BT87x card - audio not working

BT87x card - audio not working

[Ron Gage]

Greetings:

I have a BT878 based capture card that is working wonderfully, except 
for audio.  The card is an Osprey 230 from Viewcast.  The card is 
supposed to support digital audio input - no need for a loopback cable 
from the card to the PC's line in.

The card is registering the audio device with the ALSA subsystem but no 
matter what I try, I can not get audio from the card into the PC.  I 
know that audio is going to the card as I have checked the signal 
presence at the input cable.

Kernel is 2.6.26.5  generic with no additional patches.  OS is Slackware 12.

The card is showing up in /proc/asound:
 root@video:/proc/asound# cat devices
  1:        : sequencer
 32: [ 1]   : control
 33:        : timer
 56: [ 1- 0]: digital audio capture
 57: [ 1- 1]: digital audio capture
root@video:/proc/asound#
root@video:/proc/asound/card1# cat id
Bt878
root@video:/proc/asound/card1/pcm0c# cat info
card: 1
device: 0
subdevice: 0
stream: CAPTURE
id: Bt87x Digital
name: Bt87x Digital
subname: subdevice #0
class: 0
subclass: 0
subdevices_count: 1
subdevices_avail: 1
root@video:/proc/asound/card1/pcm0c#


Can anyone provide any clues here?

Thanks!

Ron Gage


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