Re: What pokes the ISA IO port of 0x211 ?

[Rene Herman]

On 21-04-08 13:12, Frantisek Rysanek wrote:
> Dear Everyone,
>
> I'm dealing with an embedded PC motherboard that contains some custom 
> circuitry (GPIO), accessible via an ISA IO range between 0x200 and 
> 0x218.  
>
> There's an interesting issue with this in recent Linux (tried 
> 2.6.22.6 and 2.6.24.2): something probes IO port 0x211 on boot, which 
> happens to be an add-on buzzer control port - effectively the kernel 
> boot launches an accoustic alarm :-)  
>
> Any ideas what this could be? 

ISAPnP default read data port is close at 0x213...

I haven't checked but this also reminds me of sensor chips. Do you have 
sensor drivers builtin?

Rene.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/