IOCTL_SERIAL_SET_FIFO_CONTROL IOCTL

The IOCTL_SERIAL_SET_FIFO_CONTROL request sets the FIFO control register (FCR). Serial does not verify the specified FIFO control information.

Major Code

IRP_MJ_DEVICE_CONTROL

Input Buffer

The AssociatedIrp.SystemBuffer member points to a client-allocated ULONG that is used to input FIFO control information.

Input Buffer Length

The Parameters.DeviceIoControl.InputBufferLength is set to the size, in bytes, of a ULONG.

Output Buffer

None.

Output Buffer Length

None.

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.

Requirements

   
Header ntddser.h (include Ntddser.h)