Function vexSerialPeekChar

pub unsafe fn vexSerialPeekChar(channel: u32) -> i32

Returns the next available byte to be read in the input buffer without removing it from the buffer.

Arguments

• channel: The serial communications channel to read from. Use 1 for stdio.

Return

The next byte in the input buffer, or -1 if no character is available to be read.

Safety

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