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| author | Hans de Goede <hdegoede@redhat.com> | 2016-01-14 09:41:47 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-01-15 22:09:07 +0100 |
| commit | 382d11639f7ca6d3ddca3a231267081bd29b45bd (patch) | |
| tree | 88e391cdb94ef4f09a128408b712c168cc628604 /include/acpi/video.h | |
| parent | ACPI / video: Fix using an uninitialized mutex / list_head in acpi_video_hand... (diff) | |
| download | linux-382d11639f7ca6d3ddca3a231267081bd29b45bd.tar.xz linux-382d11639f7ca6d3ddca3a231267081bd29b45bd.zip | |
ACPI / video: Document acpi_video_handles_brightness_key_presses() a bit
Document that acpi_video_handles_brightness_key_presses()'s return value
may change over time and should not be cached.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi/video.h')
| -rw-r--r-- | include/acpi/video.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/acpi/video.h b/include/acpi/video.h index f11d342b4567..5ca2f2c16458 100644 --- a/include/acpi/video.h +++ b/include/acpi/video.h @@ -32,6 +32,10 @@ extern int acpi_video_get_edid(struct acpi_device *device, int type, int device_id, void **edid); extern enum acpi_backlight_type acpi_video_get_backlight_type(void); extern void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type); +/* + * Note: The value returned by acpi_video_handles_brightness_key_presses() + * may change over time and should not be cached. + */ extern bool acpi_video_handles_brightness_key_presses(void); #else static inline int acpi_video_register(void) { return 0; } |