Via 686/8233/8235 Audio Driver for Linux
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via_chan_set_stereo

Name

via_chan_set_stereo --  Enable or disable stereo for a DMA channel

Synopsis

int via_chan_set_stereo (struct via_info * card, struct via_channel * chan, int val);

Arguments

card

Private info for specified board

chan

Channel whose stereo setting will be adjusted

val

New sample size, use the AFMT_xxx constants

Description

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.

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