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| author | Márton Németh <nm127@freemail.hu> | 2007-10-31 15:07:12 +0100 |
|---|---|---|
| committer | Richard Purdie <rpurdie@rpsys.net> | 2008-02-07 09:49:38 +0000 |
| commit | 4c79141d28bc290ae307e3f81f5bc909c26faf6e (patch) | |
| tree | 9c6dc51c441dfc1c84cc27ece43087515c06967c /include/linux/leds.h | |
| parent | 6c152beefbf90579d21afc4f7e075b1f801f9a75 (diff) | |
| download | blackbird-op-linux-4c79141d28bc290ae307e3f81f5bc909c26faf6e.tar.gz blackbird-op-linux-4c79141d28bc290ae307e3f81f5bc909c26faf6e.zip | |
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.h | 5 |
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 */ |
