Can udev manage /sys/class/leds

Hi,

I've never used udev, and would like to know if it could be the solution 
for changing permission on /sys/class/leds/ attributes.

I can change permissions and ownership at startup for existing files but 
new attributes created during runtime (for instance delay_on and 
delay_off when changing the trigger to blinking) are created with root 
permission only.
I need /sys/class/leds/ attributes owned and permitted to users of group 
'led'.

Can udev manage that ?

Christophe

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