Lines Matching refs:backlight
38 #include <linux/backlight.h>
115 "set this to 0 to disable keyboard backlight, "
621 /* the device uses 1-based values, while the backlight subsystem uses
917 * backlight framework for which brightness values are 0-based.
1028 /* brightness levels are 1-based, while backlight ones are 0-based */
1378 pr_err("couldn't set up keyboard backlight function (%d)\n",
1755 /* Keyboard backlight feature */
1867 pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n",
1872 /* verify the kbd backlight presence, some of these handles are not used
1873 * for keyboard backlight only
1893 * the keyboard backlight being turned off.
1902 dprintk("no backlight keyboard found\n");
3142 pr_warn("unable to register backlight device\n");
4159 /* sync the backlight device status */