HWN_CLIENT_START_DEVICE callback

Description

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.

Parameters

Context [in]

Pointer to the client driver's context information. This memory space is available for use by the client driver. It is allocated as part of the framework object context space by WdfDeviceCreate. For more information, see HWN_CLIENT_REGISTRATION_PACKET and Framework Object Context Space.

Return value

Return STATUS_SUCCESS if the operation succeeds. Otherwise, return an appropriate NTSTATUS error code.

Prototype

HWN_CLIENT_START_DEVICE HwnClientStartDevice;

NTSTATUS HwnClientStartDevice(
  _In_ PVOID Context
)
{ ... }

typedef HWN_CLIENT_START_DEVICE *PHWN_CLIENT_START_DEVICE;

Remarks

Register your implementation of this callback function by setting the appropriate member of HWN_CLIENT_REGISTRATION_PACKET and then calling HwNRegisterClient.

See also

Hardware notifications support

Hardware notifications reference