devfsadm(1M)						  System Administration Commands					      devfsadm(1M)

NAME

       devfsadm, devfsadmd - administration command for /dev

SYNOPSIS

       /usr/sbin/devfsadm [-C] [-c device_class] [-i driver_name]
	    [ -n] [-r root_dir] [-s] [-t table_file] [-v]

       /usr/lib/devfsadm/devfsadmd

DESCRIPTION

       devfsadm(1M) maintains the /dev namespace. It replaces the previous suite of devfs administration tools including drvconfig(1M), disks(1M),
       tapes(1M), ports(1M), audlinks(1M), and devlinks(1M).

       The default operation is to attempt to load every driver in the system and attach to all possible device instances. Next, devfsadm  creates
       logical links to device nodes in /dev and /devices and loads the device policy.

       devfsadmd(1M)  is  the  daemon  version	of  devfsadm(1M). The daemon is started during system startup and is responsible for handling both
       reconfiguration boot processing and updating /dev and /devices in response to dynamic reconfiguration event notifications from the kernel.

       For compatibility purposes, drvconfig(1M), disks(1M), tapes(1M), ports(1M), audlinks(1M), and devlinks(1M)  are	implemented  as  links	to
       devfsadm.

       In addition to managing /dev, devfsadm also maintains the path_to_inst(4) database.

OPTIONS

       The following options are supported:

       -C		  Cleanup  mode.  Prompt  devfsadm  to cleanup dangling /dev links that are not normally removed. If the -c option is also
			  used, devfsadm only cleans up for the listed devices' classes.

       -c device_class	  Restrict operations to devices of class device_class. Solaris defines the following values for device_class: disk, tape,
			  port, audio, and pseudo. This option might be specified more than once to specify multiple device classes.

       -i driver_name	  Configure only the devices for the named driver, driver_name.

       -n		  Do not attempt to load drivers or add new nodes to the kernel device tree.

       -s		  Suppress any changes to /dev. This is useful with the -v option for debugging.

       -t table_file	  Read an alternate devlink.tab file. devfsadm normally reads /etc/devlink.tab.

       -r root_dir	  Presume that the /dev directory trees are found under root_dir, not directly under root (/). No other use or assumptions
			  are made about root_dir.

       -v		  Print changes to /dev in verbose mode.

EXIT STATUS

       The following exit values are returned:

       0    Successful completion.

       1    An error occurred.

FILES

       /devices

	   device nodes directory

       /dev

	   logical symbolic links to /devices

       /usr/lib/devfsadm/devfsadmd

	   devfsadm daemon

       /dev/.devfsadm_dev.lock

	   update lock file

       /dev/.devfsadm_daemon.lock

	   daemon lock file

       /etc/security/device_policy

	   device policy file

       /etc/security/extra_privs

	   additional device privileges

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       svcs(1), add_drv(1M), modinfo(1M), modload(1M), modunload(1M), rem_drv(1M), svcadm(1M), tapes(1M), path_to_inst(4),  attributes(5),  privi-
       leges(5), smf(5), devfs(7FS)

NOTES

       This  document  does not constitute an API. The /devices directory might not exist or might have different contents or interpretations in a
       future release. The existence of this notice does not imply that any other documentation that lacks this notice constitutes an API.

       devfsadm no longer manages the /devices name space. See devfs(7FS).

       The device configuration service is managed by the service management facility, smf(5), under the service identifier, and can  be  used	to
       start devfsadm during reconfiguration boot by:

	 svc:/system/device/local:default

       Otherwise, devfsadm is started by:

	 svc:/system/sysevent:default

       Administrative  actions	on  this  service, such as enabling, disabling, or requesting restart, can be performed using svcadm(1M). The ser-
       vice's status can be queried using the svcs(1) command.

SunOS 5.11							    23 Jun 2008 						      devfsadm(1M)