Hello! Can you help me? I have got the sound device that uses on the board Xmos chip. The device is connected to the pc that running Linux. I use ALSA as the sound subsystem in my OS. The device is detected and subscribed in the OS, but i can`t admine it in either alsamixer or any other sound apllication. When I try to choose it[sound card] in alsa mixer I get the error: "Protocol error". Sometimes I get kernel panic.(kernel 3.6.10/3.7.1) It seems there is no support for this sound chip in the ALSA system, can you help me how can I enable it, may be someone who did it before can share the modificated source code with me?(I use ALSA 1.0.25 from the source)
Hehe, welcome to linux. But unfortunately you will not get working this board under linux.
Linux driver snd_usb_audio not fully implemented Usb Audio 2.0 specification (still, kernel 3.11.2-gentoo):
1. Linux doesn't implemented RANGE mixer values
2. Some problem with mixer names.
And other stuff. Only 2 solution:
1. Ignore USB audio 2.0 specification and write your own Linux driver + modification for XMOS firmware
2. Finish implementation of usb audio 2.0 specification for linux driver
I moved in 2 way, but i haven't enough time to finish this work.