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 updat-
     ing /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  attri-
     butes:

     ____________________________________________________________
    |       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),   privileges(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).




SunOS 5.10           Last change: 6 Aug 2004                    3






System Administration Commands                       devfsadm(1M)



     The device configuration service is managed by  the  service
     management facility, smf(5), under the service identifier:

     svc:/system/device/local:default

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