func changeGPSBaudRate(config *serial.Config, newRate int) error {
if config.Baud == newRate {
return nil
}
p, err := serial.OpenPort(config)
if err != nil {
return err
}
defer p.Close()
baud_cfg := createChecksummedNMEASentence([]byte(fmt.Sprintf("PMTK251,%d", newRate)))
_, err = p.Write(baud_cfg)
if err != nil {
return err
}
config.Baud = newRate
valid, err := detectGPS(config)
if !valid {
err = fmt.Errorf("Set GPS to new rate, but unable to detect it at that new rate!")
}
return err
}
