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

From: Arda Eden <ardaeden@email-addr-hidden>
Date: Tue Mar 04 2008 - 20:20:45 EET

Look at this,

20: 3849997 3850202 IO-APIC-fasteoi uhci_hcd:usb3
and,
Bus 003 Device 008: ID 0a92:0091 EGO SYStems, Inc

it looks like its IRQ20.

maybe.

On Tue, Mar 4, 2008 at 8:15 PM, Thomas Skellund <thomas@email-addr-hidden>
wrote:

> 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
> >
> >
> >
> > _______________________________________________
> > Linux-audio-user mailing list
> > Linux-audio-user@email-addr-hidden
> > http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
> >
> >
> >
> > --
> > Arda EDEN
> > Cumhuriyet University
> > Faculty of Fine Arts
> > Department of Music Technology
>
>

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

_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@email-addr-hidden
http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
Received on Wed Mar 5 00:15:04 2008

This archive was generated by hypermail 2.1.8 : Wed Mar 05 2008 - 00:15:04 EET