audio control with hardware media keys

config.def.h

@@ -1,5 +1,7 @@
 /* See LICENSE file for copyright and license details. */
 
+#include <X11/XF86keysym.h>
+
 /* appearance */
 #if ROUNDED_CORNERS_PATCH
 static const unsigned int borderpx       = 0;   /* border pixel of windows */
@@ -850,10 +852,31 @@ static Key on_empty_keys[] = {
 };
 #endif // ON_EMPTY_KEYS_PATCH
 
+/* up volume */
+static const char *upvolcmd[] =
+	{ "/usr/bin/amixer", "set", "Master", "5%+", NULL };
+
+/* down volume */
+static const char *downvolcmd[] =
+	{ "/usr/bin/amixer", "set", "Master", "5%-", NULL };
+
+/* toggle volume */
+static const char *togglevolcmd[] =
+	{ "/usr/bin/amixer", "set", "Master", "toggle", NULL };
+
+/* toggle microphone */
+static const char *togglemiccmd[] =
+	{ "/usr/bin/amixer", "set", "Capture", "toggle", NULL };
+
+
 static Key keys[] = {
 	/* modifier                     key            function                argument */
+	{ 0,                            XF86XK_AudioRaiseVolume, spawn,        { .v = upvolcmd }   },
+	{ 0,                            XF86XK_AudioLowerVolume, spawn,        { .v = downvolcmd } },
+	{ 0,                            XF86XK_AudioMute, spawn,               { .v = togglevolcmd } },
+	{ 0,                            XF86XK_AudioMicMute, spawn,            { .v = togglemiccmd } },
 	#if KEYMODES_PATCH
-	{ MODKEY,                       XK_Escape,     setkeymode,             {.ui = COMMANDMODE} },
+	{ MODKEY,                       XK_Escape,     setkeymode,             {.ui = COMMANDMODE } },
 	#endif // KEYMODES_PATCH
 	{ MODKEY,                       XK_p,          spawn,                  {.v = roficmd } },
 	{ MODKEY|ShiftMask,             XK_Return,     spawn,                  {.v = termcmd } },