udev: Directory for custom device nodes.

[Nils Philippsen]

On Thu, 2005-01-13 at 11:57 +0100, Harald Hoyer wrote:
> Bill Nottingham wrote:
> > Harald Hoyer (harald at redhat.com) said: 
> > 
> >>Due to
> >>https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=144593
> >>I am thinking of another directory to put device nodes in, which should 
> >>be copied over to /dev on system start.
> >>
> >>Any suggestions?
> > 
> > 
> > I'd think that a series of makedev invocations to run would be
> > safer.
> > 
> > Bill
> > 
> 
> so how can we make this rpm friendly?
> /etc/sysconfig/makedev.d/
> 	system.nodes
> 	custom1.nodes
> 	custom2.nodes
> 
> cat /etc/sysconfig/makedev.d/*.nodes | xargs MAKEDEV -x
> 
> doh, xargs is in /usr/bin ! :-/

how about this "xargs for the poor" (could be changed a bit and put
into /etc/init.d/functions):

--- 8< ---
FILES=/etc/sysconfig/makedev.d/*.nodes
MAXNR=100
COMMAND="MAKEDEV -x"

NR=$MAXNR
ARGS=""
cat $FILES | while read line; do
    if [ "$NR" -gt 0 ]; then
        ARGS="$ARGS $line"
        NR=$[$NR - 1]
    else
        $COMMAND $ARGS
        NR=$MAXNR
        ARGS="$line"
    fi
done
if [ -n "$ARGS" ]; then
    $COMMAND $ARGS
fi
--- >8 ---

Nils
-- 
     Nils Philippsen    /    Red Hat    /    nphilipp at redhat.com
"They that can give up essential liberty to obtain a little temporary
 safety deserve neither liberty nor safety."     -- B. Franklin, 1759
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