Hi, On Monday 24 May 2004 21:35, Henning Meier-Geinitz wrote: [SNIPSNAP] > > >found USB scanner (vendor=0x05d8, product=0x4002) at libusb:002:004 > > >found USB scanner (vendor=0x057c [AVM Berlin], product=0x0c00 [AVM > > > ISDN-Controller FRITZ!Card USB]) at libusb:002:003 # Your USB scanner > > > was (probably) detected. It may or may not be supported by # SANE. Try > > > scanimage -L and read the backend's manpage. > > > > Not really strange as there is no USB class for scanners. So > sane-find-scanner just shows all devices that are not hubs, printers, > discs and so on.
Ah okay, I see, now I remember, that I read that somewhere before... > > michael@linux:~> export SANE_DEBUG_GT68XX=255 ; scanimage > /dev/null > > [sanei_debug] Setting debug level of gt68xx to 255. > > [gt68xx] SANE GT68xx backend version 1.0 build 49 from sane-backends > > 1.0.13 > > [...] > > > [gt68xx] gt68xx_device_activate: model "artec-ultima-2000" > > Double-check that this scanner is really really an ARtec Ultima 2000. > There are so many scanners with the same USB ids but which are > internally quite different. All of them should work with the gt68xx > backend but may need an override flag. Hmmm, now the guy told, that the device is a Tevion MD 9385. > > > [gt68xx] download_firmware: trying /usr/share//sane/gt68xx/Gt680xfw.usb > > [gt68xx] firmware size: 7154 > > [gt68xx] gt68xx_device_memory_write: dev=0x8054988, addr=0x0, size=0x40, > > data=0x8064e48 > > We try to write the first 64 bates of the firmware file to the scanner... > > > [gt68xx] gt68xx_device_memory_read: dev=0x8054988, addr=0x3f00, > > size=0x40, data=0xbfff3f40 [gt68xx] gt68xx_device_memory_read: > > sanei_usb_control_msg failed: Invalid argument > > And read some sort of checksum which fails. I have never seen that > problem but it may be cause by defective hardware or USB problems. DOe > the scanner work with Windows? Yes. I suspect USB problems. > > Can anybody tell me what's going on? It seems, that there is some problem > > in USB communication. I noticed such strange behaviour also for the > > Plustek backend on a Debian box and also on kernel 2.6.4 - are there any > > known USB issus on these 2.6.x kernels???? > > Not really. I've tested some of the gt68xx scanners with 2.4 and > couldn't find any special problems. I don't remember if I tested > 2.6.4, however. > > > Henning, what do you think, it's your backend? Could it be, that the user > > downloads the wrong firmware? > > Some of the Artec Ultima 2000 scanners use ePlus2k.usb instead of > Gt680xfw.usb so that one should also be tried. Also keep in mind to > reset the scanner after each test. Otherwise the scanner is blocked by > the wrong firmware and the next test will fail even with the correct > file. Okay, thanks for the hints, we'll try again... Ciao, Gerhard
