UART_PUT_BYTE callback function (uart.h)
Writes a data byte to the UART device.
Syntax
UART_PUT_BYTE UartPutByte;
UART_STATUS UartPutByte(
[_Inout_] PCPPORT Port,
UCHAR Byte,
BOOLEAN BusyWait
)
{...}
Parameters
[_Inout_] Port
A pointer to a _CPPORT structure that contains the address of the port object that describes the UART hardware.
Byte
The byte to write to the UART hardware.
BusyWait
A flag to control whether this routine will busy-wait (spin) for the UART hardware to be ready to transmit.
Return value
Returns UART_STATUS-type value that indicates success or failure of the operation.
Remarks
Register your implementation of this callback function by setting the appropriate member of UART_HARDWARE_DRIVER.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10, version 1803 |
| Header | uart.h |