code: def cfmakeraw(tflags):
      
      # BSD: https://github.com/freebsd/freebsd/blob/master/lib/libc/gen/termios.c#L162
      # Linux: https://github.com/lattera/glibc/blob/master/termios/cfmakeraw.c#L20
      iflag, oflag, cflag, lflag, ispeed, ospeed, cc = tflags
      iflag &= ~flags('IMAXBEL IXOFF INPCK BRKINT PARMRK ISTRIP INLCR ICRNL IXON IGNPAR')
      iflag &= ~flags('IGNBRK BRKINT PARMRK')
      oflag &= ~flags('OPOST')
      lflag &= ~flags('ECHO ECHOE ECHOK ECHONL ICANON ISIG IEXTEN NOFLSH TOSTOP PENDIN')
      cflag &= ~flags('CSIZE PARENB')
      cflag |= flags('CS8 CREAD')
      return [iflag, oflag, cflag, lflag, ispeed, ospeed, cc]
docs: Given a list returned by :py:func:`termios.tcgetattr`, return a list
      modified in a manner similar to the `cfmakeraw()` C library function, but
      additionally disabling local echo.