[LAU] How to find USB sound card IRQ?

Hi all

My laptop has 4 usb holes in it, and i have a USB sound card in one of
them.
Everything works fine, but i have some xruns

I'm tying to prio both jackd and the right IRQ process for my sound
card.

How can i find out which IRQ my USB sound card use?
(its not shown belowe...it's maya44 usb)

$ cat /proc/interrupts
           CPU0 CPU1
  0: 664 43 IO-APIC-edge timer
  1: 829 830 IO-APIC-edge i8042
  8: 3 4 IO-APIC-edge rtc
  9: 20503 20220 IO-APIC-fasteoi acpi
 12: 9059 8991 IO-APIC-edge i8042
 14: 92878 94797 IO-APIC-edge libata
 15: 0 0 IO-APIC-edge libata
 17: 25 21 IO-APIC-fasteoi ehci_hcd:usb1,
uhci_hcd:usb7, sata_sil24
 18: 304856 304697 IO-APIC-fasteoi uhci_hcd:usb6, ahci,
iwl3945
 19: 12 13 IO-APIC-fasteoi uhci_hcd:usb2,
i915@email-addr-hidden:0000:00:02.0
 20: 3849997 3850202 IO-APIC-fasteoi uhci_hcd:usb3
 21: 199028 199069 IO-APIC-fasteoi ehci_hcd:usb4,
uhci_hcd:usb5
 22: 3411 3391 IO-APIC-fasteoi HDA Intel
NMI: 0 0
LOC: 24165408 23635862
ERR: 0
MIS: 0

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Received on Tue Mar 4 20:15:11 2008