[sane-devel] HP ScanJet 2400

[David Goodenough]

On Tuesday 17 July 2007, Pavel Železný wrote:
> I'm sorry for my bad english.
>
> I test to install the USB scaner HP ScanJet 2400 on my Gentoo notebook with
> latest sane, xsane, etc. applications a lib....
>
> When i try "scaneimage --device-name genesys:libusb:001:002 --resolution
> 300 --format tiif > ./test.tiff", scaner succesfully start (lamp in scanner
> start shinning) a move a little bit (2mm) and it's  all.
>
> About half a minute i get an error:
> scanimage: sane_start: Error during device I/O
>
> It's all.
>
> Have a nice day and many thanks for your work.
> Pavel Železný - Czech Republic

This looks like the problem that many are having with Plustek scanners.
Are you using a new kernel?  Is your kernel built with CONFIG_USB_SUSPEND?
If you are using Debian sid then recent kernels certainly are, and the 
same goes for recent Ubuntu kernels.  This requires a fix in libusb (which
is not yet available).  

The only guaranteed cure is to turn off CONFIG_USB_SUSPEND (or use a kernel
before it was introduced), but if you can get a parameter to the usbcore
module (it can be specifed on the linux command line from Lilo or Grub) set
usbcore.autosuspend=0 and this might help. 

David