[LAU] How to find USB sound card IRQ?

Arda Eden ardaeden at gmail.com
Tue Mar 4 13:09:42 EST 2008


try ,

lsusb (as root)

On Tue, Mar 4, 2008 at 7:31 PM, Thomas Skellund <thomas at secretfreund.dk>
wrote:

> 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 at pci: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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>



-- 
Arda EDEN
Cumhuriyet University
Faculty of Fine Arts
Department of Music Technology
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