The USB problems all over again... The closer we get to a
2.4
kernel release the less likely it is that the EPSON scanners
will
work with USB in 2.4. I am desperately looking for somebody
who
can fix this problem. It seems to be caused by UHCI, at
least I
have only receveived problem reports from people running
UHCI
interfaces. If anybody is using an EPSON USB scanner with an
OHCI
interface, please let me know.
Unfortunately on the USB development list there was not too
much feedback whenever somebody brought up this problem.
The really odd thing is that it only seems to happen with
EPSON scanners, every other scanner seems to work. The same
goes for
for all other bulk devices. But the fact that it worked
with 2.3.39 is
enough reason to believe that it's not related to my code or
to
the scanner.
I'm still wainting for the Perfection 610 scanner that's
being supplied by EPSON. They confirmed my shipping address
and my
phone number two days ago, so I'm hoping the scanner is on
it's
way by now.
On a different, but related subject: I received the
colorimeter
that I bought on EBay. Unfortunately (or to be honest as I
expected) it does not work and will not work with Linux. The
company is
not releasing any information about the communication
protocol
and my first experiments don't look promising: The device
seems
to send raw data to the Windows software, which is then
calculating the colorimetric values. So without knowing the
protocol and the
exact specification of the sensor it's not possible to
impement
a Linux solution. BTW, the device is a ColorSavvy
ColorMouseToo!.
With this colorimeter I hope to do something for a more
accurate color on the scanning and the printing end. And
while I'm on
my soap box, check out the Gimp Print Plugin and
the SANE EPSON backend.