Changing PCMCIA IRQ
Pavel Roskin
proski at gnu.org
Sun Apr 21 15:21:22 EST 2002
Hi, Jim!
> Thanks very much for your help. As I am using kernel PCMCIA, I tried
> various ineffective maneuvers to get an equivalent effect. Kernel
> PCMCIA always uses the PCI IRQ if it's known, which it is (equivalent to
> irq_mode=0). I tried doing
It's not true. The kernel doesn't reprogram the bridge to use PCI
interrupts. I don't have the complete patch with me (it's at work), but
you can for example search for TI113X_DCR_IMODE_ISA in the kernel and in
pcmcia-cs. The kernel only defines that symbol but doesn't actually use
it. The same is true for Ricoh controllers: try searching for
RL5C47X_MISC_SRIRQ_ENA. Try the drivers from pcmcia-cs.
> setpci -v -s 2:3.0 INTERRUPT_LINE=5
>
> (that's the slot for the wireless card), and something stayed set to 5,
> but reloading the modules, or rebooting, still assigned IRQ 11 to the
> card. lspci reported no change in IRQ.
I wouldn't care so much about PCI irq's. 2% of speed is not worth it
(IMHO).
--
Regards,
Pavel Roskin
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