Lines Matching refs:backlight
38 #include <linux/backlight.h>
165 TP_HKEY_EV_KBD_LIGHT = 0x1012, /* Thinklight/kbd backlight */
224 TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */
1034 pr_notice("ACPI backlight control delay disabled\n");
3485 pr_info("This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver\n");
5008 * Keyboard backlight subdriver
5073 * Guessed test for keyboard backlight:
5075 * Machines with backlight keyboard return:
5080 * (XX is current backlight level)
5082 * Machines without backlight keyboard return:
6401 * Bit 3-0: backlight brightness level
6460 "trying to checkpoint backlight level to NVRAM...\n");
6478 "updated NVRAM backlight level to %u (0x%02x)\n",
6482 "NVRAM backlight level already is %u (0x%02x)\n",
6511 /* do NOT call with illegal backlight level value */
6562 "set backlight level to %d\n", value);
6584 /* sysfs backlight class ----------------------------------------------- */
6591 "backlight: attempt to set level to %d\n",
6594 /* it is the backlight class's job (caller) to handle
6736 * going to publish a backlight interface
6781 pr_info("Standard ACPI backlight interface available, not loading native one\n");
6784 pr_warn("Cannot enable backlight brightness support, ACPI is already handling it. Refer to the acpi_backlight kernel parameter.\n");
6788 pr_notice("ACPI backlight interface not available\n");
6835 pr_err("Could not register backlight device\n");
11550 "Enables backlight control when 1, disables when 0");