the
serial line.

<H2>Protocol Basics</H2>

The host and the camera exchange with data packets and individual bytes.
Serial line paramaters used are: 8bit, no parity.  No flow control is
used.  All arithmetic data is transmitted least significant byte first
("little endian").

<H2>Protocol Elements</H2>

The elementary units of the protocol are:

<TABLE BORDER=1>
<TR><TD>Initialization Byte</TD><TD>NUL</TD><TD> 0x00</TD></TR>
<TR><TD>Action Complete Notification</TD><TD>ENQ</TD><TD> 0x05</TD