devfs doesn't set access rights

[Roland Smith]

On Tue, Dec 13, 2005 at 12:55:39PM -0800, Brooks Davis wrote:
<snip>
> > What's wrong with the EXAMPLES section in devfs(8)?
> 
> It's fine.  Referring to devfs(8) was poor word choice on my part.  I
> meant the system as a whole including devfs.rules.
> 
> > > any documentation of the rc.conf variables
> > > (which also aren't documented in rc.conf(5) either), and any mention of
> > > that the purpose or usage of lines like:
> > > 
> > > [devfsrules_unhide_basic=2]
> > 
> > See devfs.rules(5), third para of DESCRIPTION. I agree it could use an
> > example, and some explanation that you have to enable the ruleset in
> > /etc/rc.conf.
> 
> That's quite easy to miss.  I saw the bit about comments and my eyes
> glazed over and skipped the rest.  Breaking out the paragraph into
> bullets might be an improvement.
> 
> > There is an example on my website:
> > http://www.xs4all.nl/~rsmith/freebsd/#hotplug 
> >
> > Following is a patch for devfs.rules.5. Comments? Otherwise I'll submit it.
> 
> Content looks good to me.
<snip>
> From looking in rc.conf(5), I think this should be:
> 
> .Pa /etc/rc.conf :
> .Bd -literal
> devfs_system_ruleset="localrules"
> .Ed

Ok, I'll incorporate that, and send-pr it.

> > +.Pp
> >  To make all the
> >  .Xr uscanner 4
> >  devices accessible to their owner and the
> > @@ -81,6 +95,7 @@
> >  group, a similar rule may be used:
> >  .Pp
> >  .Dl "add path 'uscanner*' mode 0660 group usb"
> > +.Pp
> 
> I think this is unnecessary.  It's certainly not common practice.

It's just another example.
 
> >  .Sh SEE ALSO
> >  .Xr glob 3 ,
> >  .Xr devfs 5 ,
> > ------------------ devfs.rules.5 patch --------------------------
> > 
> > > Setting the mode of a device node really ought to be trivial, but last
> > > time I looked at it I was clearly missing something and couldn't get it
> > > working.  I decided the device in question really ought to be attached
> > > at boot and thus gave up and used devfs.conf since I had productive
> > > work to do.  Some cook easy to use cookbook example would be really
> > > helpful for those who don't have time to figure out all the details.
> > 
> > Maybe my freebsd page can help. Most of the things I learned while
> > configuring FreeBSD are documented here.
> > 
> > http://www.xs4all.nl/~rsmith/freebsd
> 
> The example you site looks like excellent handbook fodder.

Do you want to submit it? I won't have time to do it before mid-januari
at least.
 
> > > Comparativly few people will want to do anything more than make a device
> > > or two more accessable.
> > 
> > Agreed. But the mechanism is more general because devfs can be used in
> > multiple places (e.g. jails).
> 
> Definitely.  The full features look quite cool and useful.  My concern is
> simply that it's easy to find out how to do the common thing without
> having to understand all the complex things you can do.  Thanks for
> writing this manpage and working to improve it!

Thanks! Actually, my motivation for writing the manpages was to stop the
tide of "how do I configure devfs" postings on -questions.

Unfortunately, once you understand the details of the system well enough
to document it, some of the details will seem so obvious that you don't
document them. :-)

Roland
-- 
R.F.Smith (http://www.xs4all.nl/~rsmith/) Please send e-mail as plain text.
public key: http://www.xs4all.nl/~rsmith/pubkey.txt
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