__PARPORT_REGISTER_D(9)               Parallel Port Devices               __PARPORT_REGISTER_D(9)



NAME
       __parport_register_driver - register a parallel port device driver

SYNOPSIS
       int __parport_register_driver(struct parport_driver * drv, struct module * owner,
                                     const char * mod_name);

ARGUMENTS
       drv
           structure describing the driver

       owner
           owner module of drv

       mod_name
           module name string

DESCRIPTION
       This can be called by a parallel port device driver in order to receive notifications
       about ports being found in the system, as well as ports no longer available.

       If devmodel is true then the new device model is used for registration.

       The drv structure is allocated by the caller and must not be deallocated until after
       calling parport_unregister_driver.

       If using the non device model: The driver's attach function may block. The port that
       attach is given will be valid for the duration of the callback, but if the driver wants to
       take a copy of the pointer it must call parport_get_port to do so. Calling
       parport_register_device on that port will do this for you.

       The driver's detach function may block. The port that detach is given will be valid for
       the duration of the callback, but if the driver wants to take a copy of the pointer it
       must call parport_get_port to do so.

       Returns 0 on success. The non device model will always succeeds. but the new device model
       can fail and will return the error code.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   __PARPORT_REGISTER_D(9)