add dwm config

content/post/use-brightness-and-volume-keys-in-dwm.md

@@ -0,0 +1,72 @@
+---
+title: "Use Brightness and Volume Keys in Dwm"
+date: 2021-03-03T06:53:22Z
+lastmod: 2022-04-29T06:53:22Z
+draft: false 
+keywords: [dwm brightness volume]
+description: ""
+tags: [dwm]
+categories: [linux]
+author: ""
+
+# You can also close(false) or open(true) something for this content.
+# P.S. comment can only be closed
+comment: false
+toc: true 
+autoCollapseToc: false
+postMetaInFooter: true 
+hiddenFromHomePage: false
+# You can also define another contentCopyright. e.g. contentCopyright: "This is another copyright."
+contentCopyright: false
+reward: false
+mathjax: false
+mathjaxEnableSingleDollar: false
+mathjaxEnableAutoNumber: false
+
+# You unlisted posts you might want not want the header or footer to show
+hideHeaderAndFooter: false
+
+# You can enable or disable out-of-date content warning for individual post.
+# Comment this out to use the global config.
+#enableOutdatedInfoWarning: false
+
+flowchartDiagrams:
+  enable: false
+  options: ""
+
+sequenceDiagrams: 
+  enable: false
+  options: ""
+
+---
+
+Requires `pulseaudio pavucontrol alsa-lib alsa-utils acpilight`
+
+Actual requirements may vary depending on your configuration. I am only writing what worked for me.
+<!--more-->
+
+Edit `config.h`
+
+```c
+#include <X11/XF86keysym.h>
+ 
+/* volume keys*/
+static const char *upvol[] = { "/usr/bin/pactl", "set-sink-volume", "0", "+5%", NULL };
+static const char *downvol[] = { "/usr/bin/pactl", "set-sink-volume", "0", "-5%", NULL };
+static const char *mutevol[] = { "/usr/bin/pactl", "set-sink-mute", "0", "toggle", NULL };
+ 
+/* backlight */
+static const char *brightnessup[] = { "sudo", "xbacklight", "-inc"m "5", NULL };
+static const char *brightnessdown[] = { "sudo", "xbacklight", "-dec", "5", NULL };
+```
+
+Append the following lines in `static Key keys[]` array
+```c
+static Key keys[] = {
+    { 0, XF86XK_AudioLowerVolume, spawn, {.v = downvol} },
+    { 0, XF86XK_AudioMute, spawn, {.v = mutevol }},
+    { 0, XF86XK_AudioRaiseVolume, spawn, {.v = upvol} },
+    { 0, XF86XK_MonBrightnessUp, spawn, {.v = brightnessup} },
+    { 0, XF86XK_MonBrightnessDown, spawn, {.v = brightnessdown} },
+}; 
+```