Date: Tue, 8 Nov 2005 22:50:04 +0000 From: Andy Fraser <andyfraser@gmail.com> To: freebsd-stable@freebsd.org Subject: Re: USB Card Reader Permissions Message-ID: <200511082250.04433.andyfraser@gmail.com> In-Reply-To: <200511090841.36177.doconnor@gsoft.com.au> References: <200511082054.42113.andyfraser@gmail.com> <200511090841.36177.doconnor@gsoft.com.au>
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On Tuesday 08 Nov 2005 10:11 pm, Daniel O'Connor wrote: > > I was wondering if someone could tell me how to set the permissions for a > > USB card reader when it's plugged in? I've been Googling for hours and > > found nothing concrete so far although I'll keep looking. > > devfs.conf can do it. I thought that was only for devices that exist at boot? I have my DVD burner set up in devfs.conf so I can use it as my user (reading and burning with some other tweaks[1]). > > So far I have this situation: > > I plug in the card reader and device nodes are created > > (e.g. /dev/da0s1, /dev/da1s1 etc). I can mount this as root and if I > > manually set the permissions I can mount it as my user too. What I can't > > work out is how to change the permissions when I plug it in so I can just > > use the reader as my user. > > [inchoate 8:36] ~ >cat /etc/devfs.rules > [root=100] > > add path 'da*' group operator mode 660 I already had something like this... > And in rc.conf.. > devfs_system_ruleset="root" ...and this turned out to be the missing piece in the jigsaw. > > I've read the man pages for devfs, devfs.conf and devfs.rules. > > devfs.rules looks like what I need but I can't work out what I actually > > need to do or how to test a rule without rebooting. > > It isn't very obvious :( > You can test your changes by doing.. > /etc/rc.d/devfs restart I'd been trying that. It turns out I had completely missed the rc.conf line above so obviously restarting devfs had no effect. Many thanks Daniel. It's working just how I want it now. :-) [1] One of the reasons I first tried FreeBSD as a desktop OS was because it has better support for CD/DVD burning as a user than Linux does (I still can't get burning working reliably with Gentoo but FreeBSD works flawlessly). And the sound system is much better but that's another story. :-) -- Andy.
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