IOCTL_SERIAL_SET_BAUD_RATE IOCTL (ntddser.h)
The IOCTL_SERIAL_SET_BAUD_RATE request sets the baud rate on a serial controller device. The serial controller driver verifies the specified baud rate.
To obtain the baud rate, a client can use an IOCTL_SERIAL_GET_BAUD_RATE request.
Major code
Input buffer
The AssociatedIrp.SystemBuffer member points to a SERIAL_BAUD_RATE structure that a client allocates and sets to input the baud rate.
Input buffer length
The Parameters.DeviceIoControl.InputBufferLength member is set to the size, in bytes, of a SERIAL_BAUD_RATE structure.
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
| Requirement | Value |
|---|---|
| Header | ntddser.h (include Ntddser.h) |