/etc/devfsd.conf - the main configuration file for devfsd.


FORMAT

       The main documentation for the format is in devfsd(8).


EXAMPLES

       Here are some examples of the most common usage:

       Compatibility entries, the following will create  symbolic
       links  from /dev/misc/device to /dev/device on node regis­
       tration and remove them on unregistration:

       REGISTER        misc            MKOLDCOMPAT

       UNREGISTER      misc            RMOLDCOMPAT

       The following means  to  ignore  any  REGISTER  or  CHANGE
       entries  occurring  later in the file for devices matching
       the regex ^pt[sy]/.*:

       REGISTER       ^pt[sy]/.*          IGNORE

       CHANGE         ^pt[sy]/.*          IGNORE

       CREATE         ^pt[sy]/.*          IGNORE

       This runs the partx command to tell the kernel  about  the
       partitioning  of  an IDE or SCSI hard disk when one of the
       partitions is accessed for the first time.  Notice the use
       of  regular  expression substituation in the command "\1",
       corresponding to the first set of parentheses in the regu­
       lar expression being matched.

       LOOKUP              ^((ide|scsi)/host[0-9]+/bus[0-9]+/tar­
       get[0-9]+/lun[0-9]+)/part[0-9]+$       EXECUTE /sbin/partx
       -a $mntpnt/\1/disc

       This  calls  the  GLOBAL function to create a symlink from
       /dev/tts/0 to /dev/ttyS0 and also to /dev/modem, the links
       will  be  removed at device unregistration time. The order
       of link creation is the reverse of the order in the config
       file. Typically the GLOBAL functions are in libc. Note how
       the mksymlink function is being used, rather than the sym­
       link  function from libc. The mksymlink function will cre­
       ate parent directories as required, and will not  generate
       a failure code if the symlink already exists.

       REGISTER   ^tts/0$  CFUNCTION  GLOBAL  mksymlink  $devname
       modem

       REGISTER   ^tts/3$  CFUNCTION  GLOBAL  mksymlink  $devname


       UNREGISTER ^tts/0$ CFUNCTION GLOBAL unlink modem

       UNREGISTER ^tts/3$ CFUNCTION GLOBAL unlink ttyS0

       The  other  use  of  CFUNCTION  and MFUNCTION is to call a
       function in a shared object that devfsd  will  load.   See
       the examples directory for code for some shared objects.


SEE ALSO

       devfsd(8)


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