I'm working in the sane-epson2 backend, trying to get it to fully support adf-duplex for scanning both sides of a page, for the Epson ES-H-300 scanner.
I've just submitted a patch (#313667) to enable the duplexing. It works, and now I have a button on XSANE under Advanced Options. However the even (backside) page is 180-degrees rotated. So as I'm looking thru the driver source, I thought I'd ask if there is a standard configuration/setting in one of the internal data structures I can use to cause every other page to be vertically flipped? If not, I'm going to add to the epson2 driver some logic to invoke sanei_magic_rotate() on the even-numbered pages, conditionally upon whether the adf-duplex feature is enabled. It seems this kind of logic would be useful to others, and perhaps even already in the code someplace. Suggestions or guidance welcome. -Jeff
