[Soekris] net48xx Error LED and detecting a 48xx under Linux

[Chris Boot]

Hi there,

Linux has drivers for the GPIOs yes, but it doesn't have a driver for the new 
LEDs class system in Linux 2.6.17 and up. With this system the kernel can attach 
triggers to LEDs, like hard disk activity, a plain old timer, or fancy stuff 
like a 'heartbeat' type flashing and so on. I'm writing a driver to do just 
that. I'm just compiling the code I've written to give it a shot, but at the 
moment it's all hard-coded and assumes a net4801.

Chris

Joshua ChaitinPollak wrote:
> Linux and FreeBSD already have drivers for the LED and GPIO pins. Are  
> you trying to do something different?
> 
> On Jul 7, 2006, at 3:55 PM, Chris Boot wrote:
> 
>> Hi all,
>>
>> I'm planning on writing an LED class driver for the net4801 error  
>> LED, so just
>> wanted to get more information about a few things.
>>
>> Which Soekris devices have the error LED mapped to the same GPIO  
>> pin as the
>> 4801? Is it just the 4801 or does the 4826 work in a similar  
>> manner? What about
>> the 45xx series?
>>
>> Is there a way of detecting what type of Soekris machine we're  
>> running on? It
>> would be nice to write a proper probe routine for the functionality  
>> since we
>> don't want to randomly twiddle GPIOs on non-Soekris devices. I've  
>> looked into
>> DMI but that doesn't seem to exist. Any ideas?
>>
>> Many thanks,
>> Chris
>>
>> -- 
>> Chris Boot
>> bootc at bootc.net
>> http://www.bootc.net/
>> _______________________________________________
>> Soekris-tech mailing list
>> Soekris-tech at lists.soekris.com
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>>
> 


-- 
Chris Boot
bootc at bootc.net
http://www.bootc.net/