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amixer: Expand on channel docs in man page

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Add missing channel params to the amixer man page. Also call out that
the channel param must come before the value to take effect.

signed-off-by: Matthew Campbell <mcampbell@izotope.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Matt Campbell 2021-02-14 11:47:19 -05:00 committed by Jaroslav Kysela
parent a4cff92223
commit c47e93fa7e
1 changed files with 5 additions and 4 deletions
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9
amixer/amixer.1
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@ -44,11 +44,12 @@ value, respectively.
The parameters \fIcap, nocap, mute, unmute, toggle\fP are used to
change capture (recording) and muting for the group specified.
The optional modifiers can be put as extra parameters to specify
the stream direction or channels to apply.
The optional modifiers can be put as extra parameters before the value to
specify the stream direction or channels to apply.
The modifiers \fIplayback\fP and \fIcapture\fP specify the stream,
and the modifiers \fIfront, rear, center, woofer\fP are used to specify
channels to be changed.
and the modifiers \fIfront, frontleft, frontright, frontcenter, center,
rear, rearright, rearleft, woofer\fP are used to specify channels to be
changed.
A simple mixer control must be specified. Only one device can be controlled
at a time.