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IOCTL_SERIAL_SET_HANDFLOW control code

The IOCTL_SERIAL_SET_HANDFLOW request sets the configuration of handshake flow control. The serial controller driver verifies the specified handshake flow control information.

To obtain handshake flow control information, a client can use an IOCTL_SERIAL_GET_HANDFLOW request.

For more information about settings for handshake flow control, see SERIAL_HANDFLOW.

Input Parameters

The AssociatedIrp.SystemBuffer member points to a client-allocated SERIAL_HANDFLOW structure that is used to input the handshake flow control information.

The Parameters.DeviceIoControl.InputBufferLength member is set to the size, in bytes, of a SERIAL_HANDFLOW structure.

Output Parameters

None.

I/O Status Block

The Information member is set to zero.

The Status member is set to one of the Generic Status Values for Serial Device Control Requests. A status of STATUS_INVALID_PARAMETER indicates the specified handshake flow control is not valid.

Requirements

Header

Ntddser.h (include Ntddser.h)

See also

IOCTL_SERIAL_GET_HANDFLOW
SERIAL_HANDFLOW

 

 

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