Device IRQs might be set is in the actual hardware itself. The
manufacturer might have hardwired that device (such as a USB or Firewire
controller) to a particular hardware IRQ line.
Device itself might be designed to require a particular IRQ. Don't know
if that's true anymore, used to be in the days of the E/ISA buses.
I don't think software can do anything about those situations.
BIOS might have option to change IRQs.
Diego Simak wrote:
Yes, that page is for set the priorities of IRQ handlers, not the IRQ to
a certain device.
If you find how to do that let us know.
Thank you!
Diego
2011/9/8 andy baxter
On 08/09/11 11:49, Diego Simak wrote:
http://subversion.ffado.org/ wiki/IrqPriorities
<http://subversion.ffado.org/wiki/IrqPriorities>
That link is good for setting the priorities of irq handlers, but
doesn't tell you how to move a device to a different irq, which is
what I'd really like.
I just had another look at the onboard firmware config system, and
it does have a page that lets you assign devices labelled A,B,C...
to different physical interrupts, but I'm not sure how to use this
properly or safely. (There's no indication what device 'A' actually
is). By default they are all set to INT 11, which doesn't come up in
/proc/interrupts.
andy
2011/9/8 Atte André Jensen <atte@xxxxxxxx <mailto:atte@xxxxxxxx>
<mailto:atte@xxxxxxxx <mailto:atte@xxxxxxxx>>>
On 09/08/2011 11:15 AM, andy baxter wrote:
If you work out how to change it, please let me know, as it
annoys me too!
Sure!
I've been using stock kernels for a while now, but is it true
that
this is only relevant when running a rt-patched kernel *and*
setting up rt-priorities for IRQ's?
In any case, where do I find a quick (re-)intro to how to
tune the
IRQ's?
--
David
gnome@xxxxxxxxxxxxx
authenticity, honesty, community
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