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/linux-4.1.27/Documentation/acpi/
Dvideo_extension.txt30 max_brightness: Derived from the _BCL package(see below);
35 the following _BCL package:
37 Method (_BCL, 0, NotSerialized)
Dnamespace.txt157 | +-| _BCL | Method(_BCL): the backlight control method
248 example, if the _BCL method is present for an ACPI namespace node, a
/linux-4.1.27/drivers/acpi/
Dvideo.c189 u8 _BCL:1; /* Query list of brightness control levels supported */ member
976 device->cap._BCL = 1; in acpi_video_device_find_cap()