Mbox II DigiDisign

Mbox II DigiDisign

[rmgls]

hello all,

Can you tell me please if the external usb audio interface
mbox 2 from digidisign is supported by alsa?

Here is my config,

sony laptop, with an integrated alc260 chip (snd-hda).
and the mbox on debian.

now the different debian messages:

    	dmesg
...
usb 2-1: new full speed USB device using uhci_hcd and address 3
usb 2-1: config 1 interface 2 has no altsetting 1
usb 2-1: config 1 interface 3 has no altsetting 1
usb 2-1: config 1 interface 4 has no altsetting 1
usb 2-1: config 1 interface 5 has no altsetting 1
usb 2-1: configuration #1 chosen from 1 choice
usbcore: registered new interface driver snd-usb-audio
usb 2-1: USB disconnect, address 3
usb 2-1: new full speed USB device using uhci_hcd and address 4
usb 2-1: config 1 interface 2 has no altsetting 1
usb 2-1: config 1 interface 3 has no altsetting 1
usb 2-1: config 1 interface 4 has no altsetting 1
usb 2-1: config 1 interface 5 has no altsetting 1
usb 2-1: configuration #1 chosen from 1 choice


        cat /dev/sndstat
Sound Driver:3.8.1a-980706 (ALSA v1.0.15 emulation code)
Kernel: Linux mydomain.music 2.6.22-2-686 #1 SMP Fri Aug 31 00:24:01 UTC 2007 i686
Config options: 0

Installed drivers: 
Type 10: ALSA emulation

Card config: 
HDA Intel at 0x80000000 irq 19
Digidesign Mbox 2  at usb-0000:00:1d.1-1, full speed

Audio devices:
0: ALC260 Analog (DUPLEX)
1: USB Audio (DUPLEX)

Synth devices: NOT ENABLED IN CONFIG

Midi devices: NOT ENABLED IN CONFIG

Timers:
7: system timer

Mixers:
0: Realtek ALC260
1: USB Mixer

aplay plays nothing and reports: (alsa-lib pcm error).
alsamixer -c 1 reports:
no mixer elem found.

   a google search does not provide no interesting technical sheet,
at least i did not found any.
have you something please:
datasheets, config?

thanks in advance.
Best regards

rmgls@free.fr

Re: Mbox II DigiDisign

[Clemens Ladisch]

rmgls@free.fr wrote:
> Can you tell me please if the external usb audio interface
> mbox 2 from digidisign is supported by alsa?

Maybe.  All standard-compliant devices are supported, but Digidesign
usually builds proprietary devices.

> Digidesign Mbox 2  at usb-0000:00:1d.1-1, full speed

This looks good.

> aplay plays nothing and reports: (alsa-lib pcm error).

What exactly does it report?


Regards,
Clemens

Re: Mbox II DigiDisign

[Clemens Ladisch]

rmgls@free.fr wrote:
> on jeudi 22 novembre 2007 Clemens Ladisch" <cladisch@fastmail.net wrote:
> >> aplay plays nothing and reports: (alsa-lib pcm error).
> 
> > What exactly does it report?
> 
> it reports
> 
> segfault!

Does this also happen when you run "aplay -D plughw coq.wav"?

> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0xb7cfb6b0 (LWP 21167)]
> 0xb7f0389c in ?? () from /usr/lib/libasound.so.2
> (gdb) bt
> #0  0xb7f0389c in ?? () from /usr/lib/libasound.so.2
> #1  0x00038007 in ?? ()
> ...
> 
> if needed i'll build a non stripped aplay.

That would be helpful.


Regards,
Clemens