[LinuxBIOS] Two more CS5530 IRQ steering questions

Juergen Beisert juergen127 at kreuzholzen.de
Thu Oct 4 08:27:41 CEST 2007


On Wednesday 03 October 2007 18:46, Marc Jones wrote:
> Glad it worked. I don't know enough about the kernel to know if the
> failed message is important. It seems to have a fallback mechanism. I
> also haven't followed the 5530 kernel patch debate. Maybe someone else
> here has the knowledge?

The kernel found the IRQ routing table and now it tries to route this IRQ. As 
it does not know the 5530 IRQ router it would switch to BIOS32 services to do 
so. But there is no BIOS32 service, so it fails. But also it does not touch 
the steering registers. So your solution works.


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