[sane-devel] Problems with libusb (WAS:Upgrading sane-backend on Mandrake 10.0)

Lloyd Sumpter lsumpter@dccnet.com
Sat, 16 Oct 2004 08:35:28 -0700

Henning Meier-Geinitz wrote:
> Hi,
> On Fri, Nov 22, 2002 at 08:03:23AM -0800, Lloyd Sumpter wrote:
> Strange date.
Sorry, had just rebooted (from the problems between harddrake and 
sane-find-scanner) and hadn't run rdate yet.

>>BTW: The reason I have to upgrade is that apparently the sane-backends 
>>included with Mandrake 10.0 do NOT support libusb (but since the kernel 
>>is 2.6.x, there's no scanner.o to use instead...)
> sane-backends supports libusb since quite some time. And it was needed
> before kernel 2.6 at least for some scanners. So I'd be surprised if
> the Mandrake version had no libusb support.
> You can check by running "sane-find-scanner -v -v". It should print
> messages about using libusb.

Thanks for your help! But on Sept 29, you wrote:

 > On Tue, Sep 28, 2004 at 01:22:01PM -0700, Lloyd Sumpter wrote:
 > > [sanei_debug] Setting debug level of sanei_usb to 255.
 > > [sanei_usb] sanei_usb_init: couldn't open /dev/usb/scanner0: No 
such  > device
 > > [sanei_usb] sanei_usb_init: found 0 devices
 > Oh. That means that SANE isn't built with libusb support. It only
 > searches for /dev/usb/ but not for libusb devices.
 > As your sane-find-scanner program finds libusb devices, maybe you have
 > an old installation of the SANE backends without libusb support that's
 > used by scanimage?

Note that sane-find-scanner DOES find the scanner (using libusb), but 
scanimage does not.

PLEASE, any help would be appreciated - I've been working on this for weeks!

Lloyd Sumpter