Add basic backlight percentage support

At the moment linux only, but will add support for OpenBSD as well.
2018-05-22 12:40:31 +02:00
1 parent cbbf59fd3d
commit 37724ac2c3
@@ -12,6 +12,8 @@ static const char unknown_str[] = "n/a";
 /*
 * function             description                     argument (example)
 *
+ * backlight_perc       backlight percentage            device name
+ *                                                      (intel_backlight)
 * battery_perc         battery percentage              battery name (BAT0)
 *                                                      NULL on OpenBSD
 * battery_state        battery charging state          battery name (BAT0)