Lines Matching defs:backlight
18 * sony_acpi,... can take care about backlight brightness.
21 * which driver should handle the backlight.
30 #include <linux/backlight.h>
111 * ACPI backlight device is used. This flag will definitively break
112 * the backlight interface (even the vendor interface) until next
159 * These models have a working acpi_video backlight control, and using
160 * native backlight causes a regression where backlight does not work
198 /* The native backlight controls do not work on some older machines */
300 /* Non win8 machines which need native backlight nevertheless */
460 * results in a dangling SBIOS request for backlight change for some
461 * reason, causing the backlight to switch to ~2% once per boot on the
611 * Desktops which falsely report a backlight and which our heuristics
643 struct backlight_device *backlight = bd;
646 if (backlight->props.type == BACKLIGHT_RAW &&
654 * Determine which type of backlight interface to use on this system,
658 * 1) Is the acpi-video backlight interface supported ->
708 * Set the preferred backlight interface type based on DMI info.
715 /* Remove acpi-video backlight interface if it is no longer desired */