Hi, On Sat, Jul 19, 2003 at 02:38:36PM +0200, Jaeger, Gerhard wrote: > On Samstag, 19. Juli 2003 12:10, Henning Meier-Geinitz wrote: > > Hi, > > > > Usually people ask for help here. In this case it's the other way > > round: I may have some spare time during the next few weeks so if > > anyone needs help writing a backend I may able to spend some time on > > it. > > "Oh, what a lucky man he is...."
Ha, I just finished my PhD examination so I think it's fair to have some free time now :-) > >The list of unsupported scanners gets longer and longer so I > > thought something should be done :-) > > > > I prefer working on fairly recent not too expensive USB scanners so I > > can get one of these devices for coding. > > Well, I think that by supporting the GeneSys Logic stuff we can cover a lot of > currently available devices. I know that Oliver Rauch is working on that but > I > don't know the status. The only thing I know is, that he's short of time... > --> Just a proposal! Ok, I'll get a UMAX 4500 and will see what I can do. From my quick scan of our lists it looks like these scanners use a GL646 chip: Avision iVina FB1600 http://www.meier-geinitz.de/sane/misc/umax-astra-4500.txt Genius ColorPage HR7X http://www.meier-geinitz.de/sane/misc/genius-colorpage-hr7x.txt Lexmark X83 http://www.meier-geinitz.de/sane/misc/lexmark-x83.txt Medion/Tevion MD 5345 http://www.meier-geinitz.de/sane/misc/medion-MD5345.txt Medion MD6228 Medion MD5345 http://www.meier-geinitz.de/sane/misc/medion-md6228.txt Plustek OpticPro S12 Plustek OpticPro S24 UMAX Astra 4500 http://www.meier-geinitz.de/sane/misc/umax-astra-4500.txt And maybe the: Canon CanoScan D2400UF (maybe) http://www.meier-geinitz.de/sane/misc/canon-d2400uf.txt But the interval for the interrupt endpoint is different here: Ivl=10ms. I'm not sure if that matters. Any more scanners that use the GL646 chipset? > Are there any other chipsets around that may have the same spreading? There are some more Genesys chipsets (e.g. the gl841). I have no idea how common they are and how different they are from the gl646. The Realtek RTS8801B and C chips are also fairly common. E.g. some HP and Visioneer scanners use these chips. Ok, so I'd like to know everything about the gl646. I know the data sheet from http://www.genesyslogic.com/GL646.htm but nothing more. Are there already any logs or code (Oliver?)? Bye, Henning
