Provided by: devfsd_1.3.25-23_i386 bug


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


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


       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 registration and remove them on

       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
       regular expression being matched.

       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  symlink
       function   from   libc.  The  mksymlink  function  will  create  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 ttyS0

       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
       /usr/share/doc/devfsd/examples  directory  for  code  for  some  shared