devfree(1M) System Administration Commands devfree(1M)NAMEdevfree - release devices from exclusive use
SYNOPSISdevfree key [device...]
DESCRIPTIONdevfree 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 │SUNWcsu │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOdevreserv(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 5.10 5 Jul 1990 devfree(1M)
