package main

import "errors"

// errUARTBusy is returned when the port is held for OTA (poller should not treat as unplug).
var errUARTBusy = errors.New("uart busy (OTA in progress)")

// errOTAInProgress is returned when a second OTA upload is attempted while one is running.
var errOTAInProgress = errors.New("OTA upload already in progress")

// managedSerial is an alias for managedHost (UART-first history).
type managedSerial = managedHost