INPUT_REGISTER_DEVIC(9)                  Input Subsystem                  INPUT_REGISTER_DEVIC(9)



NAME
       input_register_device - register device with input core

SYNOPSIS
       int input_register_device(struct input_dev * dev);

ARGUMENTS
       dev
           device to be registered

DESCRIPTION
       This function registers device with input core. The device must be allocated with
       input_allocate_device and all it's capabilities set up before registering. If function
       fails the device must be freed with input_free_device. Once device has been successfully
       registered it can be unregistered with input_unregister_device; input_free_device should
       not be called in this case.

       Note that this function is also used to register managed input devices (ones allocated
       with devm_input_allocate_device). Such managed input devices need not be explicitly
       unregistered or freed, their tear down is controlled by the devres infrastructure. It is
       also worth noting that tear down of managed input devices is internally a 2-step process:
       registered managed input device is first unregistered, but stays in memory and can still
       handle input_event calls (although events will not be delivered anywhere). The freeing of
       managed input device will happen later, when devres stack is unwound to the point where
       device allocation was made.

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