Hi Jan, you should not need any additional configuration. I just tried my HP ScanJet 6350c with libusb without problems (up to now I used scanner.o). You can try to reduce your hp.conf to the minimum entries that you need:
usb 0x03f0 0x0201 Just this line. From the listing I see that the libusb-device is opened successfully. It writes two commands to the scanner. When trying to read the response, it gets an error "read failed (End of file reached)". I don't know the reason. But it looks like it is located in the USB-part. Maybe someone else on the list has encountered a similar problem ? Sincerely Peter Jan Rüdiger schrieb: > Hi > > > > Peter Kirchgessner wrote: > >> Hi Jan, >> >> is this scanner really a HP ScanJet 4200c. USB says that it is a >> ScanJet 6200c. But that doesn't matter. >> After the first (and only) scan has completed, do the following: > > > yes it is a 6200c, sorry. My main Problem is why does it work only the > first time? Do i need a special config file for accessing the scanner > via libusb? I also already tried all the tips with /dev/usbscanner > connect-device in the ho.conf. > > SANE_DEBUG_HP=255 scanimage -L reports: > [sanei_debug] Setting debug level of hp to 255. > [hp] sane_init called > [hp] hp_init: global.is_up = 1 > [hp] sane_init will finish with Success > [hp] sane_get_devices called > [hp] hp_read_config: hp backend v1.01 starts reading config file > [hp] hp_read_config: processing line <scsi HP> > [hp] hp_read_config: processing line <# Uncomment the following if you > have "Error during device I/O" on SCSI> > [hp] hp_read_config: processing line <# option dumb-read> > [hp] hp_read_config: processing line <#> > [hp] hp_read_config: processing line <# The usual place for a > SCSI-scanner on Linux> > [hp] hp_read_config: processing line <#> > [hp] hp_read_config: processing line <# USB-scanners supported by the > hp-backend> > [hp] hp_read_config: processing line <# HP ScanJet 4100C> > [hp] hp_read_config: processing line <usb 0x03f0 0x0101> > [hp] hp_attach_matching_devices: attach matching scsi HP > [hp] hp_attach: "/dev/sg2" > [hp] sanei_hp_device_info_get: searching /dev/sg2 > [hp] sanei_hp_device_info_get: check /dev/sg2 > [hp] hp_get_dev: New device /dev/sg2, connect-scsi, scsi-request=1 > [hp] sanei_hp_device_new: /dev/sg2 > [hp] sanei_hp_device_info_get: searching /dev/sg2 > [hp] sanei_hp_device_info_get: check /dev/sg2 > [hp] sanei_hp_device_info_get: searching /dev/sg2 > [hp] sanei_hp_device_info_get: check /dev/sg2 > [hp] scsi_new: open failed (Invalid argument) > [hp] /dev/sg2: Can't open scsi device > [hp] hp_read_config: processing line <# HP ScanJet 5200C> > [hp] hp_read_config: processing line <usb 0x03f0 0x0401> > [hp] hp_attach_matching_devices: usb attach matching "usb 0x03f0 0x0101" > [hp] hp_read_config: processing line <# HP ScanJet 62X0C> > [hp] hp_read_config: processing line <usb 0x03f0 0x0201> > [hp] hp_attach_matching_devices: usb attach matching "usb 0x03f0 0x0401" > [hp] hp_read_config: processing line <# HP ScanJet 63X0C> > [hp] hp_read_config: processing line <usb 0x03f0 0x0601> > [hp] hp_attach_matching_devices: usb attach matching "usb 0x03f0 0x0201" > [hp] hp_attach: "libusb:001:002" > [hp] sanei_hp_device_info_get: searching libusb:001:002 > [hp] sanei_hp_device_info_get: check /dev/sg2 > [hp] sanei_hp_device_info_get: check libusb:001:002 > [hp] hp_get_dev: New device libusb:001:002, connect-usb, scsi-request=0 > [hp] sanei_hp_device_new: libusb:001:002 > [hp] sanei_hp_device_info_get: searching libusb:001:002 > [hp] sanei_hp_device_info_get: check /dev/sg2 > [hp] sanei_hp_device_info_get: check libusb:001:002 > [hp] hp_nonscsi_open: open usb with "libusb:001:002" > [hp] scsi_flush: writing 2 bytes: > [hp] 0x0000 1B 45 .E > [hp] sanei_hp_device_info_get: searching libusb:001:002 > [hp] sanei_hp_device_info_get: check /dev/sg2 > [hp] sanei_hp_device_info_get: check libusb:001:002 > [hp] scsi_flush: writing 7 bytes: > [hp] 0x0000 1B 2A 73 32 35 37 45 .*s257E > [hp] sanei_hp_device_info_get: searching libusb:001:002 > [hp] sanei_hp_device_info_get: check /dev/sg2 > [hp] sanei_hp_device_info_get: check libusb:001:002 > [hp] sanei_hp_device_info_get: searching libusb:001:002 > [hp] sanei_hp_device_info_get: check /dev/sg2 > [hp] sanei_hp_device_info_get: check libusb:001:002 > [hp] scl_inq: read failed (End of file reached) > [hp] scl_errcheck: Can't read SCL error stack: End of file reached > [hp] hp_nonscsi_device_new: SCL reset failed > [hp] scsi_close: closing fd 0 > [hp] sanei_hp_device_info_get: searching libusb:001:002 > [hp] sanei_hp_device_info_get: check /dev/sg2 > [hp] sanei_hp_device_info_get: check libusb:001:002 > [hp] hp_read_config: processing line <#> > [hp] hp_read_config: processing line <# Uncomment the following if your > scanner is connected by USB,> > [hp] hp_read_config: processing line <# but you are not using libusb> > [hp] hp_read_config: processing line <# /dev/usb/scanner0> > [hp] hp_read_config: processing line <# option connect-device> > [hp] hp_read_config: attach usb 0x03f0 0x0601 > [hp] hp_attach_matching_devices: usb attach matching "usb 0x03f0 0x0601" > [hp] hp_read_config: reset to default config > [hp] sane_get_devices will finish with Success > > No scanners were identified. If you were expecting something different, > check that the scanner is plugged in, turned on and detected by the > sane-find-scanner tool (if appropriate). Please read the documentation > which came with this software (README, FAQ, manpages). > [hp] sane_exit called > [hp] hp_destroy: global.is_up = 0 > [hp] sane_exit will finish > > _______________________________________________ > Sane-devel mailing list > sane-de...@www.mostang.com > http://www.mostang.com/mailman/listinfo/sane-devel > -- Peter Kirchgessner http://www.kirchgessner.net mailto:pe...@kirchgessner.net
