Overview of the Gpiobtn technology.
The Gpiobtn technology is not associated with any headers.
|_HWN_CLX_EXPORT_INDEX||Defines the position for each of the Hardware Notification exports in the export table.|
|HWN_CLIENT_GET_STATE||Implemented by the client driver to get hardware notification component state. It is invoked when a user requests status information.|
|HWN_CLIENT_INITIALIZE_DEVICE||Implemented by the client driver and is invoked as a result of a call to EVT_WDF_DEVICE_PREPARE_HARDWARE.|
|HWN_CLIENT_QUERY_DEVICE_INFORMATION||Implemented by the client driver to retrieve hardware notification component attributes.|
|HWN_CLIENT_SET_STATE||Implemented by the client driver to set hardware notification component state. It is invoked when a user wants to change the state of a driver.|
|HWN_CLIENT_START_DEVICE||Implemented by the client driver to start the hardware notification component. It is invoked as a result of a call to EVT_WDF_DEVICE_D0_ENTRY.|
|HWN_CLIENT_STOP_DEVICE||Implemented by the client driver TO start the hardware notification component. It is invoked as a result of a call to EVT_WDF_DEVICE_D0_EXIT.|
|HWN_CLIENT_UNINITIALIZE_DEVICE||Implemented by the client driver and invoked as invoked as a result of a call to EVT_WDF_DEVICE_RELEASE_HARDWARE. This callback function uninitializes the hardware notification component.|
|HwNProcessAddDevicePostDeviceCreate||Creates I/O queues. It should be called after the client driver’s EVT_WDF_DRIVER_DEVICE_ADD callback function is invoked and the device object has been created.|
|HwNProcessAddDevicePreDeviceCreate||Supplies the device prepare/release and entry/exit callbacks to the Windows Driver Foundation (WDF) for transitioning the device into different states.|
|HwNRegisterClient||Registers the hardware notification client driver and its callback functions with the class extension.|
|HwNUnregisterClient||Unregisters the hardware notification client driver and its callback functions with the class extension. This function should be invoked when the client driver is unloaded.|
|_CLIENT_DEVICE_INFORMATION||The CLIENT_DEVICE_INFORMATION structure is used by the hardware notification callback HWN_CLIENT_QUERY_DEVICE_INFORMATION to return the total number of hardware notifications that the client device driver provides.|
|_HWN_CLIENT_REGISTRATION_PACKET||Hardware Notification client driver registration packet that is passed to the class extension when a client driver is registered. Contains version information and client driver callback functions.|