IOCTL_HID_ACTIVATE_DEVICE control code

The IOCTL_HID_ACTIVATE_DEVICE control code activates a HIDClass device, which makes it ready for I/O operations.

Input Buffer

The driver calls IWDFIoRequest::GetInputMemory to retrieve the buffer that contains a collection identifier, as a ULONG value, of the collection to activate or deactivate.

Input Buffer Length

The size of a ULONG value.

Output Buffer

None.

Output Buffer Length

None.

Status block

HID minidrivers that carry out the I/O request to the device must also:

• Call IWDFIoRequest::SetInformation to set the number of bytes to zero.
• Call IWDFIoRequest::Complete with S_OK to complete the request without error. Otherwise, set the appropriate HRESULT error code.

Requirements

See also

IOCTL_HID_ACTIVATE_DEVICE

IOCTL_HID_DEACTIVATE_DEVICE

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