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alsa
Luke Bonham edited this page Mar 2, 2017
·
58 revisions
Shows ALSA volume.
local volume = lain.widget.alsa()
Variable | Meaning | Type | Default |
---|---|---|---|
timeout |
Refresh timeout seconds | number | 5 |
cmd |
Alsa mixer command | string | "amixer" |
channel |
Mixer channel | string | "Master" |
togglechannel |
Toggle channel | string | nil |
settings |
User settings | function | empty function |
cmd
is useful if you need to pass additional arguments to amixer. For instance, you may want to define cmd = "amixer -c X"
in order to set amixer with card X
.
settings
can use the following variables:
Variable | Meaning | Type | Values |
---|---|---|---|
volume_now.level |
Volume level | number | 0-100 |
volume_now.status |
Device status | string | "on", "off" |
Variable | Meaning | Type |
---|---|---|
widget |
The widget | wibox.widget.textbox |
channel |
ALSA channel | string |
update |
Update widget
|
function |
In case mute toggling can't be mapped to master channel (this happens, for instance, when you are using an HDMI output), define togglechannel as your S/PDIF device. You can get the device ID with scontents
command.
For instance, if card number is 1 and S/PDIF number is 3:
$ amixer -c 1 scontents
Simple mixer control 'Master',0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 255
Front Left: 255 [100%]
Front Right: 255 [100%]
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'IEC958',1
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'IEC958',2
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'IEC958',3
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
you have to set togglechannel = "IEC958,3"
.
If you want buttons, just add the following after your widget in rc.lua
.
volume.widget:buttons(awful.util.table.join(
awful.button({}, 1, function() -- left click
awful.spawn(string.format("%s -e alsamixer", terminal))
end),
awful.button({}, 2, function() -- middle click
awful.spawn(string.format("%s set %s 100%%", volume.cmd, volume.channel))
volume.update()
end),
awful.button({}, 3, function() -- right click
awful.spawn(string.format("%s set %s toggle", volume.cmd, volume.togglechannel or volume.channel))
volume.update()
end),
awful.button({}, 4, function() -- scroll up
awful.spawn(string.format("%s set %s 1%%+", volume.cmd, volume.channel))
volume.update()
end),
awful.button({}, 5, function() -- scroll down
awful.spawn(string.format("%s set %s 1%%-", volume.cmd, volume.channel))
volume.update()
end)
))
You can control the widget with keybindings like these:
-- ALSA volume control
awful.key({ altkey }, "Up",
function ()
os.execute(string.format("amixer set %s 1%%+", volume.channel))
volume.update()
end),
awful.key({ altkey }, "Down",
function ()
os.execute(string.format("amixer set %s 1%%-", volume.channel))
volume.update()
end),
awful.key({ altkey }, "m",
function ()
os.execute(string.format("amixer set %s toggle", volume.togglechannel or volume.channel))
volume.update()
end),
awful.key({ altkey, "Control" }, "m",
function ()
os.execute(string.format("amixer set %s 100%%", volume.channel))
volume.update()
end),
awful.key({ altkey, "Control" }, "0",
function ()
os.execute(string.format("amixer set %s 0%%", volume.channel))
volume.update()
end),
where altkey = "Mod1"
.