Messages in this thread | | | Date | Sun, 01 Sep 2013 23:48:34 -0500 | From | Ian Pilcher <> | Subject | Re: device_create_file returns 0 but doesn't work |
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On 09/01/2013 06:38 PM, Ian Pilcher wrote: > I am trying to add an additional sysfs attribute to a device (LED) that > is created by another driver. (My ultimate goal is to provide a way for > a userspace application to use the functionality provided by > led_blink_set, which doesn't currently seem to be possible.)
Turns out it is possible, with the LED timer trigger, so this issue is now moot.
> > The kernel module code that sets up all the GPIOs & LEDs in my NAS is > at: > > http://pastebin.com/TJZGww8T > > The call to device_create_file is at line 373. > > device_create_file is returning 0, but the "foo" attribute is not being > created. ("find /sys -name '*foo*'" doesn't find anything, so I'm not > just looking in the wrong place.)
Still rather odd that it doesn't work, however, since ledtrig-timer.c seems to do pretty much the same thing. Oh well.
-- ======================================================================== Ian Pilcher arequipeno@gmail.com Sometimes there's nothing left to do but crash and burn...or die trying. ========================================================================
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