Re: [PARPORT] ioctl(parport, PPCLAIM) hangs?

From: Bob Tanner (tanner@real-time.com)
Date: Thu May 01 2003 - 23:12:59 EDT

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    On Thursday 01 May 2003 07:17 pm, Nate Jenkins wrote:
    > I would like it best if my "open" would fail. However I have tried calling
    > open with O_EXCL and it still opens when another process has claimed the
    > /dev/parportX. I have also tried calling ioctl with PPEXCL and it still
    > will not keep other processes from blocking when trying to get at it...
    >
    >
    > Bob, why O_NOCTTY, I thought that was for serial devices?

    I think I cut-n-pasted it :-(

    The problem was something else was using the device. 

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