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HWN_CLIENT_QUERY_DEVICE_INFORMATION callback function (hwnclx.h)

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Implemented by the client driver to retrieve hardware notification component attributes.

Syntax

HWN_CLIENT_QUERY_DEVICE_INFORMATION HwnClientQueryDeviceInformation;

NTSTATUS HwnClientQueryDeviceInformation(
  [in]  PVOID Context,
  [out] PCLIENT_DEVICE_INFORMATION Information
)
{...}

Parameters

[in] Context

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.

[out] Information

Pointer to a buffer that receives the controller’s attributes.

Return value

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

Remarks

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

Requirements

Requirement Value
Minimum supported client Windows 10, version 1709
Minimum supported server Windows Server 2016
Target Platform Windows
Header hwnclx.h
IRQL PASSIVE_LEVEL

See also

Hardware notifications support

Hardware notifications reference