On Fri, 29 Dec 2000, Oliver Rauch wrote:
> Hi Rob,
> the scanner is not supported by the Umax backend.
> As far as I know it is not supported by sane at all.
> I suggest you buy an scsi scanner!
well i had already gone ahead and purchased it by the time i read this :).
i've done some hacking around with it, and it is indeed LM9832 based. the
usb format isn't described in the datasheet (it says it's in the dev
software, but i couldn't find this), but it seems pretty simple from
looking at the usb snoop output.
the msg format is a bulkmsg send of 4 bytes in the shortest
case.
nWrite (0 or 1), register address, ???, # of bytes
the 2nd byte is possibly the high byte of the number of bytes to be
read/written.
if it's a read, you follow up by reading the blk endpoint, or if it's a
write you just put the rest of it in the blkmsg.
the scanner dependent stuff is in the .ini file that is distributed with
the scanner. and the lm983x bits should be similar to the hp backend.
anyway, just thought i'd let you all know the results in case anyone was
interested.
regards,
rob
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