Messages in this thread | ![/](/images/icornerl.gif) | | Date | Mon, 8 Dec 2003 10:58:22 -0800 (PST) | From | Jing Xu <> | Subject | irq again |
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Hi, guys,
I have been stuct on this problem for a long time. Any suggestion on this will be highly appreciated.
I'm running linux 2.4.20 and rtai 24.1.11. My linux kernel module needs to use IRQ 9 10 11 for AGP graphic card, sound card and PCI-Dio24 IO card. These irqs are also shared by USB controllers. My module hangs when it tries to request one of the above irqs that is used by USB keyboard.
I am using DELL machine, and its bios cannot reserve irq's.
I also tried to set boot paramter "pci=irqmask=0xf1ef" to reserve irqs 9 10 11 4 for my driver, and it hasn't had any effect - those irqs are still used by usb controllers on initialization.
How to solve this irq confliction problem?
Thanks in advance,
jing
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