Copyright 1989 AT&T Copyright (c) 1997 Sun Microsystems, Inc. All Rights Reserved.
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When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
devfree key [device]...
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 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.
Designates the unique key on which the device was reserved.
The following exit values are returned: 0
Successful completion.
Command syntax was incorrect, an invalid option was used, or an internal error occurred.
Device table or device reservation table could not be opened for reading.
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.
devreserv(1M), attributes(5)
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.