Re: [gentoo-amd64] USB scanners and udev

["B. Nice" <anonymous.pseudonym.88@gmail.com>]

On Tue, 2007-03-06 at 16:44 +0000, Peter Humphrey wrote:
> Also not, perhaps, a 64-bit problem, but can someone please confirm that 
> they can plug a USB scanner in and have it work? I have an Epson Perfection 
> 640U which works under M$ but not Gentoo.
> 
> I'm trying to follow gentoo-wiki.com/HOWTO_Installing_USB_Scanner, although 
> it's not easy with so many variations being covered in the one document. I 
> get as far as:
> 
> # sane-find-scanner -q
> found USB scanner (vendor=0x04b8 [EPSON], product=0x010c [Perfection640  ]) 
> at libusb:002:007
> 
> ...but:
> # scanimage -L
> 
> No scanners were identified. [...]
> 
> I can locate the /dev/usbdev* devices that are created when I plug the 
> scanner in; changing their ownership to root:scanner has no effect on 
> scanimage. I am in the scanner group, but running as root makes no 
> difference anyway.
> 
> Udev is at version 106, kernel 2.6.20, hotplug is started in the default 
> run-level (though it seems to make no difference); what else can I say?
> 
> Do I have to write a udev rule? /lib64/modules/2.6.20-gentoo/modules.usbmap 
> contains nothing pertaining to my scanner, or is this a red herring?
> 
> /proc/sys/kernel/hotplug contains a single blank line. Another red herring?
> 
> -- 
> Rgds
> Peter Humphrey
> Linux Counter 5290, Aug 93

Not solely a scanner, but my Brother MFC-6800 scans, and prints under
Gentoo, and it's attached via USB.  It requires a bit of playing
with /dev directory permissions to allow the normal user to use it
however.  FYI, I used Xsane, and followed the gentoo-wiki page.

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