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Matthias Andree <mandree@sx1.HRZ.Uni-Dortmund.DE> wrote: > I have got four serial ports, 16550A type, which are correctly > recognized and auto-configured (even auto_irq with 2.1.124) by the > kernel, but the interrupts of ttyS2 and ttyS3 don't show up in > /proc/interrupts, while their ioports do. Only interrupts currently "allocated" show up in /proc/interrupt, and the serial driver just "allocate" IRQ when the pseudo file /dev/ttyS* is open - ioports are permanently reserved. Try: cat < /dev/ttyS2 & cat < /dev/ttyS3 & cat /proc/interrupt fg ^C fg ^C To know the number of IRQ which have appeared, "cat /proc/sys/stat" Etienne. -- -- The world belong to its organizer. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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