From: Greg KH <greg@kroah.com>
To: Rodrigo Pereira <rodripe@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: sysfs permitions on class leds
Date: Sat, 26 May 2007 19:45:56 -0700 [thread overview]
Message-ID: <20070527024556.GA8405@kroah.com> (raw)
In-Reply-To: <114492e40705251137k53d9c341q3430710c75408b33@mail.gmail.com>
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
prev parent reply other threads:[~2007-05-27 2:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-25 18:37 sysfs permitions on class leds Rodrigo Pereira
2007-05-27 2:45 ` Greg KH [this message]
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