Re: [PARPORT] simple parallel device

From: Bob Tanner (tanner@real-time.com)
Date: Tue May 13 2003 - 13:30:35 EDT

  • Next message: Jason Majors: "Re: [PARPORT] simple parallel device"

    On Tuesday 13 May 2003 03:42 am, Tim Waugh wrote:
    > On Tue, May 13, 2003 at 12:20:42AM -0700, Jason Majors wrote:
    > > I want the software to be able to use a blocking call like select()
    > > that'll just sit and wait for the parallel port to change (in its own
    > > thread).
    >
    > If you connect to the right pin (nAck), you'll get an interrupt, and
    > so you can literally use select() on the file descriptor you get from
    > ieee1284_get_irq_fd() (from libieee1284), or just the file descriptor
    > associated with the ppdev device.

    And I can say this works great.

    My initial problem with this was due to the fact I had a kernel without
    CONFIG_PARPORT_PC_FIFO=y and CONFIG_PARPORT_PC_SUPERIO=y
    in the kernel .config 

    -- 
Bob Tanner <tanner@real-time.com>         | Phone : (952)943-8700
http://www.mn-linux.org, Minnesota, Linux | Fax   : (952)943-8500
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