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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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