On Tuesday 04 November 2003 19:01, Henning Meier-Geinitz wrote: > Hi, > > On Tue, Nov 04, 2003 at 07:17:01PM +0000, Daniela wrote: > > I use SANE for the first time. My scanner (CanoScan N650U) can't be > > detected by any of the utilities except sane-find-scanner. > > Please show us the output of sane-find-scanner.
# No SCSI scanners found. If you expected something different, make sure that # you have loaded a SCSI driver for your SCSI adapter. found USB scanner (UNKNOWN vendor and product) at device /dev/uscanner0 # Your USB scanner was detected. It may or may not be supported by # SANE. Try scanimage -L and read the backend's manpage. # `UNKNOWN vendor and product' means that there seems to be a scanner at this # device file but the vendor and product ids couldn't be identified. # Currently identification only works with Linux versions >= 2.4.8. You may # need to configure your backend manually, see the backend's manpage. # Scanners connected to the parallel port or other proprietary ports can't be # detected by this program. # You may want to run this program as root to find all devices. Once you # found the scanner devices, be sure to adjust access permissions as # necessary. Again, as root it takes very long time, but produces exactly the same message. > > It is detected at boot time by the OS (FreeBSD 4.9). > > You may need libusb. The FreeBSD scanner driver doesn't have the > "extended features" of the Linux kernel (asking for USB ids, control > messages) so libusb may be needed. It should already be active as I need it for my mouse. > > When I set the debug level to 128, this is the output: > > (I also tried it as root, that gives the same results) > > Try setting the debug level of the plustek backend: > > SANE_DEBUG_PLUSTEK=255 > > To check what's going on with USB, you can also set > SANE_DEBUG_SANEI_USB=255. ... [plustek] usbDev_open(/dev/uscanner,0x04A9-0x2206) [sanei_usb] sanei_usb_open: trying to open device `/dev/uscanner' [sanei_usb] sanei_usb_open: can't find device `/dev/uscanner' in list [plustek] open failed: -1 [plustek] sane_get_devices (0xbfbff2fc, 0) ... Here we have the problem, but I have no idea why it failed. There's nothing wrong with the device /dev/uscanner. > > I might as well have done something wrong, I went through all > > documentation I could find, but I don't have a clue. > > > > The odd thing is, when I try it as a normal user it always finishes > > quickly, > > Probably because the user doesn't have access to some device files but > root does. > > > but as root it took very long time (now it doesn't any more, but I didn't > > change the configuration). When I did a "ps ax" at this moment, I saw > > that the process was in disk wait state. > > Maybe it checked some SCSI devices... > > Bye, > Henning > > _______________________________________________ > sane-devel mailing list > [email protected] > http://lists.alioth.debian.org/mailman/listinfo/sane-devel
