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devfree(1M)		System Administration Commands		   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.

OPERANDS
       The following operands are supported:

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

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

EXIT STATUS
       The following exit values are returned:

       0    Successful completion.

       1    Command  syntax  was  incorrect, an invalid option was used, or an
	    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

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

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Availability		     │SUNWcs			   │
       └─────────────────────────────┴─────────────────────────────┘

SEE ALSO
       devreserv(1M), attributes(5)

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	devre‐
       serv  may  concurrently	use  a device with a process that has reserved
       that device.

SunOS 5.11			  5 Jul 1990			   devfree(1M)

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