mryback@xxxxxxxxxxxxx wrote: > On Tue, 16 Nov 2004, Clemens Ladisch wrote: > > Please show the output of "lsusb -v" for this device. > > Here goes. Warning, it's plenty long... > ... This device has some quirks similar to the Quattro. Please try the patch below, this should give you two two-channel devices. Please try to test a sample rate from each alternate setting (see /proc/asound/cardX/streamX). If playback or recording results in garbage, then this device uses big-endian sample like some others from M-Audio, and I'll have to write another patch. HTH Clemens -- --- alsa-kernel/usb/usbquirks.h 30 Sep 2004 10:11:25 -0000 1.38 +++ alsa-kernel/usb/usbquirks.h 17 Nov 2004 08:44:22 -0000 @@ -936,11 +936,36 @@ .driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) { .vendor_name = "M-Audio", .product_name = "OmniStudio", - .ifnum = 9, - .type = QUIRK_MIDI_MIDIMAN, - .data = & (const snd_usb_midi_endpoint_info_t) { - .out_cables = 0x0001, - .in_cables = 0x0001 + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = & (const snd_usb_audio_quirk_t[]) { + { + .ifnum = 4, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 5, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 7, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 8, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 9, + .type = QUIRK_MIDI_MIDIMAN, + .data = & (const snd_usb_midi_endpoint_info_t) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } } } },