hid issue

Discussion in 'Windows Vista Drivers' started by dsrking2006, Oct 20, 2008.

  1. dsrking2006

    dsrking2006 Guest

    In hidusbfx2 sample driver, they used Timerfunction
    (Hidfx2EvtTimerfunction). i.e., they create a timer and queue the
    IOCTL_HID_READ_REPORT request and then complete this request in timer
    function. Here they didnt use isr. But I am using isr, and I want to
    complete this request in dpc. If I do this, whether
    IOCTL_HID_READ_REPORT is called by HIDCLASS driver when I didnt
    receive interrupt? (i.e, If I didnt get interrupt, the
    IOCTL_HID_READ_REPORT request is not completed, so next time this
    ioctl is not called). Am right? or Any suggestions?

    Regards - D.
    dsrking2006, Oct 20, 2008
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  2. can you please restate your question? are you saying that you get the IOCTL
    but your ISR does not get called? remember that your DPC for ISR can be
    already queued when you get another ISR call. you must queue up enough
    state in your extension/context to be able to process mutliple ISR calls
    from one DPC callback

    Doron Holan [MSFT], Oct 20, 2008
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  3. dsrking2006

    rock8181 Guest


    2008ë…„ 10ì›” 20ì¼ ì›”ìš”ì¼ ì˜¤í›„ 4ì‹œ 30분 15ì´ˆ UTC+9, (ì•Œ 수 ì—†ìŒ) ë‹˜ì˜ ë§:
    rock8181, Jul 14, 2012
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