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mixer(8): Update FILES section
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Browse source 
While here, change "N" to "X" to match sndctl.8's notation.

Sponsored by:	The FreeBSD Foundation
MFC after:	4 days
Reviewed by:	emaste
Differential Revision:	https://reviews.freebsd.org/D53503
This commit is contained in:
Christos Margiolis 2025-11-06 13:56:36 +01:00
parent 2a8a6179eb
commit 26e7e9a6a2
1 changed files with 18 additions and 26 deletions
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44
usr.sbin/mixer/mixer.8
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@ -19,7 +19,7 @@
.\" OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
.\" THE SOFTWARE.
.\"
.Dd August 14, 2024
.Dd October 31, 2025
.Dt MIXER 8
.Os
.Sh NAME
@ -28,7 +28,7 @@
.Sh SYNOPSIS
.Nm
.Op Fl f Ar device
.Op Fl d Ar pcmN | N Op Fl V Ar voss_device:mode
.Op Fl d Ar pcmX | X Op Fl V Ar voss_device:mode
.Op Fl os
.Op Ar dev Ns Op Cm \&. Ns Ar control Ns Op Cm \&= Ns Ar value
.Ar ...
@ -47,10 +47,10 @@ The options are as follows:
.It Fl a
Print the values for all mixer devices available in the system
.Pq see Sx FILES .
.It Fl d Ar pcmN | N
.It Fl d Ar pcmX | X
Change the default audio card to
.Ar pcmN ,
where N is the unit number (e.g for pcm0, the unit number is 0).
.Ar pcmX ,
where X is the device's unit number (e.g for pcm0, the unit number is 0).
See
.Sx EXAMPLES
on how to list all available audio devices in the system.
@ -246,30 +246,22 @@ makes
the only recording device.
.El
.Sh FILES
.Bl -tag -width /dev/mixerN -compact
.It Pa /dev/mixerN
The mixer device, where
.Ar N
is the number of that device, for example
.Ar /dev/mixer0 .
PCM cards and mixers have a 1:1 relationship, which means that
.Bl -tag -width "/dev/mixerX" -compact
.It Pa /dev/mixerX
The mixer device, where X is the unit number of that device,
.Pa /dev/dsp*
devices and
.Pa /dev/mixer*
devices have a 1:1 relationship, which means that, for instance,
.Pa /dev/mixer0
is the mixer for
.Pa /dev/pcm0
and so on.
By default,
is the mixer device for
.Pa /dev/dsp0 .
.It /dev/mixer
Alias to the default device's mixer device.
.Nm
prints both the audio card's number and the mixer associated with it
in the form of
.Ar pcmN:mixer .
The
.Pa /dev/mixer
file, although it does not exist in the filesystem, points to the default
mixer device and is the file
.Nm
opens when the
opens this when the
.Fl f Ar device
option has not been specified.
option is not specified.
.El
.Sh EXAMPLES
List all available audio devices in the system: