modunload(1M)                                             System Administration Commands                                             modunload(1M)

NAME

       modunload - unload a module

SYNOPSIS

       modunload -i module_id [-e exec_file]

DESCRIPTION

       modunload unloads a loadable module from the running system. The module_id is the ID of the module as shown by modinfo(1M). If ID is 0, all
       modules that were autoloaded which are unloadable, are unloaded. Modules loaded by modload(1M) are not affected.

OPTIONS

       The following options are supported:

       -e exec_file    Specify the name of a shell script or executable image file to be executed before the module is unloaded.  The first  argu-
                       ment  passed is the module id (in decimal). There are two additional arguments that are module specific. For loadable driv-
                       ers, the second argument is the driver major number. For loadable system calls, the second argument is the system call num-
                       ber.  For loadable exec classes, the second argument is the index into the execsw table. For loadable filesystems, the sec-
                       ond argument is the index into the vfssw table. For loadable streams modules, the second argument is  the  index  into  the
                       fmodsw  table.  For loadable scheduling classes, the second argument is the index into the class array. Minus one is passed
                       for an argument that does not apply.

       -i module_id    Specify the module to be unloaded.

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       modinfo(1M), modload(1M), update_drv(1M), attributes(5)

NOTES

       The modunload command has often been used on driver modules to force the system to reread the associated driver configuration  file.  While
       this works in Solaris 9, this behavior might break in future releases. The supported way for rereading driver configuration file is through
       the update_drv(1M) command.

SunOS 5.10                                                          19 Nov 2001                                                      modunload(1M)