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authorHans de Goede <hdegoede@redhat.com>2016-01-14 09:41:47 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-01-15 22:09:07 +0100
commit382d11639f7ca6d3ddca3a231267081bd29b45bd (patch)
tree88e391cdb94ef4f09a128408b712c168cc628604 /include/acpi
parent14e9355363fc5bf98ba63875e117f29d1902d253 (diff)
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')
-rw-r--r--include/acpi/video.h4
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; }