[LAU] Howto move devices to specific IRQ's ?

Hi I'm into shapeing up my system to work better. I have installed a Debian lenny and migrated 64Studio multimedia packets on to it, and use 64studio's kernel 2.6.21-1-multimedia-486, then installed irqbalance and try to find the best setup for my RME Hammerfall Multiface card. I use a lenove T61 laptop and my problem is that the PCMCIA card share IRQ with some usb device on IRQ 16: debian:~$ cat /proc/interrupts CPU0 CPU1 16: 5328 20016 IO-APIC-fasteoi uhci_hcd:usb4, yenta,hdsp I want to move my hdsp to another IRQ, but can't figure out howto, it is a matter of firmware version on my Multiface card ? I can't move the PCMCIA card since there is only one available slot.... /Sv-e