LinuxMusicians

Of course the output of lsusb -v doesn't change.

With the recompiled driver loaded you should see the GR-55 as audio device.

.. and this thread should be continued in the "Computer Related Hardware" section.

For a start, add this to the quirks-table.h: { /* Roland GR-55 */ USB_DEVICE(0x0582, 0x0127), .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { .vendor_name = "Roland", .product_name = "GR-55", .ifnum = QUIRK_ANY_INTERFACE, .type = QUIRK_COMPOSITE, .data =...

Getting the audio part of a Roland/Boss USB device working is usually a matter of adding a quirk and recompiling the snd-usb-audio driver.

What is the output of "sudo lsusb -v" for this device ?

The TC Konnekt 48 is supported by ALSA since kernel 4.18

For the midisport you need to have the package "midisport-firmware" installed.

The 3.0 card has its own host controller and interrupt. So if you connect your audio interface to a USB port of the 3.0 card and all other devices to your builtin USB ports, the soundcard has its own interrupt.

The short answer: Yes, you need usb 3.0 card. The long answer: You are using an xhci host controller. While this host controller allows up to 8 MSI interrupts, the linux host controller driver allocates only 1. The usb 2.0 root hub you see is integrated in the xhci host controller, so it is also usi...

i meant the first of the available AVB streams.

Then it looks as if ALSA does not use implicit feedback for synchronization of input and output for this device. Changing this requires a kernel patch.

Use 48 or 96 samples with 3 buffers. And forget about the reported latencies on W10, except if they were measured with the RTL utility from oblique audio.

cc1: error: code model kernel does not support PIC mode This is a bug on newer gcc versions. /bin/sh: 1: [: -ge: unexpected operator You are not using bash as your standard shell. Please try the updated Makefile and report back, preferably by opening an issue on github.

You find the code here https://github.com/Drumfix/avb4linux Special notes: - at present only 1 8-in and 1 8-out stream is supported (rhe dirst of the interface - all 8 channels of the szream going to the computer must be connected - You have to edit the file kernel_module/avb-config.h and replace th...

4.9.0-4-amd64 != 4.9.0-9-amd64

Btw, if you compile a module for the currently running kernel, then



is enough.

First of all make sure your kernel-headers are installed. Then: git clone https://github.com/Digigram-audio/Alsa.git cd Alsa git checkout v3.0.7 cd LX Add following 3 lines to the file "lxcommon.h": #define PCI_SUBDEVICE_ID_DIGIGRAM_LXMADI_SUBSYSTEM 0xca21 #define PCI_SUBDEVICE_ID_DIGIGRAM...

I can put up the AVB code somewhere during the weekend. A NIC with intel i210 is currently still required.