On Tue, 22 June 2010 "Rick L. Vinyard, Jr." [off-list ref] wrote:

quoted

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.

Bruno Prémont wrote:
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)

Will do. Thanks for the heads up.