sysfs permitions on class leds

[Rodrigo Pereira]

(sorry my English)

I'm helping Márton Németh  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?

the code of this driver is found at
http://sourceforge.net/projects/clevo-mailled/

Thank you.

Rodrigo Pereira
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