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devfree (1)
  • >> devfree (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
  •  

    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 TYPEATTRIBUTE VALUE

    AvailabilitySUNWcsu

     

    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 devreserv may concurrently use a device with a process that has reserved that device.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    OPERANDS
    EXIT STATUS
    FILES
    ATTRIBUTES
    SEE ALSO
    NOTES


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