On Saturday 19 Mar 2016 08:45:59 you wrote: > mar...@duskware.de (Martin Husemann) writes: > >I tried to get the non-libusb (i.e. uscanner0) version to work with latest > >sane-backends, but failed. > > Does it work in FreeBSD (with /dev/usb/scanner0) ?
No, I think FreeBSD only provide assess via the ugen interface (according to the online FreeBSD handbook). > > >Instead we should improve our device ownership handling in a more > >general way. Jared suggested dynamic groups (i.e. the kernel magically > >adding the owner of /dev/console to a special group "consoleuser" or > >something similar), but there are other alternatives. > > That's a can of worms. You don't even know what a particular ugen* > device is until you opened and queried it. FreeBSD suggest creating a usb group and using devfs.rules to control access to ugen devices. IMHO this unworkable as the ugen a device like a scannet attached as will vary depending on other USB devices attached at the time. Dave -- ========================================= Phone: 07805784357 Open Source O/S: www.netbsd.org Caving: http://www.wirralcavinggroup.org.uk =========================================