[sane-devel] Unable to access minor data

[Oliver Schwartz]

Hi,

> However when I tried "scanimage -d acer:/dev/usb/scanner0"  or
> "scanimage -d snapscan:/dev/usb/scanner0"  I got the following:
> scanimage: open of device snapscan:/dev/usb/scanner0 failed: Invalid
> argument
>
> What may I try to work with this scanner?

Please read the instructions for USB scanners on 
http://snapscan.sourceforge.net. You'll have to add a firmware entry to 
snapscan.conf.

If your system doesn't load the scanner module automatically you may have to 
load it manually using "modprobe scanner" (as root). 

Also check the file permissions on /dev/usb/scanner0 if you want to use the 
scanner as a normal user. Use "chmod o+w /dev/usb/scanner0" to allow 
unrestricted access to all users.

If it still doesn't work please send me the debug log as described in 
Henning's mail.

Regards,

Oliver