[sane-devel] Wired behavior of hp scanjet 6200C

[m. allan noah]

i have a similar 6300C scanner, and have found it to be quite flakey
connected to any nForce usb controller, sometimes works, sometimes
not, but never the same thing two times in a row. These machines seem
to be not-quite usb 1.1 compatible, so i only use mine on scsi.

allan

2008/3/4 Tobias Lohner <tobias at lohner-net.de>:
> Hi there,
>
>  i've some trouble with my HP ScanJet 6200C which is connected via USB
>  to my PC.
>
>  First time i run 'sane-find-scanner' it's output is
>
>  found USB scanner (vendor=0x03f0 [Hewlett-Packard], product=0x0201 [HP
>  ScanJet 6200C]) at libusb:002:003
>
>  So i tried to run scanimage without any options (since i've only one
>  scanner connected)...:
>
>  > scanimage
>  P4
>  # SANE data follows
>  2550 3507
>  scanimage: sane_read: Error during device I/O
>
>  Ok, I/O errors are common these days, so i tried again, but it just
>  said 'scanimage: no SANE devices found'. Running sane-find-scanner
>  again outputs the following now:
>
>  found USB scanner (vendor=0x03f0, product=0x0201) at libusb:002:003
>
>  What's gone wrong? I'm running Debian etch with Debian kernel
>  2.6.18-6-k7 on AMD with an nVidia MCP51 USB host controller.
>
>  dmesg says:
>
>  ohci_hcd 0000:00:0b.0: wakeup
>  usb 2-1: new full speed USB device using ohci_hcd and address 3
>  usb 2-1: configuration #1 chosen from 1 choice
>  usb 2-1: usbfs: USBDEVFS_CONTROL failed cmd sane-find-scann rqt 128 rq
>  6 len 2 ret -110
>  usb 2-1: usbfs: USBDEVFS_CONTROL failed cmd sane-find-scann rqt 128 rq
>  6 len 2 ret -110
>
>  I'm wondering if that error is sane or kernel-driven since
>  sane-find-scanner seems to find the scanner but doesn't recognise the
>  driver for it after trying to scan.
>
>  Any thoughts?
>
>  Tobias
>
>  --
>  Remember, gravity is not just a good idea.
>  It's the law.
>  And it's not subject to repeal.
>
>
>
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