devfsadm(1M)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXIT STATUS | FILES | ATTRIBUTES | SEE ALSO | NOTES

NAME

devfsadm, devfsadmd- administration command for /dev and /devices

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

The devfsadm command maintains the /dev and /devices namespaces. 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. devfsadm then creates device special files in /devices and logical links in /dev .

devfsadmd(1M) is the daemon version of devfsadm(1M) . The daemon is started by the /etc/rc* scripts 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 and /devices , devfsadm also maintains the path_to_inst(4) database.

OPTIONS

The following options are supported:

-C

Cleanup mode. Prompts devfsadm to invoke cleanup routines that are not normally invoked to remove dangling logical links. If -c 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 may 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 or /devices . 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 and /devices 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 and /devices 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

/etc/init.d/devfsadm

daemon start/stop script

/etc/rcS.d/S50devfsadm

link to init.d script

/etc/rc0.d/K83devfsadm

link to init.d script

/dev/.devfsadm_dev.lock

update lock file

/dev/.devfsadm_daemon.lock

daemon lock file

ATTRIBUTES

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

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Availability	SUNWcsu

SEE ALSO

Trusted Solaris 8 Reference Manual

add_drv(1M) , drvconfig(1M) , modload(1M) , modunload(1M) , rem_drv(1M)

SunOS 5.8 Reference Manual

devlinks(1M) , disks(1M) , modinfo(1M) , ports(1M) , tapes(1M) , path_to_inst(4) , attributes(5)

NOTES

This document does not constitute an API . /etc/minor_perm , /etc/security/tsol/minor_perm.adjunct , /etc/name_to_major , /etc/driver_classes , and /devices may not exist or may 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 .

Trusted Solaris 8  Last Revised 16 Aug 2000

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXIT STATUS | FILES | ATTRIBUTES | SEE ALSO | NOTES