[linux-audio-user] Setting IRQ on intel8x0-card

Lee Revell rlrevell at joe-job.com
Mon Oct 9 15:07:57 EDT 2006


On Mon, 2006-10-09 at 14:46 -0400, Paul Davis wrote:
> its basically not possible. PC architecture has changed quite a lot in
> the last few years, and AFAIK you can no longer get the kernel to change
> IRQ assignments. it seems stupid, i know, but i dug into this rather
> deeply a year or so back, and basically the kernel picks up the IO-APIC
> routings and does not modify them, even with the many flags that appear
> to be related to possibly modifying them :( there is a really cool perl
> script that actually analyses IO-APIC routings via the /proc filesystem,
> and it confirmed for me what i was worried about.
> 
> if your BIOS doesn't allow it, you're out of luck *AFAIK*. if i am
> wrong, i will be happy to hear more, since i face similar issues on my
> laptop.

Has it ever been possible to change the IRQs of onboard devices?  I
thought it was hard wired.

Lee




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