[linux-audio-user] [OT] P4P800 interrupt routing (was: APIC)

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Robert Epprecht wrote:

> Clemens Ladisch <clemens@xxxxxxxxxx> writes:
>
> > (Please note that the table in the P4P800's manual is partly wrong.)
>
> I'd like to know more about that,

The interrupts of the PCI slots are shown correctly, but some of the
onboard devices aren't.  (Which is strange because the onboard device
interrupts have a fixed routing inside the southbridge, and are well
documented by Intel.)

The onboard devices have these assignments:
$ cat /proc/interrupts
           CPU0       CPU1
 ...
 16:         13          0   IO-APIC-level  usb-uhci, usb-uhci
 17:         16          0   IO-APIC-level  Intel ICH5
 18:         32          0   IO-APIC-level  usb-uhci
 19:         18          0   IO-APIC-level  usb-uhci
 ...
 22:     136945          0   IO-APIC-level  SysKonnect SK-98xx
 23:          0          0   IO-APIC-level  ehci_hcd

(where 16 = PIRQA, ..., 23 = PIRQH)


HTH
Clemens



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