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Address Non-Standard Baud Rate Caching #208

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Address Non-Standard Baud Rate Caching #208

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10 changes: 10 additions & 0 deletions serial_unix.go
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Original file line number Diff line number Diff line change
Expand Up @@ -150,6 +150,9 @@ func (port *unixPort) SetMode(mode *Mode) error {
return err
} else if special {
requireSpecialBaudrate = true
// fall back to a standard speed for setTermSettings.
settings.Ispeed = unix.B9600
settings.Ospeed = unix.B9600
}
if err := port.setTermSettings(settings); err != nil {
return err
Expand Down Expand Up @@ -235,6 +238,13 @@ func nativeOpen(portName string, mode *Mode) (*unixPort, error) {
return nil, &PortError{code: InvalidSerialPort, causedBy: fmt.Errorf("error getting term settings: %w", err)}
}

if _, nonstandard := setTermSettingsBaudrate(mode.BaudRate, settings); nonstandard {
// the OS cached a non-standard baudrate. fall back to a standard speed for setTermSettings.
// the non-standard baudrate in mode.BaudRate will be set afterwards.
settings.Ispeed = unix.B9600
settings.Ospeed = unix.B9600
}

// Set raw mode
setRawMode(settings)

Expand Down