On Thu, 2005-03-10 at 23:56 +0100, Sebastian Reichelt wrote: > Hello! > > I have a Tevion MD9458 scanner which I would like to get to work with > Linux. Apparently it is supported by SANE, and sane-find-scanner detects > it correctly. However, when I try to access it with xsane or scanimage, > I get the message: > > open of device gt68xx:libusb:002:... failed: Invalid argument > > This happens when I am root or a normal user with appropriate > permissions. The right number increases every time I try this, as > somehow the file /proc/bus/usb/002/027 disappears and a new file > /proc/bus/usb/002/028 appears, and so on. > > In syslog, there is also the message: > usbfs: USBDEVFS_CONTROL failed cmd scanimage rqt 192 rq 1 le n 64 ret > -84 > And when I do an strace, there are a lot of lines that look like this: > ioctl(3, USBDEVFS_CONTROL, 0xbfffc790) = 64 > > I'm using a 2.6.10 custom-built kernel and the current SANE and libusb > drivers from Debian testing (Debian version numbers are 1.0.15-6 for > libsane and 0.1.10-2 for libusb-0.1-4, whatever that means). USB works, > and I can also access a digital camera with libusb. > > I hope this is enough information so you can help me with this problem. > Thanks in advance. > > -- > Sebastian Reichelt >
To get some debug info type: export SANE_DEBUG_GT68XX=128 and then type xsane or xscanimage or scanimage and check the logs. See this page for some backend info (maybe done already?) http://www.meier-geinitz.de/sane/gt68xx-backend/ and check your gt68xx.conf file on the override "artec-ultima-2000" option and check your firmware file? -- -------- m.vr.gr. Gerard Klaver
