[Soekris] [RFC][PATCH] LED Class support for Soekris net48xx

[Jim Cromie]

Chris Boot wrote:
> Chris Boot wrote:
>> After many years using Linux and hanging about on LKML without having 
>> done much actual kernel hacking, I've decided to have a go! The 
>> module below adds LED Class device support for the Soekris net48xx 
>> Error LED. Tested only on a net4801, but should work on a net4826 as 
>> well. I'd love to find a way of detecting a Soekris net48xx device 
>> but there is no DMI or any Soekris-specific PCI devices.
>
> It has made its way into 2.6.18-rc1-mm1 now, so if any of you are 
> willing to try it I'd be grateful! It particularly needs testing on a 
> net4826.
>
> Simply enable LEDS_CLASS and SCx200_GPIO support (modules work), 
> enable a LED trigger like LEDTRIG_HEARTBEAT, and do the following:
>
> echo heartbeat > /sys/class/leds/net48xx:error/trigger
>
works here (4801), after modprobing.
These also worked ;
echo none >
echo ide-disk >

Its a tiny issue, but when I sent none to turn off the previous setting 
(dont remember which)
the led stopped flashing (ok), and stayed on (BAD).   Echoing none 
should probably
turn the led off too, not just leave it as is.

> That should make your net48xx have a LED heartbeat that is tied to the 
> load average...
>
> Alternatively you can just do the following to turn on/off from 
> userspace instead of using the /dev/gpio devices:
>
> echo 0 > /sys/class/leds/net48xx:error/brightness
> echo 1 > /sys/class/leds/net48xx:error/brightness
>
these work too.


> Enjoy!
>
woo hoo!
Its a small thing really, but its still nice when 2 new pieces of code 
come together
for the 1st time, and just work together correctly.

> Chris 
>

jimc