Focusrite Scarlett Gen 3 4i4 (and others)
Moderators: MattKingUSA, khz
Really need sum help to get my focusrite 4i4 running(Got linux mint and working with Ardour)
Hey Everyone. Please can you tell me how can i get my focurite 4i4 to run.im pretty new to this.just started to set up my own studio at home.Id be very happy for help and suggestions.Thank you
greetings from doro
greetings from doro
-
- Established Member
- Posts: 4
- Joined: Sat Apr 04, 2020 4:23 pm
- Location: UK
- Been thanked: 1 time
Re: Focusrite Scarlett Gen 3 4i4 (and others)
Hi all,
I'm running Ubuntu Studio 19.10 (20.04 when I get round to updating) and am torn between a Behringer UMC404HD, or taking a punt on a Scarlett 4i4.
My laptop only has USB3 ports, so I don't know if either are going to work properly.
But anyway, I digress... I have a decent amount of professional software development experience - mostly Windows C++/C#/.NET, but I'm playing around with C#/Mono/GTK# on Linux at the minute and I've done hardware control software in the past.
So if I can help out on any development/testing I'd be happy to.
Cheers,
Dave.
I'm running Ubuntu Studio 19.10 (20.04 when I get round to updating) and am torn between a Behringer UMC404HD, or taking a punt on a Scarlett 4i4.
My laptop only has USB3 ports, so I don't know if either are going to work properly.
But anyway, I digress... I have a decent amount of professional software development experience - mostly Windows C++/C#/.NET, but I'm playing around with C#/Mono/GTK# on Linux at the minute and I've done hardware control software in the past.
So if I can help out on any development/testing I'd be happy to.
Cheers,
Dave.
Re: Focusrite Scarlett Gen 3 4i4 (and others)
Hi Geoffrey,geoffrey wrote: ↑Mon Nov 11, 2019 6:15 am Hi all,
A really generous guy just out of the blue purchased me a Scarlett 4i4 Gen 3 as a thank you for writing the Scarlett Gen 2 Linux driver. Of course I right away had a look as to its Linux compatibility and whether I'd be able to write a Gen 3 driver. Here's what I found...
TL;DR: The class-compliant functionality works great in Linux! If you need the MIDI interface, take it out of MSD mode. My Linux driver to control the proprietary features is coming along well.
In detail:
Out of the box it comes in "MSD Mode" which means the device presents a small read-only virtual disk in addition to the PCM audio interface. On the disk there is a README file and a link to the Focusrite web site setup/registration and download page; the device serial number is included in the link to make it easier to register.
The Focusrite docs say that higher sample rates and MIDI functionality are not available until you switch it out of MSD mode. I can confirm that the USB MIDI interface was not present while in MSD mode, but I could select higher sample rates without issue.
Taking it out of MSD mode can be done with the Focusrite Control software, or by holding down the "48V" switch for 5 seconds after plugging in the USB cable. You only need to do this once.
The mixing/routing features of the unit, and the impedance, air, and pad switches can only be controlled by software using a proprietary protocol. The Gen 3 protocol is really similar to the Gen 2 protocol, so I have a working implementation already and can control: Volume, Routing (including Loopback), Mixing, Air, Impedance (Line/Inst), and Pad. It's rough and not ready for release but it works! So, let me know if you have a 4i4 unit and would like to help test it out while I'm still developing the driver.
If the 8i6, 18i8, and 18i20 devices follow the same pattern (there's no reason to think that they wouldn't) then I'd just need access to the hardware to develop and test a driver for them. So if you would like to donate in some way towards this, please let me know.
Regards,
Geoffrey.
Recently, I got a new Scarlett 18i20 3rd Gen device, in addition to the 2nd Gen I still use. With 2nd Gen, I was very happy with your work on Linux system, since I needed output volumes control. Unfortunately I'm not able to use the same driver for 3rd Gen... You said only a few changes in protocol were required, and that's good news I guess!
Would you like me to provide you with some information on this device?
Would you share your sources so that I can test it, or is that too soon for now?
Regards,
Clovis.
-
- Established Member
- Posts: 4
- Joined: Thu May 07, 2020 11:32 am
Re: Focusrite Scarlett Gen 3 4i4 (and others)
Geoffrey,
I just acquired a 3rd gen 18i8, if there's any information I can give you that would help your efforts just let me know. Thanks.
I just acquired a 3rd gen 18i8, if there's any information I can give you that would help your efforts just let me know. Thanks.
Re: Focusrite Scarlett Gen 3 4i4 (and others)
in the mean time you could help puleglot with your output to lsusb :GuitarNoob wrote: ↑Thu May 07, 2020 11:52 am Geoffrey,
I just acquired a 3rd gen 18i8, if there's any information I can give you that would help your efforts just let me know. Thanks.
viewtopic.php?p=117456#p117456
In this thread you'll find a patch that fix crackling audio that works great for my 4i4, cracklings happen only in a DAW. But puleglot is not confident enough yet, he needs to gather all the scarletts 3gen identificators.
thx
-
- Established Member
- Posts: 4
- Joined: Sat Apr 04, 2020 4:23 pm
- Location: UK
- Been thanked: 1 time
Re: Focusrite Scarlett Gen 3 4i4 (and others)
Ok, so I went for the Scarlett 4i4 (because it was available right now and who wants to wait for new toys ) Initial findings as follows:
1. System and use case
OS: Ubuntu Studio 19.10
Kernel: 5.3.0-51-lowlatency
Plugged in to a USB3 port and running Jack
I am basically sticking 2 dynamic mics in the front using XLR and two electro-acoustic guitars in the back using TS cables. So I don’t need to switch between line/instr levels right now, but I'll probably want to use the electric guitar at some stage.
I don’t use MIDI much, other than a USB keyboard, so the in/out ports on the back of the 4i4 are of little interest to me personally.
2. Does it work?
1. Yes: I can plug it in and get signals to Ardour; Inputs and outputs show up in Carla (6 ins, interestingly, 4 outs)
2. JACK started using Ubuntu Studio Controls. (I’ve tried it successfully with QjackCtl too, now I have some sort of idea how that works - knowledge increasing hourly!)
3. QASMixer lists the Scarlett, but if selected nothing shows. Sometimes crashes.
4. Pressing 48V for 5 seconds didn’t drop it out of MSD for me.
5. I couldn’t access the built-in drive, even though it showed up in File Manager.
6. So I went and did the setup on Windows which switched it out of MSD. And I registered the device with Focusrite while I was at it.
7. The control software is underwhelming. If it was more like the control software that came with my Saffire Pro 24 then I could see why they wouldn’t want to develop it for a third OS, but this looks pretty simple software. Anyway, Focusrite can support what they want I suppose, but Mono and a web-based interface would make it practically 1 build for 3 systems. Almost.
8. Anyway, taking it out of MSD didn’t break the thing - all 4 inputs were still functioning on Ubuntu.
9. Signal was a bit low on inputs 3 & 4 on the rear (this was with the electro-acoustic guitars plugged in and yes the batteries were fine in the preamps). The 404HD has physical gain controls for inputs 3&4, but I got Jack Mixer to boost those signals. Seems to work ok. No doubt there is a much better way to do this.
10. I can’t get any signal to the headphones jack (guessing internal routing?)
11. I seem to be able to get a signal to an external speaker / monitor from outputs 1 & 2 but not 3 & 4, regardless of any messing about in Carla. This may just be default internal routing setup in the Scarlett.
I am happy to admit that at least some of the issues above are down to my lack of knowledge of JACK, Carla and Linux audio in general (I’m a bit new here)
3. What am I missing?
Obviously, being able to mix the internals for zero/low-latency monitoring would be great, but it’s not a big thing for me at the minute. Later in the year when I’m planning on doing some recording, then yes it would be helpful.
Getting a signal to the headphone output would be really very handy!
1. System and use case
OS: Ubuntu Studio 19.10
Kernel: 5.3.0-51-lowlatency
Plugged in to a USB3 port and running Jack
I am basically sticking 2 dynamic mics in the front using XLR and two electro-acoustic guitars in the back using TS cables. So I don’t need to switch between line/instr levels right now, but I'll probably want to use the electric guitar at some stage.
I don’t use MIDI much, other than a USB keyboard, so the in/out ports on the back of the 4i4 are of little interest to me personally.
2. Does it work?
1. Yes: I can plug it in and get signals to Ardour; Inputs and outputs show up in Carla (6 ins, interestingly, 4 outs)
2. JACK started using Ubuntu Studio Controls. (I’ve tried it successfully with QjackCtl too, now I have some sort of idea how that works - knowledge increasing hourly!)
3. QASMixer lists the Scarlett, but if selected nothing shows. Sometimes crashes.
4. Pressing 48V for 5 seconds didn’t drop it out of MSD for me.
5. I couldn’t access the built-in drive, even though it showed up in File Manager.
6. So I went and did the setup on Windows which switched it out of MSD. And I registered the device with Focusrite while I was at it.
7. The control software is underwhelming. If it was more like the control software that came with my Saffire Pro 24 then I could see why they wouldn’t want to develop it for a third OS, but this looks pretty simple software. Anyway, Focusrite can support what they want I suppose, but Mono and a web-based interface would make it practically 1 build for 3 systems. Almost.
8. Anyway, taking it out of MSD didn’t break the thing - all 4 inputs were still functioning on Ubuntu.
9. Signal was a bit low on inputs 3 & 4 on the rear (this was with the electro-acoustic guitars plugged in and yes the batteries were fine in the preamps). The 404HD has physical gain controls for inputs 3&4, but I got Jack Mixer to boost those signals. Seems to work ok. No doubt there is a much better way to do this.
10. I can’t get any signal to the headphones jack (guessing internal routing?)
11. I seem to be able to get a signal to an external speaker / monitor from outputs 1 & 2 but not 3 & 4, regardless of any messing about in Carla. This may just be default internal routing setup in the Scarlett.
I am happy to admit that at least some of the issues above are down to my lack of knowledge of JACK, Carla and Linux audio in general (I’m a bit new here)
3. What am I missing?
Obviously, being able to mix the internals for zero/low-latency monitoring would be great, but it’s not a big thing for me at the minute. Later in the year when I’m planning on doing some recording, then yes it would be helpful.
Getting a signal to the headphone output would be really very handy!
-
- Established Member
- Posts: 4
- Joined: Sat Apr 04, 2020 4:23 pm
- Location: UK
- Been thanked: 1 time
Re: Focusrite Scarlett Gen 3 4i4 (and others)
Quick followup:
When I had stopped messing about with JACK, I shut it down and I could get sound from the computer (YouTube etc) out of the Scarlett headphone jack and outputs 1 & 2. The Scarlett was showing up as an input and output device in Pulse Audio - so it should be possible to get DAW signal out of the Scarlett somehow when JACK is running again...
Also, the 20.04 upgrade arrived and took Jack Mixer away from me... so I'm sending the two guitars through Carla with a gain plugin to boost the signal. That means I can't use Carla for compressors for the vocals I guess, as I don't want to increase gain on the vocal signals.
Any thoughts on either of these things would be appreciated....
When I had stopped messing about with JACK, I shut it down and I could get sound from the computer (YouTube etc) out of the Scarlett headphone jack and outputs 1 & 2. The Scarlett was showing up as an input and output device in Pulse Audio - so it should be possible to get DAW signal out of the Scarlett somehow when JACK is running again...
Also, the 20.04 upgrade arrived and took Jack Mixer away from me... so I'm sending the two guitars through Carla with a gain plugin to boost the signal. That means I can't use Carla for compressors for the vocals I guess, as I don't want to increase gain on the vocal signals.
Any thoughts on either of these things would be appreciated....
-
- Established Member
- Posts: 4
- Joined: Sat Apr 04, 2020 4:23 pm
- Location: UK
- Been thanked: 1 time
Re: Focusrite Scarlett Gen 3 4i4 (and others)
OK, yet another quick update. Returned to the new setup today and I seem to have output of DAW playback to both the headphone jack and outputs 1&2 on the rear (external speaker). I'm guessing user error yesterday... I probably had the routing from the master fader in Ardour set up wrong. Sorry about that.
So, apart from not being able to switch between inst/line level on inputs 1 & 2, and needing to find something to replace Jack Mixer with, I'm good to go. Yes, access to internal routing for low latency monitoring would be nice, but that's not urgent for me.
Oh yes, system info post-update: Ubuntu Studio 20.04; kernel version: 5.4.0-29-lowlatency.
Any questions or stuff you'd like me to try, just let me know.
So, apart from not being able to switch between inst/line level on inputs 1 & 2, and needing to find something to replace Jack Mixer with, I'm good to go. Yes, access to internal routing for low latency monitoring would be nice, but that's not urgent for me.
Oh yes, system info post-update: Ubuntu Studio 20.04; kernel version: 5.4.0-29-lowlatency.
Any questions or stuff you'd like me to try, just let me know.
-
- Established Member
- Posts: 4
- Joined: Thu May 07, 2020 11:32 am
Re: Focusrite Scarlett Gen 3 4i4 (and others)
Here is the output of lsusb -vD for the device node: ( VendorId: 1235 ProductId: 8214)triiif wrote: ↑Fri May 08, 2020 12:36 pmin the mean time you could help puleglot with your output to lsusb :GuitarNoob wrote: ↑Thu May 07, 2020 11:52 am Geoffrey,
I just acquired a 3rd gen 18i8, if there's any information I can give you that would help your efforts just let me know. Thanks.
viewtopic.php?p=117456#p117456
In this thread you'll find a patch that fix crackling audio that works great for my 4i4, cracklings happen only in a DAW. But puleglot is not confident enough yet, he needs to gather all the scarletts 3gen identificators.
thx
Code: Select all
Device: ID 1235:8214 Focusrite-Novation
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x1235 Focusrite-Novation
idProduct 0x8214
bcdDevice 6.45
iManufacturer 1 Focusrite
iProduct 3 Scarlett 18i8 USB
iSerial 2 F9BKJZJ9600D3B
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0277
bNumInterfaces 6
bConfigurationValue 1
iConfiguration 9 Internal
bmAttributes 0xc0
Self Powered
MaxPower 0mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 3
bFunctionClass 1 Audio
bFunctionSubClass 0
bFunctionProtocol 32
iFunction 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 32
iInterface 3 Scarlett 18i8 USB
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 2.00
bCategory 8
wTotalLength 0x00bf
bmControls 0x00
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 41
bmAttributes 3 Internal programmable clock
bmControls 0x07
Clock Frequency Control (read/write)
Clock Validity Control (read-only)
bAssocTerminal 0
iClockSource 9 Internal
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 42
bmAttributes 0 External clock
bmControls 0x07
Clock Frequency Control (read/write)
Clock Validity Control (read-only)
bAssocTerminal 0
iClockSource 11 S/PDIF
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 43
bmAttributes 0 External clock
bmControls 0x07
Clock Frequency Control (read/write)
Clock Validity Control (read-only)
bAssocTerminal 0
iClockSource 12 ADAT
AudioControl Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 11 (CLOCK_SELECTOR)
bClockID 40
bNrInPins 3
baCSourceID(0) 41
baCSourceID(1) 42
baCSourceID(2) 43
bmControls 0x03
Clock Selector Control (read/write)
iClockSelector 8 Clock Source
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bCSourceID 40
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 19 Output 1
bmControls 0x0000
iTerminal 6 Scarlett 18i8 USB
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 20
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 2
bCSourceID 40
bmControls 0x0000
iTerminal 0
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Microphone
bAssocTerminal 0
bCSourceID 40
bNrChannels 20
bmChannelConfig 0x00000000
iChannelNames 27 Input 1
bmControls 0x0000
iTerminal 0
AudioControl Interface Descriptor:
bLength 90
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 11
bSourceID 1
bmaControls(0) 0x00000000
bmaControls(1) 0x00000000
bmaControls(2) 0x00000000
bmaControls(3) 0x00000000
bmaControls(4) 0x00000000
bmaControls(5) 0x00000000
bmaControls(6) 0x00000000
bmaControls(7) 0x00000000
bmaControls(8) 0x00000000
bmaControls(9) 0x00000000
bmaControls(10) 0x00000000
bmaControls(11) 0x00000000
bmaControls(12) 0x00000000
bmaControls(13) 0x00000000
bmaControls(14) 0x00000000
bmaControls(15) 0x00000000
bmaControls(16) 0x00000000
bmaControls(17) 0x00000000
bmaControls(18) 0x00000000
bmaControls(19) 0x00000000
bmaControls(20) 0x00000000
iFeature 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 22
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 11
bCSourceID 40
bmControls 0x0000
iTerminal 7 Scarlett 18i8 USB
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 4 Scarlett 18i8 USB
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 4 Scarlett 18i8 USB
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 2
bmControls 0x04
Valid Alternate Setting Control (read-only)
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 19 Output 1
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0320 1x 800 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 1 Milliseconds
wLockDelay 0x0200
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 4 Scarlett 18i8 USB
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 2
bmControls 0x04
Valid Alternate Setting Control (read-only)
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 19 Output 1
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0320 1x 800 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 1 Milliseconds
wLockDelay 0x0200
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 4 Scarlett 18i8 USB
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 2
bmControls 0x04
Valid Alternate Setting Control (read-only)
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 19 Output 1
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0320 1x 800 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 1 Milliseconds
wLockDelay 0x0200
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5 Scarlett 18i8 USB
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5 Scarlett 18i8 USB
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 22
bmControls 0x04
Valid Alternate Setting Control (read-only)
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 20
bmChannelConfig 0x00000000
iChannelNames 27 Input 1
AudioStreaming Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
junk at descriptor end: 80 bb 00 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 37
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Implicit feedback Data
wMaxPacketSize 0x0230 1x 560 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 1 Milliseconds
wLockDelay 0x0200
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5 Scarlett 18i8 USB
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 22
bmControls 0x04
Valid Alternate Setting Control (read-only)
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 16
bmChannelConfig 0x00000000
iChannelNames 27 Input 1
AudioStreaming Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
junk at descriptor end: 00 77 01 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 37
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Implicit feedback Data
wMaxPacketSize 0x0340 1x 832 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 1 Milliseconds
wLockDelay 0x0200
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5 Scarlett 18i8 USB
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 22
bmControls 0x04
Valid Alternate Setting Control (read-only)
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 10
bmChannelConfig 0x00000000
iChannelNames 27 Input 1
AudioStreaming Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
junk at descriptor end: 00 ee 02 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 37
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Implicit feedback Data
wMaxPacketSize 0x03e8 1x 1000 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 1 Milliseconds
wLockDelay 0x0200
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 1
bInterfaceProtocol 32
iInterface 15 Focusrite Control
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 4
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 0x0009
bInCollection 1
baInterfaceNr(0) 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 5
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 1 Audio
bInterfaceSubClass 3 MIDI Streaming
bInterfaceProtocol 0
iInterface 0
MIDIStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 0x0041
MIDIStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (MIDI_IN_JACK)
bJackType 1 Embedded
bJackID 1
iJack 0
MIDIStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (MIDI_IN_JACK)
bJackType 2 External
bJackID 2
iJack 14 Focusrite MIDI In
MIDIStreaming Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (MIDI_OUT_JACK)
bJackType 1 Embedded
bJackID 3
bNrInputPins 1
baSourceID( 0) 2
BaSourcePin( 0) 1
iJack 0
MIDIStreaming Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (MIDI_OUT_JACK)
bJackType 2 External
bJackID 4
bNrInputPins 1
baSourceID( 0) 1
BaSourcePin( 0) 1
iJack 13 Focusrite MIDI Out
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
bRefresh 0
bSynchAddress 0
MIDIStreaming Endpoint Descriptor:
bLength 5
bDescriptorType 37
bDescriptorSubtype 1 (GENERAL)
bNumEmbMIDIJack 1
baAssocJackID( 0) 1
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
bRefresh 0
bSynchAddress 0
MIDIStreaming Endpoint Descriptor:
bLength 5
bDescriptorType 37
bDescriptorSubtype 1 (GENERAL)
bNumEmbMIDIJack 1
baAssocJackID( 0) 3
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.10
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0001
Self Powered
Re: Focusrite Scarlett Gen 3 4i4 (and others)
Geoffrey,
Like GuitarNoob, I also just got a 3rd gen 18i8. I'd love to chip in and help with anything I can if it would be useful.
OS: Ubuntu Studio 20.04
Kernel: 5.4.0-29-lowlatency
I've had a similar experience: can read inputs 1-4 on the front and 5-8 on the back no problem, and I've been able to get something out of all 6 TRS outputs. Nothing in the way of software controls yet.
No luck taking it out of MSD mode though. Holding down the 48V button for 5 sec (like for the 4i4) did nothing. Per the 18i8 user guide
lsusb -vD output:
GuitarNoob,
It looks nearly identical to your output, except I'm missing the "MIDIStreaming Interface Descriptor" blocks at the end. Were you able to take the 18i8 out of MSD mode?
Like GuitarNoob, I also just got a 3rd gen 18i8. I'd love to chip in and help with anything I can if it would be useful.
OS: Ubuntu Studio 20.04
Kernel: 5.4.0-29-lowlatency
I've had a similar experience: can read inputs 1-4 on the front and 5-8 on the back no problem, and I've been able to get something out of all 6 TRS outputs. Nothing in the way of software controls yet.
No luck taking it out of MSD mode though. Holding down the 48V button for 5 sec (like for the 4i4) did nothing. Per the 18i8 user guide
Several attempts of this have done nothing.In order to force your Scarlett 18i8 out of MSD mode without first registering it, hold down the 48Vbutton for Inputs 1 and 2 while disconnecting and reconnecting the USB cable, and then continue to hold the same 48V button for a further five seconds.
lsusb -vD output:
Code: Select all
Device: ID 1235:8214 Focusrite-Novation
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.10
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x1235 Focusrite-Novation
idProduct 0x8214
bcdDevice 6.10
iManufacturer 1
iProduct 3
iSerial 2
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0232
bNumInterfaces 5
bConfigurationValue 1
iConfiguration 9
bmAttributes 0xc0
Self Powered
MaxPower 0mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 3
bFunctionClass 1 Audio
bFunctionSubClass 0
bFunctionProtocol 32
iFunction 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 32
iInterface 3
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 2.00
bCategory 8
wTotalLength 0x00bf
bmControls 0x00
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 41
bmAttributes 3 Internal programmable clock
bmControls 0x07
Clock Frequency Control (read/write)
Clock Validity Control (read-only)
bAssocTerminal 0
iClockSource 9
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 42
bmAttributes 0 External clock
bmControls 0x07
Clock Frequency Control (read/write)
Clock Validity Control (read-only)
bAssocTerminal 0
iClockSource 11
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 43
bmAttributes 0 External clock
bmControls 0x07
Clock Frequency Control (read/write)
Clock Validity Control (read-only)
bAssocTerminal 0
iClockSource 12
AudioControl Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 11 (CLOCK_SELECTOR)
bClockID 40
bNrInPins 3
baCSourceID(0) 41
baCSourceID(1) 42
baCSourceID(2) 43
bmControls 0x03
Clock Selector Control (read/write)
iClockSelector 8
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bCSourceID 40
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 19
bmControls 0x0000
iTerminal 6
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 20
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 2
bCSourceID 40
bmControls 0x0000
iTerminal 0
AudioControl Interface Descriptor:
bLength 17
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Microphone
bAssocTerminal 0
bCSourceID 40
bNrChannels 20
bmChannelConfig 0x00000000
iChannelNames 27
bmControls 0x0000
iTerminal 0
AudioControl Interface Descriptor:
bLength 90
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 11
bSourceID 1
bmaControls(0) 0x00000000
bmaControls(1) 0x00000000
bmaControls(2) 0x00000000
bmaControls(3) 0x00000000
bmaControls(4) 0x00000000
bmaControls(5) 0x00000000
bmaControls(6) 0x00000000
bmaControls(7) 0x00000000
bmaControls(8) 0x00000000
bmaControls(9) 0x00000000
bmaControls(10) 0x00000000
bmaControls(11) 0x00000000
bmaControls(12) 0x00000000
bmaControls(13) 0x00000000
bmaControls(14) 0x00000000
bmaControls(15) 0x00000000
bmaControls(16) 0x00000000
bmaControls(17) 0x00000000
bmaControls(18) 0x00000000
bmaControls(19) 0x00000000
bmaControls(20) 0x00000000
iFeature 0
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 22
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 11
bCSourceID 40
bmControls 0x0000
iTerminal 7
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 4
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 4
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 2
bmControls 0x04
Valid Alternate Setting Control (read-only)
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 19
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0320 1x 800 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 1 Milliseconds
wLockDelay 0x0200
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 4
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 2
bmControls 0x04
Valid Alternate Setting Control (read-only)
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 19
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0320 1x 800 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 1 Milliseconds
wLockDelay 0x0200
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 4
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 2
bmControls 0x04
Valid Alternate Setting Control (read-only)
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 8
bmChannelConfig 0x00000000
iChannelNames 19
AudioStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0320 1x 800 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 1 Milliseconds
wLockDelay 0x0200
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 22
bmControls 0x04
Valid Alternate Setting Control (read-only)
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 20
bmChannelConfig 0x00000000
iChannelNames 27
AudioStreaming Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
junk at descriptor end: 80 bb 00 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 37
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Implicit feedback Data
wMaxPacketSize 0x0230 1x 560 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 1 Milliseconds
wLockDelay 0x0200
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 22
bmControls 0x04
Valid Alternate Setting Control (read-only)
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 16
bmChannelConfig 0x00000000
iChannelNames 27
AudioStreaming Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
junk at descriptor end: 00 77 01 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 37
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Implicit feedback Data
wMaxPacketSize 0x0340 1x 832 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 1 Milliseconds
wLockDelay 0x0200
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 32
iInterface 5
AudioStreaming Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 22
bmControls 0x04
Valid Alternate Setting Control (read-only)
bFormatType 1
bmFormats 0x00000001
PCM
bNrChannels 10
bmChannelConfig 0x00000000
iChannelNames 27
AudioStreaming Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bSubslotSize 4
bBitResolution 24
junk at descriptor end: 00 ee 02 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 37
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Implicit feedback Data
wMaxPacketSize 0x03e8 1x 1000 bytes
bInterval 1
AudioStreaming Endpoint Descriptor:
bLength 8
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bmControls 0x00
bLockDelayUnits 1 Milliseconds
wLockDelay 0x0200
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 1
bInterfaceProtocol 32
iInterface 15
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 4
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk-Only
iInterface 3
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
It looks nearly identical to your output, except I'm missing the "MIDIStreaming Interface Descriptor" blocks at the end. Were you able to take the 18i8 out of MSD mode?
-
- Established Member
- Posts: 4
- Joined: Thu May 07, 2020 11:32 am
Re: Focusrite Scarlett Gen 3 4i4 (and others)
I did get it out of MSD mode. I first tried to using the method in the docs but it didn't seem to work so IIRC I just held down the 48v button for about 15 seconds while powering it on.alex wrote: ↑Tue May 12, 2020 1:26 am Geoffrey,
Like GuitarNoob, I also just got a 3rd gen 18i8. I'd love to chip in and help with anything I can if it would be useful.
OS: Ubuntu Studio 20.04
Kernel: 5.4.0-29-lowlatency
I've had a similar experience: can read inputs 1-4 on the front and 5-8 on the back no problem, and I've been able to get something out of all 6 TRS outputs. Nothing in the way of software controls yet.
No luck taking it out of MSD mode though. Holding down the 48V button for 5 sec (like for the 4i4) did nothing. Per the 18i8 user guideSeveral attempts of this have done nothing.In order to force your Scarlett 18i8 out of MSD mode without first registering it, hold down the 48Vbutton for Inputs 1 and 2 while disconnecting and reconnecting the USB cable, and then continue to hold the same 48V button for a further five seconds.
lsusb -vD output:GuitarNoob,Code: Select all
Device: ID 1235:8214 Focusrite-Novation Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.10 bDeviceClass 239 Miscellaneous Device bDeviceSubClass 2 bDeviceProtocol 1 Interface Association bMaxPacketSize0 64 idVendor 0x1235 Focusrite-Novation idProduct 0x8214 bcdDevice 6.10 iManufacturer 1 iProduct 3 iSerial 2 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0232 bNumInterfaces 5 bConfigurationValue 1 iConfiguration 9 bmAttributes 0xc0 Self Powered MaxPower 0mA Interface Association: bLength 8 bDescriptorType 11 bFirstInterface 0 bInterfaceCount 3 bFunctionClass 1 Audio bFunctionSubClass 0 bFunctionProtocol 32 iFunction 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 1 Control Device bInterfaceProtocol 32 iInterface 3 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 2.00 bCategory 8 wTotalLength 0x00bf bmControls 0x00 AudioControl Interface Descriptor: bLength 8 bDescriptorType 36 bDescriptorSubtype 10 (CLOCK_SOURCE) bClockID 41 bmAttributes 3 Internal programmable clock bmControls 0x07 Clock Frequency Control (read/write) Clock Validity Control (read-only) bAssocTerminal 0 iClockSource 9 AudioControl Interface Descriptor: bLength 8 bDescriptorType 36 bDescriptorSubtype 10 (CLOCK_SOURCE) bClockID 42 bmAttributes 0 External clock bmControls 0x07 Clock Frequency Control (read/write) Clock Validity Control (read-only) bAssocTerminal 0 iClockSource 11 AudioControl Interface Descriptor: bLength 8 bDescriptorType 36 bDescriptorSubtype 10 (CLOCK_SOURCE) bClockID 43 bmAttributes 0 External clock bmControls 0x07 Clock Frequency Control (read/write) Clock Validity Control (read-only) bAssocTerminal 0 iClockSource 12 AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 11 (CLOCK_SELECTOR) bClockID 40 bNrInPins 3 baCSourceID(0) 41 baCSourceID(1) 42 baCSourceID(2) 43 bmControls 0x03 Clock Selector Control (read/write) iClockSelector 8 AudioControl Interface Descriptor: bLength 17 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 2 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bCSourceID 40 bNrChannels 8 bmChannelConfig 0x00000000 iChannelNames 19 bmControls 0x0000 iTerminal 6 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 20 wTerminalType 0x0301 Speaker bAssocTerminal 0 bSourceID 2 bCSourceID 40 bmControls 0x0000 iTerminal 0 AudioControl Interface Descriptor: bLength 17 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 1 wTerminalType 0x0201 Microphone bAssocTerminal 0 bCSourceID 40 bNrChannels 20 bmChannelConfig 0x00000000 iChannelNames 27 bmControls 0x0000 iTerminal 0 AudioControl Interface Descriptor: bLength 90 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 11 bSourceID 1 bmaControls(0) 0x00000000 bmaControls(1) 0x00000000 bmaControls(2) 0x00000000 bmaControls(3) 0x00000000 bmaControls(4) 0x00000000 bmaControls(5) 0x00000000 bmaControls(6) 0x00000000 bmaControls(7) 0x00000000 bmaControls(8) 0x00000000 bmaControls(9) 0x00000000 bmaControls(10) 0x00000000 bmaControls(11) 0x00000000 bmaControls(12) 0x00000000 bmaControls(13) 0x00000000 bmaControls(14) 0x00000000 bmaControls(15) 0x00000000 bmaControls(16) 0x00000000 bmaControls(17) 0x00000000 bmaControls(18) 0x00000000 bmaControls(19) 0x00000000 bmaControls(20) 0x00000000 iFeature 0 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 22 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bSourceID 11 bCSourceID 40 bmControls 0x0000 iTerminal 7 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 4 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 4 AudioStreaming Interface Descriptor: bLength 16 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 2 bmControls 0x04 Valid Alternate Setting Control (read-only) bFormatType 1 bmFormats 0x00000001 PCM bNrChannels 8 bmChannelConfig 0x00000000 iChannelNames 19 AudioStreaming Interface Descriptor: bLength 6 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bSubslotSize 4 bBitResolution 24 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0320 1x 800 bytes bInterval 1 AudioStreaming Endpoint Descriptor: bLength 8 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bmControls 0x00 bLockDelayUnits 1 Milliseconds wLockDelay 0x0200 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 4 AudioStreaming Interface Descriptor: bLength 16 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 2 bmControls 0x04 Valid Alternate Setting Control (read-only) bFormatType 1 bmFormats 0x00000001 PCM bNrChannels 8 bmChannelConfig 0x00000000 iChannelNames 19 AudioStreaming Interface Descriptor: bLength 6 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bSubslotSize 4 bBitResolution 24 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0320 1x 800 bytes bInterval 1 AudioStreaming Endpoint Descriptor: bLength 8 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bmControls 0x00 bLockDelayUnits 1 Milliseconds wLockDelay 0x0200 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 3 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 4 AudioStreaming Interface Descriptor: bLength 16 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 2 bmControls 0x04 Valid Alternate Setting Control (read-only) bFormatType 1 bmFormats 0x00000001 PCM bNrChannels 8 bmChannelConfig 0x00000000 iChannelNames 19 AudioStreaming Interface Descriptor: bLength 6 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bSubslotSize 4 bBitResolution 24 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0320 1x 800 bytes bInterval 1 AudioStreaming Endpoint Descriptor: bLength 8 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bmControls 0x00 bLockDelayUnits 1 Milliseconds wLockDelay 0x0200 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 5 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 5 AudioStreaming Interface Descriptor: bLength 16 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 22 bmControls 0x04 Valid Alternate Setting Control (read-only) bFormatType 1 bmFormats 0x00000001 PCM bNrChannels 20 bmChannelConfig 0x00000000 iChannelNames 27 AudioStreaming Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bSubslotSize 4 bBitResolution 24 junk at descriptor end: 80 bb 00 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 37 Transfer Type Isochronous Synch Type Asynchronous Usage Type Implicit feedback Data wMaxPacketSize 0x0230 1x 560 bytes bInterval 1 AudioStreaming Endpoint Descriptor: bLength 8 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bmControls 0x00 bLockDelayUnits 1 Milliseconds wLockDelay 0x0200 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 2 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 5 AudioStreaming Interface Descriptor: bLength 16 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 22 bmControls 0x04 Valid Alternate Setting Control (read-only) bFormatType 1 bmFormats 0x00000001 PCM bNrChannels 16 bmChannelConfig 0x00000000 iChannelNames 27 AudioStreaming Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bSubslotSize 4 bBitResolution 24 junk at descriptor end: 00 77 01 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 37 Transfer Type Isochronous Synch Type Asynchronous Usage Type Implicit feedback Data wMaxPacketSize 0x0340 1x 832 bytes bInterval 1 AudioStreaming Endpoint Descriptor: bLength 8 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bmControls 0x00 bLockDelayUnits 1 Milliseconds wLockDelay 0x0200 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 3 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 32 iInterface 5 AudioStreaming Interface Descriptor: bLength 16 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 22 bmControls 0x04 Valid Alternate Setting Control (read-only) bFormatType 1 bmFormats 0x00000001 PCM bNrChannels 10 bmChannelConfig 0x00000000 iChannelNames 27 AudioStreaming Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bSubslotSize 4 bBitResolution 24 junk at descriptor end: 00 ee 02 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 37 Transfer Type Isochronous Synch Type Asynchronous Usage Type Implicit feedback Data wMaxPacketSize 0x03e8 1x 1000 bytes bInterval 1 AudioStreaming Endpoint Descriptor: bLength 8 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x00 bmControls 0x00 bLockDelayUnits 1 Milliseconds wLockDelay 0x0200 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 1 bInterfaceProtocol 32 iInterface 15 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk-Only iInterface 3 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0
It looks nearly identical to your output, except I'm missing the "MIDIStreaming Interface Descriptor" blocks at the end. Were you able to take the 18i8 out of MSD mode?
Re: Focusrite Scarlett Gen 3 4i4 (and others)
Just stumbled accross this thread after I bought a Scarlett 8i6 3rd. gen - I am happy to help testing! Is there any chance getting the corresponding patch?
-
- Established Member
- Posts: 10
- Joined: Sun Apr 29, 2012 3:08 pm
Re: Focusrite Scarlett Gen 3 4i4 (and others)
Hi!
I have managed to activate the different INST AIR PAD modes ... and route the inputs and outputs ... HOW? with a virtual machine with windows and de focusrite control... after configuring my focusrite I re-activate the card in linux and it works!
It can be a bit tedious if you make a lot of changes, but if not, it works fine.
see you!
I have managed to activate the different INST AIR PAD modes ... and route the inputs and outputs ... HOW? with a virtual machine with windows and de focusrite control... after configuring my focusrite I re-activate the card in linux and it works!
It can be a bit tedious if you make a lot of changes, but if not, it works fine.
see you!
Ó.
not english fluently...
not english fluently...
Re: Focusrite Scarlett Gen 3 4i4 (and others)
Hi olivermusico,
Indeed that worked for me too and that was the first "solution" I came up with, although that's really not convenient. I used a real Windows computer, and as long as you keep the power source active, you can configure the card from Windows and get it the configured the same on Linux system.
So I confirm that works with both 2nd and 3rd Gen Scarlett soundcards... but that's only a workaround!
Thanks.
Indeed that worked for me too and that was the first "solution" I came up with, although that's really not convenient. I used a real Windows computer, and as long as you keep the power source active, you can configure the card from Windows and get it the configured the same on Linux system.
So I confirm that works with both 2nd and 3rd Gen Scarlett soundcards... but that's only a workaround!
Thanks.
olivermusico wrote: ↑Sun May 17, 2020 2:00 pm Hi!
I have managed to activate the different INST AIR PAD modes ... and route the inputs and outputs ... HOW? with a virtual machine with windows and de focusrite control... after configuring my focusrite I re-activate the card in linux and it works!
It can be a bit tedious if you make a lot of changes, but if not, it works fine.
see you!
-
- Established Member
- Posts: 33
- Joined: Fri Apr 21, 2017 10:52 am
- Has thanked: 3 times
- Been thanked: 2 times
Re: Focusrite Scarlett Gen 3 4i4 (and others)
Just to confirm that this worked for me with my 3rd Gen 18i8.GuitarNoob wrote: ↑Wed May 13, 2020 1:46 am I did get it out of MSD mode. I first tried to using the method in the docs but it didn't seem to work so IIRC I just held down the 48v button for about 15 seconds while powering it on.
* Turn it off
* Hold down the left 48V button (not both of them)
* Turn it on again
* Hold the button down for 15 seconds or whatever (could be less)