Manual Pages for UNIX Operating System command usage for man devfs

File Systems                                           devfs(7FS)



NAME
     devfs - Devices file system

DESCRIPTION
     The devfs filesystem manages a name  space  of  all  devices
     under  the Solaris operating environment and is mounted dur-
     ing boot on the /devices name space.


     The /devices name space is dynamic and reflects the  current
     state  of  accessible  devices  under  the Solaris operating
     environment. The names of all attached device instances  are
     present under /devices.


     The content under /devices is under the exclusive control of
     the devfs filesystem and cannot be changed.


     The system may be configured to include a device in  one  of
     two ways:
       By means of dynamic reconfiguration (DR), using, for exam-
       ple, cfgadm(1M).
       For devices driven by driver.conf(4) enumeration, edit the
       driver.conf   file   to   add   a   new  entry,  then  use
       update_drv(1M)  to  cause  the  system  to   re-read   the
       driver.conf file and thereby enumerate the instance.


     The device may be attached through a number of system  calls
     and  programs,  including open(2), stat(2) and ls(1). During
     device attach, the device  driver  typically  creates  minor
     nodes      corresponding      to      the     device     via
     ddi_create_minor_node(9F). If the attach is successful,  one
     or  more  minor  nodes  referring  to the device are created
     under /devices.


     Operations like mknod(2), mkdir(2) and creat(2) are not sup-
     ported in /devices.

FILES
     /devices    Mount point for devfs file system


SEE ALSO
     devfsadm(1M), vfstab(4), attach(9E)

NOTES
     The /devices name space cannot be unmounted.





SunOS 5.11          Last change: 26 Oct 2004                    1






File Systems                                           devfs(7FS)



     All content at or below the /devices name space is an imple-
     mentation  artifact  and  subject  to incompatible change or
     removal without notification.




















































SunOS 5.11          Last change: 26 Oct 2004                    2