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Updated Home (markdown)
[etc/awesome.git] / alsa.md
1 Shows and controls alsa volume with a textbox.
2
3         myvolume = lain.widgets.alsa()
4
5 * Left click: Launch `alsamixer` in your `terminal`.
6 * Right click: Mute/unmute.
7 * Scroll wheel: Increase/decrase volume.
8
9 The function takes a table as optional argument, which can contain:
10
11 Variable | Meaning | Type | Default
12 --- | --- | --- | ---
13 `channel` | Mixer channel | string | "Master" 
14 `step` | Step at which volume is increased/decreased | string | "1%"
15 `header` | Text to show before value | string | " Vol "
16 `header_color` | Header color | string | `beautiful.fg_normal` or "#FFFFFF"
17 `color` | Value color | string | `beautiful.fg_focus` or "#FFFFFF"
18
19 and outputs the following table:
20
21 Variable | Meaning | Type
22 --- | --- | --- 
23 `widget` | The widget | `wibox.widget.textbox`
24 `channel` | Alsa channel | string
25 `step` | Increase/decrease step | string
26 `notify` | Update `widget` | function
27
28 Finally, you can control the widget with key bindings like these:
29
30     -- Volume control
31     awful.key({ altkey }, "Up",
32     function ()
33         awful.util.spawn("amixer sset " .. volume.channel .. " " .. volume.step .. "+")
34         volume.notify()
35     end),
36     awful.key({ altkey }, "Down",
37     function ()
38         awful.util.spawn("amixer sset " .. volume.channel .. " " .. volume.step .. "-")
39         volume.notify()
40     end),
41     awful.key({ altkey }, "m",
42     function ()
43         awful.util.spawn("amixer set Master playback toggle")
44         volume.notify()
45     end),
46     awful.key({ altkey, "Control" }, "m", 
47     function ()
48         awful.util.spawn("amixer set Master playback 100%", false )
49         volume.notify()
50     end),
51
52 where `altkey = "Mod1"`.