At Wed, 19 Aug 2009 03:52:17 +1000, Damien Zammit wrote: > > Digidesign Mbox 2 support for Linux - Damien Zammit 19/08/2009 > > dczammit@flop:~$ dmesg > [132064.931715] ALSA sound/usb/usbaudio.c:3279: Sending Digidesign > Mbox 2 boot sequence... > [132064.934474] ALSA sound/usb/usbaudio.c:3306: device initialised! > [132064.937473] ALSA sound/usb/usbaudio.c:3315: mbox2_boot: new boot > length = 646 > [132064.945769] ALSA sound/usb/usbaudio.c:2814: 36:2:2: add audio endpoint 0x3 > [132064.950765] ALSA sound/usb/usbaudio.c:2814: 36:2:3: add audio endpoint 0x3 > [132064.957314] ALSA sound/usb/usbaudio.c:2814: 36:3:2: add audio endpoint 0x4 > [132064.961622] ALSA sound/usb/usbaudio.c:2814: 36:3:3: add audio endpoint 0x4 > [132064.964575] ALSA sound/usb/usbaudio.c:2814: 36:3:6: add audio endpoint 0x4 > [132064.971046] ALSA sound/usb/usbaudio.c:2814: 36:4:2: add audio endpoint 0x85 > [132064.973545] ALSA sound/usb/usbaudio.c:2814: 36:4:3: add audio endpoint 0x85 > [132064.979576] ALSA sound/usb/usbaudio.c:2814: 36:5:2: add audio endpoint 0x86 > [132064.982522] ALSA sound/usb/usbaudio.c:2814: 36:5:3: add audio endpoint 0x86 > [132064.986584] ALSA sound/usb/usbmidi.c:1357: created 1 output and 1 > input ports > [132064.986955] usbcore: registered new interface driver snd-usb-audio > dczammit@flop:~$ > > dczammit@flop:~$ ls /proc/asound/M2/ > id midi0 pcm0c pcm0p pcm1c pcm1p pcm2p stream0 stream1 > stream2 usbbus usbid > dczammit@flop:~$ > > dczammit@flop:~$ cat /proc/asound/M2/stream0 > Digidesign Mbox 2 at usb-0000:00:1d.1-1, full speed : USB Audio > > Playback: > Status: Stop > Interface 2 > Altset 2 > Format: 0x20 (24 bits) > Channels: 2 > Endpoint: 3 OUT (ASYNC) > Rates: 8000 - 48000 (continuous) > Interface 2 > Altset 3 > Format: 0x20 (24 bits) > Channels: 2 > Endpoint: 3 OUT (ASYNC) > Rates: 8000 - 48000 (continuous) > > Capture: > Status: Stop > Interface 5 > Altset 2 > Format: 0x20 (24 bits) > Channels: 2 > Endpoint: 6 IN (ASYNC) > Rates: 8000 - 48000 (continuous) > Interface 5 > Altset 3 > Format: 0x20 (24 bits) > Channels: 2 > Endpoint: 6 IN (SYNC) > Rates: 8000 - 48000 (continuous) > dczammit@flop:~$ > > dczammit@flop:~$ cat /proc/asound/M2/stream1 > Digidesign Mbox 2 at usb-0000:00:1d.1-1, full speed : USB Audio #1 > > Playback: > Status: Stop > Interface 3 > Altset 2 > Format: 0x20 (24 bits) > Channels: 2 > Endpoint: 4 OUT (ASYNC) > Rates: 8000 - 48000 (continuous) > Interface 3 > Altset 3 > Format: 0x20 (24 bits) > Channels: 2 > Endpoint: 4 OUT (ASYNC) > Rates: 8000 - 48000 (continuous) > > Capture: > Status: Stop > Interface 4 > Altset 2 > Format: 0x20 (24 bits) > Channels: 2 > Endpoint: 5 IN (ASYNC) > Rates: 8000 - 48000 (continuous) > Interface 4 > Altset 3 > Format: 0x20 (24 bits) > Channels: 2 > Endpoint: 5 IN (SYNC) > Rates: 8000 - 48000 (continuous) > dczammit@flop:~$ > > dczammit@flop:~$ cat /proc/asound/M2/stream2 > Digidesign Mbox 2 at usb-0000:00:1d.1-1, full speed : USB Audio #2 > > Playback: > Status: Stop > Interface 3 > Altset 6 > Format: 0x2 (16 bits) > Channels: 2 > Endpoint: 4 OUT (SYNC) > Rates: 8000 - 48000 (continuous) > dczammit@flop:~$ > > I fixed the broken pipes!! I can get speaker-test working, but I dont > get any sound... > > 1) > Is format 0x20 (S24_3LE) supported yet? I can't get it to work with > jackd version 0.116.2 The format itself is supported well in the ALSA core. At least, I don't get any bug report regarding it. > 2) > Which interfaces/altsettings should I disable? I can't quite get the > sound to come out. Well, hard to say. Trial and error... Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
