On Tue, Jul 12, 2011 at 12:39 PM, Nicolai Krakowiak <nicolai.krakowiak@xxxxxxxxx> wrote: > On Mon, Jul 11, 2011 at 3:22 AM, Daniel Mack <zonque@xxxxxxxxx> wrote: >> So we could just simply ignore this fact. Can you try what happens >> when you change the check in endpoint.c (around line 355, where the >> patch also changed things) so that it reads "fmt->bLength < 6" instead >> of "fmt->bLength != 6"? > > Done. Still no luck, unfortunately. I rebuilt with debugging turned > on and got: > > [ 255.460041] ALSA sound/usb/endpoint.c:434: 3:1:1: add audio endpoint 0x1 > [ 255.917117] ALSA sound/usb/endpoint.c:434: 3:2:1: add audio endpoint 0x82 > [ 256.374064] ALSA sound/usb/endpoint.c:434: 3:2:2: add audio endpoint 0x82 > [ 256.830798] ALSA sound/usb/mixer.c:1907: Ignoring UAC2_EXTENSION_UNIT > [ 256.830829] snd-usb-audio: probe of 1-8:1.0 failed with error -5 > [ 256.831024] ALSA sound/usb/card.c:152: 3:3:1: skipping, already claimed > [ 256.831136] ALSA sound/usb/midi.c:1687: MIDIStreaming version 01.00 > [ 256.831138] ALSA sound/usb/midi.c:1722: EP 02: 1 jack(s) > [ 256.831141] ALSA sound/usb/midi.c:1737: EP 83: 1 jack(s) > [ 256.831151] ALSA sound/usb/midi.c:1657: created 1 output and 1 input ports > > I got as far as sound/usb/card.c:514 calling snd_usb_create_mixer(). > It looks like it is hitting the default clause in check_input_term() > and returning -ENODEV. Another missing case UAC2_EXTENSION_UNIT_V2? As you seem to known what you're doing, can you try to disable the mixer creation entirely? Just bail out very early in snd_usb_create_mixer() or don't call it at all in the first place. The audio should stream without any mixer functions. >> Also, did you try this device under Mac OS X? Does it work there >> without installing a thrid-party driver? > > I just tried it. I hear headphone audio and microphone input, but I > cannot change either of the levels in System Preferences. And is there any driver they provide for their device or do they claim it "should just work" with OS X? Thanks, Daniel ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2d-c2 _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
