vex_sdk::serial

Function vexSerialWriteChar

Source
pub unsafe fn vexSerialWriteChar(channel: u32, c: u8) -> i32
Expand description

Writes a single byte to the serial FIFO output buffer.

§Arguments

  • channel: The serial communications channel to write to. Use 1 for stdio.
  • c: The byte to write.

§Return

The number of bytes written, or -1 if an internal error occurred.

§Safety

Calls to jumptable functions are unsafe because jumptable functions are owned by VEXos and we cannot guarantee their safety.