Force cardbus IRQ assignments?
Laptop: IBM ThinkPad 770E
WiFi card: Blitzz (rtl8180) cardbus
Distro: Vector Linux 6L (Slackware 12.1)
I have an IRQ conflict between USB and the WiFi card. Basically, the WiFi card gets assigned IRQ 11 upon insert or startup. When started with the card inserted, the USB supposedly gets assigned IRQ 10, but I believe this laptop does not actually support changing the default USB IRQ (11). When I insert a USB device, a kernel message appears "Interrupt 11 disabled" and then I can't use the card or the USB device until I reboot. If I boot with the USB inserted, the WiFi card fails to even be identified when inserted. If I boot with both inserted, the computer locks at coldplugging (using VL-Hot). I tried modifying /etc/pcmcia/config.opts to exclude irq 11, but apparently that doesn't have an effect on cardbus cards.
According to the /proc/interrupts dump, the available interrupts are 3 and 4 (and I'd infer 10). I don't have any serial devices, so the use of 3 or 4 should be fine if the card supports it. I'd prefer forcing the card on 10 if I could.
I have almost no net service at home right now, and this laptop is my link to public WiFi when I have the time to get to it. I have another issue involving another PCMCIA card, but it's a separate issue with less priority. Right now, I'd like to focus on being able to use a flash drive and WiFi at the same time. My limited web searches have pulled up obsolete documents that haven't helped me very much, or referred to a Windows utility from IBM which I don't have available to me at present. Ideas, links, experience, instruction, all welcome. Thank you.