Re: Getting devfs to recognize a hotplugged fd0

From: Patrick Bowen (pbowen25_at_juno.com)
Date: 11/28/04

  • Next message: Alexandre \: "Re: ACPI related panic on early boot" 
    Date: Sat, 27 Nov 2004 21:20:25 -0600
To: FreeBSD Current <freebsd-current@freebsd.org>

    Ed Schouten wrote:

    >Hello Patrick,
    >
    >Patrick Bowen wrote:
    >
    >
    >>I'm trying to learn how to get devfs to create an fd0 enty in /dev
    >>automatically when I plug a floppy drive into the serial port of a
    >>running Dell D600 laptop running 6.0 current.
    >>
    >>
    >
    >Are you sure that's possible at all? You know the serial port isn't
    >plug-and-play? How can the operating system tell that there is something on
    >the serial port at all? :)
    >
    >
    >
    Ed;

    No, I'm not sure. But, in 4.10, with /dev already populated with an
    entry for fd0, I could plug the floppy into a running machine and then
    mount it, no problem. So I'm thinking that if can either create an entry
    for /dev/fd0 during or shortly after boot time, or get devfs to rescan
    for devices, then it should work on -current also. I occurs to me that
    rescanning might wreak havoc with operations already using other
    devices, like a disk write or something, so the first option may be
    preferable.

    This is not a critical issue, but falls more in the category of "Gee, I
    wonder if i can (fill-in-the-blank)" sort of thing.

    BTW, thanks for your reply...

    Patrick

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