[alsa-devel] get two mono channel from stereo line

Hi,

We have a beagleboard with one audio line-in and one audio line-out. From the documentation both are stereo line. Now we want to use four mono audio line for our system. two input from radio and microphone, two output to radio and speaker. We use ALSA and we would like to know how we can achieve this either by plugin or programming alsa.

Thank you for your help

Arif