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SubjectRe: sysfs permitions on class leds
On Fri, May 25, 2007 at 03:37:46PM -0300, Rodrigo Pereira wrote:
> (sorry my English)
> I'm helping M?rton N?meth in a experimental mail led driver
> leds-clevo-mail.c for clevo laptops and I have problems with this
> driver:
> this files
> /sys/class/<ledname>trigger, /sys/class/<ledname>/dalay_on and
> /sys/class/<ledname>/delay_off are created as 644 permissions. Also
> ROOT controls the led. I think write udev rules but my rules don't
> change this permissions.
> The clevo mail led is a trigger led (time-trigger) for blinks the led
> when a new mail arrives.
> How can I change the permissions of the sysfs objects in runtime or
> userspace?

Just do a 'chmod' on the sysfs file. If you have the proper permissions
to do that, it will stick for as long as the sysfs file stays around.

hope this helps,

greg k-h
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