def data(self, c):
if self._spi is not None:<EOL><INDENT>self._gpio.set_high(self._dc)<EOL>self._spi.write([c])<EOL><DEDENT>else:<EOL><INDENT>control = <NUM_LIT>   <EOL>self._i2c.write8(control, c)<EOL><DEDENT>
Send byte of data to display.