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

[Joshua ChaitinPollak]

I don't know anything about the scx200_gpio drivers, It was  
recommended to me on this mailing list to avoid it. I'm not sure why,  
I just did.

I was referring to this driver:

http://www.meduna.org/sw_gpio_en.html (for Linux 2.6)
http://soekris.hejl.de/ (original version for 2.4)

Which is what I have been using.

Anyway, the code in those drivers should detail how the 4501/4801  
differ. I have used both of these versions to toggle the LED on the  
4526, and they work on the 45xx and 48xx families equally well, so I  
would refer to that code.

-Josh


On Jul 7, 2006, at 5:26 PM, Chris Boot wrote:

> Hullo,
>
> Yep, I'm using scx200_gpio already, and as long as the error LED is  
> accessed using minor 20 on the 4826 (I know it is on the 4801) then  
> I'm doing well! :-)
>
> If someone can confirm the above I'll rename my driver net48xx_led.  
> Should be making its way to linux-kernel and here shortly.
>
> Now if only there was a way of detecting a net48{01,26}...
>
> Chris
>
> Joshua ChaitinPollak wrote:
>> Ah, I see! Well, that seems like a worthy effort! I'm not sure  
>> about the differences between the different boards, but I do know  
>> that the existing GPIO/LED driver works on the net4526, and I  
>> believe the same driver also works for the 4801 series, so you  
>> might take a look at that!
>> On Jul 7, 2006, at 5:10 PM, Chris Boot wrote:
>>> 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
>>>>> http://lists.soekris.com/mailman/listinfo/soekris-tech
>>>>>
>>>
>>>
>>> --Chris Boot
>>> bootc at bootc.net
>>> http://www.bootc.net/
>>>
>> --Joshua ChaitinPollak
>> Software Engineer
>> Kiva Systems
>
>
> -- 
> Chris Boot
> bootc at bootc.net
> http://www.bootc.net/
>

-- 
Joshua ChaitinPollak
Software Engineer
Kiva Systems