#255 Toshiba Multimedia Center - 1 channel detected

[Carlos Gonzalez]

I have a Toshiba Multimedia Center, a box with a sound
card (5.1, 24bit), an usb hub and a ethernet port.

It is detected by usb_snd_audio, but in alsamixer there
is only 1 channel (PCM)

In lsusb I can see all the channels detected

Thank you!