[linux-audio-user] interrupts

[Atte André Jensen]

Hi

I run xubuntu on a IBM T41 laptop with Pentium M 1.6 and 1G ram.

Reading this (http://tapas.affenbande.org/?page_id=40) suggests that I 
should have change the priority of my sound card. Here's my 
/proc/interrupts:

atte at ajstrup:~$ cat /proc/interrupts
            CPU0
   0:    2421490          XT-PIC  timer
   1:      11005          XT-PIC  i8042
   2:          0          XT-PIC  cascade
   7:          0          XT-PIC  parport0
   8:          5          XT-PIC  rtc
   9:    1587965          XT-PIC  acpi
  11:    3008807          XT-PIC  uhci_hcd:usb1, uhci_hcd:usb2, 
uhci_hcd:usb3, ehci_hcd:usb4, yenta, yenta, radeon at pci:0000:01:00.0, 
Intel 82801DB-ICH4, ath0, eth0
  12:      68364          XT-PIC  i8042
  14:      95065          XT-PIC  ide0
  15:     167883          XT-PIC  ide1
NMI:          0
LOC:          0
ERR:          0
MIS:          0

And heres lspci:
atte at ajstrup:~$ lspci
0000:00:00.0 Host bridge: Intel Corporation 82855PM Processor to I/O 
Controller (rev 03)
0000:00:01.0 PCI bridge: Intel Corporation 82855PM Processor to AGP 
Controller (rev 03)
0000:00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM 
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01)
0000:00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM 
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 01)
0000:00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM 
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01)
0000:00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) 
USB2 EHCI Controller (rev 01)
0000:00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 81)
0000:00:1f.0 ISA bridge: Intel Corporation 82801DBM (ICH4-M) LPC 
Interface Bridge (rev 01)
0000:00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE 
Controller (rev 01)
0000:00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM 
(ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 01)
0000:00:1f.5 Multimedia audio controller: Intel Corporation 
82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01)
0000:00:1f.6 Modem: Intel Corporation 82801DB/DBL/DBM 
(ICH4/ICH4-L/ICH4-M) AC'97 Modem Controller (rev 01)
0000:01:00.0 VGA compatible controller: ATI Technologies Inc Radeon 
Mobility M7 LW [Radeon Mobility 7500]
0000:02:00.0 CardBus bridge: Texas Instruments PCI4520 PC card Cardbus 
Controller (rev 01)
0000:02:00.1 CardBus bridge: Texas Instruments PCI4520 PC card Cardbus 
Controller (rev 01)
0000:02:01.0 Ethernet controller: Intel Corporation 82540EP Gigabit 
Ethernet Controller (Mobile) (rev 03)
0000:02:02.0 Ethernet controller: Atheros Communications, Inc. AR5212 
802.11abg NIC (rev 01)

So I have two soundcards, the onboard (82801DBDBL/DBM, from looking at 
lspci) and an Edirol USB UA1A. It seems that alot of stuff is sharing 
IRQ 11 (soundcard, usb, graphics card, ethernet, wlan and pcmcia). So my 
questions is:

Would the way to go be to reassign usb and soundcard to their own 
(shared?) IRQ?. How is this done and which IRQ should I go for?

-- 
peace, love & harmony
Atte