[sane-devel] Problem with sane, HP5200 and libusb

[Stefan Seubert]

Hello Peter,

I installed the CVS version of sane-backends and my scanner is working
again. Many Thanks. Some times I still get this "Error on Device I/O"
message, but on a second try the scanner works in most cases. Good work!
Please let me know if I can help you, to get this thing kind of bullet
proof. If you could tell me what to do, I could provide you with all
kinds of logfiles and stuff to encircle this remaining little bug. At
least I have to say thank you again. You made one more happy linux user!

Greetings
Stefan

Am Mi, den 31.03.2004 schrieb Peter Kirchgessner um 18:46:
> Hi Stefan,
> 
> please try again the hp-backend from current CVS. I have made some 
> changes for the USB-devices. Maybe this helps you too.
> 
> Sincerely
> 
> Peter
> 
> Stefan Seubert schrieb:
> > My HP5200C scanner used to work perfectly with the scanner.o kernel
> > module. Now I upgraded to kernel 2.6.3 and have to use libusb. Everytime
> > I try to scan with scanimage the output looks like the following:
> > 
> > P4
> > # SANE data follows
> > 2550 3507
> > scanimage: sane_read: Error during device I/O
> > 
> > 
> > On tty1 I get some of the following messages:
> > 
> > cannot get config descriptor: Connection timed out
> > 
> > And dmesg shows me some of these lines:
> > 
> > usb 5-2: control timeout on ep0in
> > usbfs: USBDEVFS_CONTROL failed cmd usbmodules dev 2 rqt 128 rq 6 len 18
> > ret -110
> > 
> > The Scanner is detectet by "scanimage -L" as "device `hp:libusb:005:002'
> > is a Hewlett-Packard ScanJet 5200C flatbed scanner".
> > 
> > The Scanner makes some noise like it is being initialized but it's not
> > scanning. I tried sane-backends 1.0.13 and the cvs snapshot from
> > 2004-03-04 with the same results. I use libusb-0.1.8 and I have also
> > tried 0.1.7.
> > 
> > I don't know if this problem is related to sane or libusb. It would be
> > nice if someone here could help me with this.
> > 
> > Thanks
> > Stefan
> > 
> > 
>