def command(self, *cmd):
        """
        Sends a command or sequence of commands through to the I²C address
        - maximum allowed is 32 bytes in one go.

        :param cmd: A spread of commands.
        :type cmd: int
        :raises luma.core.error.DeviceNotFoundError: I2C device could not be found.
        """
        assert(len(cmd) <= 32)

        try:
            self._bus.write_i2c_block_data(self._addr, self._cmd_mode,
                                           list(cmd))
        except (IOError, OSError) as e:
            if e.errno in [errno.EREMOTEIO, errno.EIO]:
                # I/O error
                raise luma.core.error.DeviceNotFoundError(
                    'I2C device not found on address: 0x{0:02X}'.format(self._addr))
            else:  # pragma: no cover
                raise
def command ( self , * cmd ) : assert ( len ( cmd ) <= 32 ) try : self . _bus . write_i2c_block_data ( self . _addr , self . _cmd_mode , list ( cmd ) ) except ( IOError , OSError ) as e : if e . errno in [ errno . EREMOTEIO , errno . EIO ] : raise luma . core . error . DeviceNotFoundError ( 'I2C device not found on address: 0x{0:02X}' . format ( self . _addr ) ) else : raise
Sends a command or sequence of commands through to the I²C address
        - maximum allowed is 32 bytes in one go.

        :param cmd: A spread of commands.
        :type cmd: int
        :raises luma.core.error.DeviceNotFoundError: I2C device could not be found.