lain/alsa.md

<- widgets

Shows and controls alsa volume with a textbox.

volume = lain.widgets.alsa()

input table

Variable	Meaning	Type	Default
timeout	Refresh timeout seconds	int	5
channel	Mixer channel	string	"Master"
settings	User settings	function	empty function

settings can use the following variables:

Variable	Meaning	Type	Values
volume.level	Self explained	int	0-100
volume.status	Device status	string	"on", "off"

output table

Variable	Meaning	Type
widget	The widget	wibox.widget.textbox
notify	Force update widget	function

You can control the widget with key bindings like these:

-- Volume control
awful.key({ altkey }, "Up",
function ()
    awful.util.spawn("amixer sset Master 1%+")
    volume.notify()
end),
awful.key({ altkey }, "Down",
function ()
    awful.util.spawn("amixer sset Master 1%-")
    volume.notify()
end),
awful.key({ altkey }, "m",
function ()
    awful.util.spawn("amixer set Master playback toggle")
    volume.notify()
end),
awful.key({ altkey, "Control" }, "m", 
function ()
    awful.util.spawn("amixer set Master playback 100%", false )
    volume.notify()
end),

where altkey = "Mod1".