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 moduload(2)                                                     moduload(2)

 NAME    [Toc]    [Back]
      moduload - unload a kernel module on demand

 SYNOPSIS    [Toc]    [Back]
      #include <sys/mod.h>
      int moduload(long module_id);

 DESCRIPTION    [Toc]    [Back]
      moduload allows users with appropriate privilege to demand unload one
      or all unloadable modules from the running kernel. A module is
      considered unloadable if it is not currently in use, if no module
      depending on it is currently loaded, and if the module is not being
      loaded or unloaded from the kernel. If module_id is set to 0 (zero),
      moduload attempts to unload all unloadable modules, otherwise moduload
      attempts to unload the module specified by module_id.

    Notes    [Toc]    [Back]
      moduload is currently implemented as a macro.

 RETURN VALUE    [Toc]    [Back]
      On success, moduload returns 0, otherwise it returns -1 and sets errno
      to indicate the error.

 ERRORS    [Toc]    [Back]
      moduload fails if one or more of the following are true:

      [EINVAL]      module_id does not correspond to any valid currently
                    loaded kernel module.

      [EPERM]       The calling process does not have appropriate privilege.

      [EBUSY]       There are outstanding references to the module, or
                    modules that depend on this module are currently loaded,
                    or profiling is enabled, or the module is in the process
                    of being loaded or unloaded from the kernel.

      [ENOSYS]      The Dynamically Loadable Kernel Module feature is not

 SEE ALSO    [Toc]    [Back]
      kcmodule(1M), modload(2).

 Hewlett-Packard Company            - 1 -   HP-UX 11i Version 2: August 2003
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