Usev permissions and USB scanners

Martin Owens doctormo at
Tue May 5 16:05:02 UTC 2009

And if you'd like to fix it, there is a set of hal fdi files which put
scanners into the scanner group for ACL control:


Sometimes the fdi files can miss a supported scanner (like my Epson
v500) But hopefully with the additions sent upstream, the next person
with your scanner shouldn't suffer the same fate.

Be sure you know which driver supports your scanner though, it's
important to get it in the right package. (libsane, libsane-extras,
iscan-plugins etc etc)

Although no idea how this effects DeviceKit, I presume it's going to
need some kind of similar list of devices supported.

Regards, Martin Owens

On Sun, 2009-05-03 at 16:16 +0300, kohen.d at wrote:
> Hello,
> In the Brother support page:
> They recommend changing the mode for USB devices to 666,  which is a
> security issue.
> I created a usbdev group and added my user to that group, added a
> group setting to that line instead of the recommended  mode change,
> and my scanner works, I think that this group should be added to the
> default installation, and the rule modified accordingly.
> What do you think?
> Please reply to all, so I'll get the message, I'm not a list member.
> David Kohen

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