card
Private info for specified board
chan
Channel whose stereo setting will be adjusted
val
New sample size, use the AFMT_xxx
constants
Helper function for the SNDCTL_DSP_CHANNELS
and SNDCTL_DSP_STEREO
ioctls. OSS semantics
demand that all audio operations halt (if they are not already
halted) when SNDCTL_DSP_CHANNELS
or SNDCTL_DSP_STEREO is given.
This function halts all audio operations for the given channel
chan
, and then calls via_chan_pcm_fmt to set the audio hardware
to enable or disable stereo.