[Voyage-linux] Voyage-MPD; snd-usb-audio: probe of 5-8:1.0 failed with error -5

[z0rk]

 Linux voyage 3.14.12-voyage-rt-rt9 #1 SMP PREEMPT RT Fri Apr 17 15:10:46 HKT
2015 i686 GNU/Linux

USB DAC turned on and connected

dmesg
[  283.995809] usb 5-8: USB disconnect, device number 4
[  294.335129] usb 5-8: new high-speed USB device number 5 using ehci-pci
[  294.450184] usb 5-8: New USB device found, idVendor=20b1, idProduct=000a
[  294.450871] usb 5-8: New USB device strings: Mfr=1, Product=3,
SerialNumber=0
[  294.451628] usb 5-8: Product: xCORE USB Audio 2.0
[  294.452135] usb 5-8: Manufacturer: XMOS
[  294.453256] cannot find the slot for index 0 (range 0-0), error: -16
[  294.453918] cannot create card instance 0
[  294.454456] snd-usb-audio: probe of 5-8:1.0 failed with error -5

Only my internal audio device is recognized

aplay -l
root at voyage:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC9228 Analog [STAC9228 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

I thought this thread might help

http://voyage-linux.34677.n3.nabble.com/voyage-mpd-0-10-0-does-not-recognize-Combo384-td4026314.html#a4026316

I removed the line options snd-usb-audio index=0 from
/etc/modprobe.d/alsa-base.conf. Now I get 

aplay -l
root at voyage:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC9228 Analog [STAC9228 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: x20 [xCORE USB Audio 2.0], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

So the device is recognized, BUT there's still no audio playing through it.
I've tried to use alsamixer and F6 to set the sound card device to xCore
USB, but still no audio is playing through it.

I've also tried to change the line in /etc/modprobe.d/alsa-base.conf to
options snd-usb-audio index=1, but the result is exactly the same.

Any help is appreciated.

Cheers







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