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    SubjectRe: raw memory & PCI bus access

    Hi all

    Say I have a driver that realizes a "virtual irq" (/dev/irq).
    User application waits for interrupts by calling select() for
    that device. Obviously such a driver doesn't need much of code.
    What a maximum latency between irq occurance and
    userapp reaction I should expect?


    Pavel A. Sher

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      Last update: 2005-03-22 13:54    [W:0.017 / U:12.360 seconds]
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