Rick Taylor wrote: >On Thu, 09 Oct 2003 07:49:02 -0500 >"wes schreiner" <wes@xxxxxxxxxxxx> wrote: > > >>Robert Jonsson wrote: >> >> >>>Thursday 09 October 2003 12.26 skrev wes schreiner: >>> >>> >>> >>>>jordan muscott wrote: >>>> >>>> >>>> >>>>>Ok to be honest I'm not gonna switch distros...... but are you saying >>>>>that Redhat offers you extra software that allows you to change the >>>>>IRQs that your pci cards are on? >>>>> >>>>> >>>>There is no such software on any distro. Your motherboard's BIOS decides >>>> >>>> > >http://www.ibiblio.org/mdw/HOWTO/Serial-HOWTO-8.html#ss8.1 > > OK, I forgot about lspnp/setpnp and lspci/setpci. I use lspnp/setpnp on my IBM Thinkpad 600E to turn the external serial port on and off, among other things. lspnp/setpnp require a kernel with PNP support compiled in. Kernel 2.4 mainline doesn't have this yet, but it is in the -ac patches and also in the kernel that some distros have (Redhat has it I think, but Debian doesn't). 2.6 has PNP support. The support for using lspci/setpci is in all 2.4.x kernels I think, but it doesn't always do what you want. I have a Zoran 36057 video capture device sitting on IRQ 10, same as my sound card. IRQ 9 is unused (no ACPI), so I just tried "setpci -v -s 03:09.0 INTERRUPT_LINE=09" to change its IRQ. lspci -v still says it is at IRQ 10, but lspci -b -v says it is at IRQ 9. Which is it? OK, I modprobe zr36067 and the module loads, and now both lspci -v and lspci -v -b agree that the Zoran chip is at IRQ 10, so nothing changed. *Sigh* I suppose setpci will work in some cases, with some cards, but it sure isn't a panacea. wes
