Search found 104 matches

by puleglot
Wed Jun 10, 2020 2:22 am
Forum: Computer Related Hardware
Topic: Scarlett 18i20 gen 3 Linux - Crackling Audio
Replies: 86
Views: 3731

Re: Scarlett 18i20 gen 3 Linux - Crackling Audio

Also I doubt that 18i8 will work correctly with my patch. I should probably add additional filtering of sample rates on the output interface for this device.
by puleglot
Wed May 20, 2020 4:44 pm
Forum: Computer Related Hardware
Topic: Scarlett 18i20 gen 3 Linux - Crackling Audio
Replies: 86
Views: 3731

Re: Scarlett 18i20 gen 3 Linux - Crackling Audio

Updated patch. Added Scarlett 18i8 3rd Gen. Also slightly changed the way to get altsetting.
by puleglot
Wed May 20, 2020 2:31 pm
Forum: System Tuning and Configuration
Topic: Saffire 6 USB 1.1 no inputs available in Jack [ SOLVED ]
Replies: 14
Views: 305

Re: Saffire 6 USB 1.1 no inputs available in Jack

Mr (or Mrs) Puleglot. Thank you so much for your help with this. If there's any other testing I can help with please ask. Oh, just remembeerd - I get a lot of "unable to change format on ep #82" messages when the usb-audio module is loaded, but it doesn't seem to affect anything. Thanks for testing...
by puleglot
Wed May 20, 2020 1:58 pm
Forum: Computer Related Hardware
Topic: Scarlett 18i20 gen 3 Linux - Crackling Audio
Replies: 86
Views: 3731

Re: Scarlett 18i20 gen 3 Linux - Crackling Audio

These errors: "Unable to change format on ep ..." should be fixed by the following patch:
https://git.kernel.org/pub/scm/linux/ke ... 80c63bf77f
But it is not fixing all the problems with implicit feedback AFAIS.
by puleglot
Wed May 06, 2020 12:10 am
Forum: Computer Related Hardware
Topic: Ultralite AVB
Replies: 358
Views: 43621

Re: Ultralite AVB

Patch for pcm.c with added check for subs->interface >= 0. @bluebell could you test it?
by puleglot
Tue May 05, 2020 3:38 pm
Forum: System Tuning and Configuration
Topic: Saffire 6 USB 1.1 no inputs available in Jack [ SOLVED ]
Replies: 14
Views: 305

Re: Saffire 6 USB 1.1 no inputs available in Jack

Hrmmm.. quirks-table.h looks good. Please try attached patch. With the new patch you should see "Keep Interface" mixer control via amixer, eg: $ amixer -c USB controls numid=1,iface=CARD,name='Keep Interface' And this will be an evidence that you indeed booted the right kernel. Also could you attach...
by puleglot
Tue May 05, 2020 2:25 pm
Forum: System Tuning and Configuration
Topic: Saffire 6 USB 1.1 no inputs available in Jack [ SOLVED ]
Replies: 14
Views: 305

Re: Saffire 6 USB 1.1 no inputs available in Jack

Could you attach sound/usb/quirks-table.h from your kernel source tree? I suspect that something went wrong with the patching. I can't seem to get a list of contents using your "amixer -c" command. What version of the kernel you are using? keep_iface first appeared in 4.18. But anyway we can ignore ...
by puleglot
Mon May 04, 2020 11:05 pm
Forum: Computer Related Hardware
Topic: Ultralite AVB
Replies: 358
Views: 43621

Re: Ultralite AVB

@Drumfix maybe you need a check before calling usb_set_interface() ?

Code: Select all

	case SNDRV_PCM_TRIGGER_STOP:
		if (subs->interface >= 0) {
			usb_set_interface(subs->dev, subs->interface, 0);
			subs->altset_idx = 0;
		}
by puleglot
Mon May 04, 2020 5:54 pm
Forum: System Tuning and Configuration
Topic: QjackCtl: USB-interace selection not available
Replies: 29
Views: 645

Re: QjackCtl: USB-interace selection not available

Would it be best to start a new thread do you think. I mentioned it on an existing thread as it seemed to be the same problem. Well, this thread started as a question about QjackCtl. But on the other hand these problems with QjackCtl could be also related to the lack of the capture support for Saff...
by puleglot
Mon May 04, 2020 2:25 pm
Forum: System Tuning and Configuration
Topic: QjackCtl: USB-interace selection not available
Replies: 29
Views: 645

Re: QjackCtl: USB-interace selection not available

Also note, that due to the fact that playback and capture endpoints on this card share the same interface, you might need to enable "Keep Interface" option with amixer . For example if my IIc card needed "Keep Interface" to be enabled (it doesn't need it actually), I would do the following: $ aplay ...
by puleglot
Mon May 04, 2020 1:50 pm
Forum: System Tuning and Configuration
Topic: QjackCtl: USB-interace selection not available
Replies: 29
Views: 645

Re: QjackCtl: USB-interace selection not available

boik wrote:
Mon May 04, 2020 1:25 pm
The first one (quirks-table) applied OK.
And please revert this change and make sure that quirks-table.h contains only one entry with USB_DEVICE(0x1235, 0x0010) before applying my patch.
by puleglot
Mon May 04, 2020 1:31 pm
Forum: System Tuning and Configuration
Topic: QjackCtl: USB-interace selection not available
Replies: 29
Views: 645

Re: QjackCtl: USB-interace selection not available

boik wrote:
Mon May 04, 2020 1:25 pm
The first one (quirks-table) applied OK. the second one (quirks.c) said that it was a duplicate...
The patch from my github link is already in mainline kernel. You don't need to apply it. I'll attach patch in this topic shortly.
by puleglot
Sun May 03, 2020 5:27 pm
Forum: System Tuning and Configuration
Topic: QjackCtl: USB-interace selection not available
Replies: 29
Views: 645

Re: QjackCtl: USB-interace selection not available

Hello. I'm in the same boat as you with my Saffire 6. I've got a horrible feeling that the USB 1.1 version (vendor code 1235:0010) doesn't work with Linux, but that the USB 2.0 version (vendor code 1235:8008) does. work. AFAIS, capture support for Saffire 6 (1235:0010) was never implemented [*]. If...