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

Chris Boot
2006-07-23T13:46:58Z

Eric Lammerts wrote:
> Chris Boot wrote:
>> I'd love to find a way of detecting a Soekris net48xx device
> > but there is no DMI or any Soekris-specific PCI devices.
>
> You could do ugly things like this:
>
> int i;
> char *bios = __va(0xf0000);
>
> for(i = 0; i < 0x10000 - 19; i++) {
> if(memcmp(bios + i, "Soekris Engineering", 19) == 0) {
> printk("soekris string found at 0x%x\n", i);
> }
> }
>
> The string "net4801" is also in there (although I'm using a 4826).
>
> If anyone knows a better way, I'd like to know it too.

Hmm, very ugly indeed! Where did you dig those offsets up from? Are they likely
to work properly in non-Soekris devices? I think just relying on people not
loading the module when not in the correct hardware is probably the best option
at the moment...

Chris