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| author | Esben Haabendal <eha@doredevelopment.dk> | 2011-05-24 17:13:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-25 08:39:49 -0700 |
| commit | fff26f8141145e01eae8f4d6e642ac8a0d500158 (patch) | |
| tree | 4da2d503bbb242118fdde980e045779846864a14 /drivers/leds/led-class.c | |
| parent | 5ff77428e55c152ef75a6967f3266db79926fbde (diff) | |
| download | blackbird-obmc-linux-fff26f8141145e01eae8f4d6e642ac8a0d500158.tar.gz blackbird-obmc-linux-fff26f8141145e01eae8f4d6e642ac8a0d500158.zip | |
leds: support automatic start of blinking with ledtrig-timer
By setting initial values blink_delay_on and blink_delay_off in a
led_classdev struct, this change starts the blinking when the led is
initialized.
With this patch, you can initialize blink_delay_on and blink_delay_off in
led_classdev with default_trigger set to "timer", and the led will start
up blinking. The current ledtrig-timer implementation ignores any initial
blink_delay_on/blink_delay_off settings, and requires setting
blink_delay_on/blink_delay_off (typically from userspace) before the led
blinks.
Signed-off-by: Esben Haabendal <eha@doredevelopment.dk>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/leds/led-class.c')
| -rw-r--r-- | drivers/leds/led-class.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c index d5a4ade88991..dc3d3d83191a 100644 --- a/drivers/leds/led-class.c +++ b/drivers/leds/led-class.c @@ -131,7 +131,8 @@ static void led_set_software_blink(struct led_classdev *led_cdev, if (!led_cdev->blink_brightness) led_cdev->blink_brightness = led_cdev->max_brightness; - if (delay_on == led_cdev->blink_delay_on && + if (led_get_trigger_data(led_cdev) && + delay_on == led_cdev->blink_delay_on && delay_off == led_cdev->blink_delay_off) return; |
