[sane-devel] problem launching sane

[Oliver Schwartz]

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Hi,

> # Change to the fully qualified filename of your firmware file, if
> # firmware upload is needed by the scanner
>    firmware /usr/local/agfafirm

There should be no spaces at the beginning of the line. Also this line 
will only work if "agfafirm" is the renamed "Snapscan e20.bin" from 
the windows driver installation.

> #/etc/sane.d/snapscan.conf
>
> # If not automatically found you may manually specify a device
> name.
>
> # For USB scanners also specify bus=usb, e.g.
> /dev/usb/scanner0 bus=usb

You shouldn't need this line.

> > "SANE_DEBUG_SNAPSCAN=255 xsane 2>debug.log" (which will create a
> > file "debug.log" with all the debugging information from the
> > backend.
>
> Here it is:
> [sanei_debug] Setting debug level of snapscan to 3.
> [snapscan] add_usb_device: error opening device libusb:001:002:
> Access to resource has been denied [snapscan] usb_read Only 8 bytes
> read

The file permission on /proc/bus/usb/001/* are not set correctly, the 
backend cannot open the device files through libusb. Either correct 
the permissions or use the scanner kernel module 
("modprobe scanner vendor=0x06bd product=0x2091"). In your first post 
you used the kernel module, since the scanner was detected at 
/dev/usb/scanner0.

- -Oliver
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