Re: [PATCH] leds: Further document parameters for blink_set()

From: Pavel Machek
Date: Sun Jun 21 2009 - 02:44:57 EST


On Thu 2009-06-11 14:17:48, Mark Brown wrote:
> The documentation for the parameters of blink_set() was a bit hard
> to find so put some where I'd expected to find it.
>
> Signed-off-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> ---
> include/linux/leds.h | 4 +++-
> 1 files changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/include/linux/leds.h b/include/linux/leds.h
> index 376fe07..c7f0b14 100644
> --- a/include/linux/leds.h
> +++ b/include/linux/leds.h
> @@ -45,7 +45,9 @@ struct led_classdev {
> /* Get LED brightness level */
> enum led_brightness (*brightness_get)(struct led_classdev *led_cdev);
>
> - /* Activate hardware accelerated blink */
> + /* Activate hardware accelerated blink, delays are in
> + * miliseconds and if none is provided then a sensible default
> + * should be chosen. */
> int (*blink_set)(struct led_classdev *led_cdev,
> unsigned long *delay_on,
> unsigned long *delay_off);

What a strange calling convention. Does it return data in
*delay_on/off ? Should that also be documented?
Pavel
--
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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