https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=246208
Bug ID: 246208
Summary: dev/sound: SNDCTL_DSP_GETPLAYVOL does not work on
vchans
Product: Base System
Version: 12.1-RELEASE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: kevinz5...@gmail.com
The ioctl SNDCTL_DSP_GETPLAYVOL gets the volume of the given device, see:
http://manuals.opensound.com/developer/SNDCTL_DSP_GETPLAYVOL.html
This ioctl works on clone devices (e.g. /dev/dsp, /dev/dsp0, /dev/dsp0) but
returns EINVAL for vchan devices (e.g. /dev/dsp0.vp0).
It seems to me that this ioctl should work on vchans as well, for example, to
query the volume on virtual channels.
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