Re: [LAU] How to find USB sound card IRQ?

From: Thomas Skellund <thomas@email-addr-hidden>
Date: Tue Mar 04 2008 - 20:15:53 EET

It says this:

Bus 005 Device 006: ID 04d9:0499 Holtek Semiconductor, Inc.
Bus 005 Device 001: ID 0000:0000
Bus 003 Device 008: ID 0a92:0091 EGO SYStems, Inc.
Bus 003 Device 001: ID 0000:0000
Bus 007 Device 001: ID 0000:0000
Bus 002 Device 002: ID 08ff:1600 AuthenTec, Inc.
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 002: ID 05c8:010b Cheng Uei Precision Industry Co., Ltd
(Foxlink)
Bus 001 Device 001: ID 0000:0000
Bus 006 Device 001: ID 0000:0000
Bus 004 Device 003: ID 0bda:0158 Realtek Semiconductor Corp.
Bus 004 Device 001: ID 0000:0000

The "Ego Systems" line goes away when I unplug my Esi Maya 44 card.

I'm not sure what all this means.
How can i conclude the irq?

On Tue, 2008-03-04 at 20:09 +0200, Arda Eden wrote:
> try ,
>
> lsusb (as root)
>
> On Tue, Mar 4, 2008 at 7:31 PM, Thomas Skellund
> <thomas@email-addr-hidden> 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@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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> Linux-audio-user@email-addr-hidden
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>
>
>
> --
> Arda EDEN
> Cumhuriyet University
> Faculty of Fine Arts
> Department of Music Technology

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Received on Wed Mar 5 00:15:03 2008

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