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Old 08-02-2004, 08:50 PM   #1
godOfThunder
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Registered: Oct 2003
Location: Los Angeles, CA
Distribution: Fedora Core 2
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Share interrupts with /dev/rtc (IRQ 8)


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Hi everyone -

I'm looking for a way to simulate getting interrupts so we can test some software at slower-than-hardware interrupt speeds. I'd like to make use of the real-time clock and catch its interrupts with my own mini-module, but that crazy /dev/rtc device refuses to share and worse, refuses to go away.

I've tried changing my /etc/modprobe.conf file to include
Code:
alias char-major-10-135 off
as well as deleting the /dev/rtc entry.

Is there any way to insert a module and force it to handle a given IRQ?
Is there any way to remove the rtc driver?
I don't know much about the devfs - is there something else I have to do in addition to the above to kill the driver?

Finally, is there any way to generate interrupts without hardware?

Thanks
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Old 08-03-2004, 01:36 AM   #2
foo_bar_foo
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Registered: Jun 2004
Posts: 2,553
Thanked: 0
i think if you google
"linux requesting an interrupt"
you will get some fun information
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