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Re: mixer ioctls on sound devices
On Wed, 30 Jan 2008, Stephen Borrill wrote:
However, it might be felt that this is not the right place to do this pass
through (i.e. should we natively support mixer operations on /dev/sound0?).
Perhaps it should be in compat/ossaudio/ossaudio.c or even
compat/linux/common/linux_ioctl.c. Or perhaps audio_ioctl should return
EPASSTHROUGH in such a situation.
We've spoken about this privately, but I should probably say this on the
list anyway for an audit trail..
I have concerns with making our own audio subsystem behave this way, as it
makes mixer controls via /dev/sound behave differently than /dev/mixer
For Linux compatibility, we might be better off calling mixer_ioctl
directly from ossaudio rather than using ioctlf on the currently open
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