Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
DEVFS.CONF(5)		       File Formats Manual		   DEVFS.CONF(5)

NAME
     devfs.conf -- boot-time devfs configuration information

DESCRIPTION
     The  devfs.conf file provides an easy way to set ownership and permissions,
     or create links for devices available at boot.

     It does not work for devices plugged in and out after the system is up  and
     running,  e.g.  USB  devices.  See devfs.rules(5) for setting ownership and
     permissions for all device nodes, and devd.conf(5) for actions to be  taken
     when devices are attached or detached.

     Lines  starting  with  a  hash sign (`#') and empty lines are ignored.  The
     lines that specify devfs.conf rules consist of three  parameters  separated
     by whitespace:

     action  The  action to take for the device.  The action names are only sig-
	     nificant to the first unique character.

     devname
	     The name of the device created by devfs(4).

     arg     The argument of the action.

     The actions currently supported are:

     link    This action creates a  symbolic  link  named  arg	that  points  to
	     devname, the name of the device created by devfs(4).

     own     This  action  changes  the ownership of devname.  The arg parameter
	     must be in the form of an owner:group pair, in the same format used
	     by chown(8).

     perm    This action changes the permissions of devname.  The arg  parameter
	     must be a mode as explained in chmod(1).

FILES
     /etc/devfs.conf
     /usr/share/examples/etc/devfs.conf

EXAMPLES
     To  create a /dev/cdrom link that points to the first CD-ROM, the following
     may be added to devfs.conf:

	   link    cd0	   cdrom

     To set the owner of a device, the own action may be specified:

	   own	   cd0	   root:cdrom

     To set the permissions of a device, a perm action should be used:

	   perm    cd0	   0660

SEE ALSO
     chmod(1), devfs(4), devd.conf(5), devfs.rules(5), chown(8)

AUTHORS
     This manual page was written by Roland Smith <rsmith@xs4all.nl>.

FreeBSD ports 15.quarterly	  May 25, 2019			   DEVFS.CONF(5)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=devfs.conf&sektion=5&manpath=FreeBSD+15.1-RELEASE+and+Ports.quarterly>

home | help