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    SubjectRe: [PATCH] hid Logitech G13 Driver 0.0.5
    Hi Rick,

    Please check how your driver behaves if the framebuffer is still in use
    (open and/or mmapped) by some userspace process when you unplug the
    keyboard.

    Probably you will get hit be the same complaints from kernel I was seeing
    with PicoLCD driver (see my patch http://lkml.org/lkml/2010/5/30/15 that
    is expected to fix it on PicoLCD side, the refcounting part of the patch)

    Bruno


    On Tue, 22 June 2010 "Rick L. Vinyard, Jr." <rvinyard@cs.nmsu.edu> wrote:
    > I've been waiting to resubmit until I get some of the userspace libraries
    > and utilities a little more mature. There were some things I was exposing
    > to sysfs that I didn't absolutely need, and some others that I needed to
    > add.
    >
    > The cairo and papyrus libraries are (preliminarily) fully working. Once I
    > make sure I have everything the daemon will need I'll resubmit the driver,
    > and once that is done I was planning on submitting the libs/utils to
    > Fedora.
    >
    > For now, I've been dropping Fedora 12/13 patches and kernel SRPMS here:
    > http://miskatonic.cs.nmsu.edu/g13/
    >
    > And the userspace libraries/utilities are at:
    > http://g13.sourceforge.net
    >
    > As for the g13fb on the G15... I would imagine it could be done, but I
    > don't have a G15 so I can't say for sure.
    >
    > If I had to guess I think you'll have to take the core functionality of
    > the keyboard driver and extend it with the fb code in the _same_ driver if
    > the keyboard and display use a similar design to the G13.
    >
    > The G13 uses the same endpoint for both keyboard input and display
    > messages, and since a USB endpoint can't be shared across drivers both
    > will have to reside in the same driver.
    >
    > --
    >
    > Rick
    >


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