Messages in this thread | | | Date | Tue, 2 Apr 1996 10:13:47 +0100 (BST) | From | Steve Davies <> | Subject | Re: Not counting "serial" interrupts |
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On Mon, 1 Apr 1996, Theodore Ts'o wrote:
> Can anyone explain why I have 2 systems, both with 2 serial ports which I > use, yet I get the following: > > crucible:~$ cat /proc/interrupts > 0: 31742599 timer > 1: 75862 keyboard > 2: 0 cascade > 5: 710241 3c509 > 12: 174002 PS/2 Mouse > 13: 1 math error > 14: 565977 + ide0 > > Where are IRQ 3 and 4 ????? > > The serial drivers unregister the IRQ when they're done using it, and > register the IRQ when they need it. Hence, they only show up in > /proc/interrupts when the com ports are in use. >
Many thanks to everyone who cleared this up for me... Boy do I feel silly.
Steve
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