The Linux kernel 2.6.34-rc1 may assist in solving this issue. From the
changelog:
commit 67b9946dd07eeef8188e4cab816d2c370bcaa7b2
Author: John Tsiombikas
Date: Thu Feb 25 17:09:08 2010 +0200
USB: pl2303: initial TIOCGSERIAL support
I've got a trivial patch for the pl2303 driver, that's what I needed to
make the wacom serial tablet driver work properly. It uses the
TIOCGSERIAL ioctl to determine if it's talking to a serial device or
not, which I gather is rather common, but the pl2303 driver didn't
implement that ioctl.
Here's a patch, I'm not sure it's absolutely correct, I mostly looked at
other similar usbserial drivers to see what I must do, but it works for
me.
Signed-off-by: John Tsiombikas
Signed-off-by: Greg Kroah-Hartman
There is a PPA of this kernel at http://kernel.ubuntu.com/~kernel-
ppa/mainline/
--
X.org doesn't hotplug wacom serial tablets
https://bugs.launchpad.net/bugs/424620
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