Re: [gentoo-user] scanner hotplug permissions torture

[Robert Persson]

I found a solution and I have posted it at
http://gentoo-wiki.com/Talk:HOWTO_Install_a_USB_scanner#.22The_above_udev_rules_are_wrong..22.

If anybody who knows their hotplug and udev stuff better than I do could
take it upon themselves to correct the usb scanner howto itself
(http://gentoo-wiki.com/HOWTO_Install_a_USB_scanner), which is very
confusing and misleading, I'm sure there will be good few people out
there who will be very grateful to you. (And not just Gentoo users --
there is a real lack of up-to-date usb scanner documentation out there.)

Robert


Robert Persson wrote:
> I have just acquired an Epson 1660 Photo scanner and I am having real
> trouble setting the permissions.
>
> Unfortunately I haven't been able to find a howto that explains clearly
> how you are supposed to get permissions sorted out using hotplug with
> more recent 2.6 kernels. There's something about a script in
> /etc/hotplug/usb, but nothing I can find that tells you what you are
> supposed to do with it.
>
> The scanner works fine when run as root.
>
> The permssions of the usb device (/proc/usb/001/004 right at the moment)
> are
>
> -rw-rw---- root:scanner
>
> However, even though user robert is a member of group scanner, he can't
> get sane even to recognise the scanner. He can do it though if he chmods
> to root:users or root:audio or to most of the other groups he is a
> member of. On the other hand there are some other groups of which he is
> a member which don't seem to be able to access the scanner -- floppy and
> adm for instance.
>
> Does anyone have any idea what I'm doing wrong?
>

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