Re: [Alsa-user] USB Quattro PCM problems

[Clemens L. <cl...@la...>]

Austin wrote:
> Alsa initializes fine, the modules load correctly, and the midi0 interface
> comes up in /proc/asound/Quattro and /dev/snd/.  The PCM interface does not
> show up in either of those directories though.
>
> [root@gamma373-165 austin]# ls /proc/asound/Quattro/
> id  midi0  oss_mixer
>
> /var/log/messages shows the following:
> Jul 30 18:33:55 gamma373-165 kernel: usb.c: registered new driver snd-usb-audio
> Jul 30 18:33:55 gamma373-165 kernel: usbaudio: device 7 audiocontrol interface 0 has 1 input and 1 output AudioStreaming interfaces
> ...

Those "usbaudio:" messages look as if they come from the kernel's OSS
"audio" driver. Please check that "audio" does not appear in the
output of lsmod.  To prevent this module from loading, put it into
/etc/hotplug/blacklist or delete it.


HTH
Clemens