PARPORT_REGISTER_DRI(9) Parallel Port Devices PARPORT_REGISTER_DRI(9)NAMEparport_register_driver - register a parallel port device driver
SYNOPSIS
int parport_register_driver(struct parport_driver * drv);
ARGUMENTS
drv
structure describing the driver
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.
The drv structure is allocated by the caller and must not be
deallocated until after calling parport_unregister_driver.
The driverĀ“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 driverĀ“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. Currently it always succeeds.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 PARPORT_REGISTER_DRI(9)