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authorMárton Németh <nm127@freemail.hu>2007-10-31 15:07:12 +0100
committerRichard Purdie <rpurdie@rpsys.net>2008-02-07 09:49:38 +0000
commit4c79141d28bc290ae307e3f81f5bc909c26faf6e (patch)
tree9c6dc51c441dfc1c84cc27ece43087515c06967c /include/linux/leds.h
parent6c152beefbf90579d21afc4f7e075b1f801f9a75 (diff)
leds: Add support for hardware accelerated LED flashing
Extends the leds subsystem with a blink_set() callback function which can be optionally implemented by a LED driver. If implemented, the driver can use the hardware acceleration for blinking a LED. Signed-off-by: Márton Németh <nm127@freemail.hu> Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Diffstat (limited to 'include/linux/leds.h')
-rw-r--r--include/linux/leds.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 00f89fd6c52a..0201f6f51cea 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -38,6 +38,11 @@ struct led_classdev {
void (*brightness_set)(struct led_classdev *led_cdev,
enum led_brightness brightness);
+ /* Activate hardware accelerated blink */
+ int (*blink_set)(struct led_classdev *led_cdev,
+ unsigned long *delay_on,
+ unsigned long *delay_off);
+
struct device *dev;
struct list_head node; /* LED Device list */
char *default_trigger; /* Trigger to use */