module_exit(9) [centos man page]

MODULE_EXIT(9)							   Driver Basics						    MODULE_EXIT(9)

NAME

       module_exit - driver exit entry point

SYNOPSIS

       module_exit(x);

ARGUMENTS

       x
	   function to be run when driver is removed

DESCRIPTION

       module_exit will wrap the driver clean-up code with cleanup_module when used with rmmod when the driver is a module. If the driver is
       statically compiled into the kernel, module_exit has no effect. There can only be one per module.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014							    MODULE_EXIT(9)

cfgmgr_get_state(9r)													      cfgmgr_get_state(9r)

NAME

       cfgmgr_get_state - General: Determines the configuration state

SYNOPSIS

       int cfgmgr_get_state(
	       char *driver_name,
	       int *driver_cfg_state );

ARGUMENTS

       Specifies  the  name  of  the device driver whose configuration state you want to obtain. This name is a string that matches the string you
       specified for the entry_name item in the /etc/sysconfigtab database. Typically, third-party driver writers specify the  driver  name  (fol-
       lowed  by  a  colon)  in  the  sysconfigtab  file fragment, which gets appended to the /etc/sysconfigtab database during the driver product
       installation.  Returns one of the following state value bits to the driver_cfg_state argument:  The  specified  device  driver  is  in  the
       dynamic	configuration  state.  This  means  the  driver was dynamically configured into the kernel.  The specified device driver is in the
       static configuration state. This means the driver was statically configured into the kernel.

DESCRIPTION

       The cfgmgr_get_state routine obtains the configuration state of the specified device driver. The specified device driver is in  either  the
       static configuration state or the dynamic configuration state.

       The  cfgmgr_get_state  routine returns the state value in the driver_cfg_state argument. Driver writers should store this state value in an
       xx_is_dynamic variable or some similarly named variable.

       You typically call the cfgmgr_get_state routine in the CFG_OP_CONFIGURE entry point of the device driver's configure routine.

RETURN VALUES

       Upon successful completion, cfgmgr_get_state returns the value ESUCCESS. This success value indicates that  cfgmgr_get_state  returned  the
       configuration state of the specified device driver in the driver_cfg_state argument. Otherwise, cfgmgr_get_state returns one of the follow-
       ing error constants defined in /usr/sys/include/sys/sysconfig.h and /usr/sys/include/sys/errno.h: The device driver that you  specified	in
       the  driver_name  argument  does  not  exist.  In this case, cfgmgr_get_state cannot return the configuration state of the specified device
       driver in the driver_cfg_state argument.  The device driver that you specified in the driver_name argument is not a valid name.

EXAMPLES

       See Writing Device Drivers: Tutorial for a code example of the cfgmgr_get_state interface.

SEE ALSO

       Routines: cfgmgr_set_status(9r)

															      cfgmgr_get_state(9r)