Function SerialPort_write 

pub unsafe extern "C" fn SerialPort_write(
    self_: SerialPort,
    buffer: *mut u8,
    startPos: c_int,
    numberOfBytes: c_int,
) -> c_int

Write the number of bytes from the buffer to the serial interface

Arguments

• buffer - the buffer containing the data to write
• startPos - start position in the buffer of the data to write
• numberOfBytes - number of bytes to write

Returns

number of bytes written, or -1 in case of an error