platform/x86/toshiba_acpi.c

34 #include <linux/backlight.h>
557 	 * Check for keyboard backlight timeout max value,
558 	 * previous kbd backlight implementation set this to
566 	/* Get the current keyboard backlight mode */
584 		pr_err("ACPI call to set KBD backlight status failed\n");
601 		pr_err("ACPI call to get KBD backlight status failed\n");
615 	/* Check the keyboard backlight state */
618 		pr_err("ACPI call to get the keyboard backlight failed\n");
635 	/* Set the keyboard backlight state */
1816 /* Keyboard backlight work */
1876 	/* Check for supported modes depending on keyboard backlight type */
1890 	 *	Auto - KBD backlight turns off automatically in given time
1891 	 *	FN-Z - KBD backlight "toggles" when hotkey pressed
1892 	 *	ON   - KBD backlight is always on
1893 	 *	OFF  - KBD backlight is always off
1919 		 * keyboard (type 2) do not generate the keyboard backlight
1924 		 * backlight mode and the *notify function will set the
1928 		 * backlight work to update the sysfs entries and emulate the
2498 	/* Notify LED subsystem about keyboard backlight change */
2505 	/* Emulate the keyboard backlight event */
2966 	 * Some machines don't support the backlight methods at all, and
2968 	 * so only register the backlight device if the backlight method
2975 	 * If transflective backlight is supported and the brightness is zero
2977 	 * activate the transflective backlight, making the LCD appear to be
2984 		pr_debug("Backlight method is read-only, disabling backlight support\n");
3006 		pr_err("Could not register toshiba backlight device\n");
3155 		pr_cont(" backlight");
3163 		pr_cont(" transflective-backlight");
3167 		pr_cont(" keyboard-backlight");
3260  * (/sys/class/backlight/intel_backlight) instead.
3358 	/* Determine whether or not BIOS supports transflective backlight */
3387 	 * and the keyboard backlight operation mode is set to FN-Z
3388 	 * or we detect a second gen keyboard backlight
3540 	case 0x92: /* Keyboard backlight mode changed */
3546 		/* Notify LED subsystem about keyboard backlight change */