devfree(1M)                (Essential Utilities)                devfree(1M)


   NAME
         devfree - release devices from exclusive use

   SYNOPSIS
         devfree key [device [...]]

   DESCRIPTION
         devfree releases devices from exclusive use.  Exclusive use is
         requested with the command devreserv.

         When devfree is invoked with only the key argument, it releases all
         devices that have been reserved for that key.  When called with key
         and device arguments, devfree releases the specified devices that
         have been reserved with that key.

         The arguments for this command are:

         key   Designates the unique key on which the device was reserved.

         device
               Defines device that this command will release from exclusive
               use.  Can be the pathname of the device or the device alias.

   ERRORS
         The command will exit with one of the following values:

         0 = successful completion of the task.

         1 = command syntax incorrect, invalid option used, or internal error
             occurred.

         2 = device table or device reservation table could not be opened for
             reading.

         3 = reservation release could not be completely fulfilled because one
             or more of the devices was not reserved or was not reserved on
             the specified key.

   FILES
         /etc/device.tab
         /etc/devlkfile

   NOTES
         The commands devreserv and devfree are used to manage the
         availability of devices on a system.  These commands do not place any
         constraints on the access to the device.  They serve only as a
         centralized bookkeeping point for those who wish to use them.
         Processes that do not use devreserv may concurrently use a device
         with a process that has reserved that device.




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   devfree(1M)                (Essential Utilities)                devfree(1M)


   SEE ALSO
         devfree(3X), devreserv(1), devreserv(3X), reservdev(3X).



















































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