[LAU] CM6206 S/PDIF JACK input

Hello LA land! 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