I got a Startech USB audio device based on the C-Media CM6206 purely in the hope of being able to use its S/PDIF input under JACK. It runs JACK just fine, I just don't know how I might access the SPDIF input (or even the line-in, just out of interest) from under JACK?
When I run alsamixer and switch to viewing the capture ports of the cm6206 there are 4 capture channels - PCM, Line, Mic and S/PDIF In but under JACK I only get 2 capture ports which are the L and R analogue mic input channels. I can also see the light emitting from the S/PDIF out port so I am confident the S/PDIF should work and hopefully under JACK.
I'm running AV Linux 6
arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC262 Analog [ALC262 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 1: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 2: Device [USB Sound Device], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
cat /proc/asound/devices
1: : sequencer
2: [ 0- 3]: digital audio playback
3: [ 0- 0]: digital audio playback
4: [ 0- 0]: digital audio capture
5: [ 0] : control
6: [ 1- 1]: digital audio playback
7: [ 1- 1]: digital audio capture
8: [ 1- 0]: digital audio playback
9: [ 1- 0]: digital audio capture
10: [ 1] : control
11: [ 2- 0]: digital audio playback
12: [ 2- 0]: digital audio capture
13: [ 2] : control
33: : timer
Thanks!
Dan
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