1PARPORT_REGISTER_DRI(9)      Parallel Port Devices     PARPORT_REGISTER_DRI(9)
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NAME

6       parport_register_driver - register a parallel port device driver
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SYNOPSIS

9       int parport_register_driver(struct parport_driver * drv);
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ARGUMENTS

12       drv
13           structure describing the driver
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DESCRIPTION

16       This can be called by a parallel port device driver in order to receive
17       notifications about ports being found in the system, as well as ports
18       no longer available.
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20       The drv structure is allocated by the caller and must not be
21       deallocated until after calling parport_unregister_driver.
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23       The driver's attach function may block. The port that attach is given
24       will be valid for the duration of the callback, but if the driver wants
25       to take a copy of the pointer it must call parport_get_port to do so.
26       Calling parport_register_device on that port will do this for you.
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28       The driver's detach function may block. The port that detach is given
29       will be valid for the duration of the callback, but if the driver wants
30       to take a copy of the pointer it must call parport_get_port to do so.
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32       Returns 0 on success. Currently it always succeeds.
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35Kernel Hackers Manual 3.10         June 2019           PARPORT_REGISTER_DRI(9)
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