Add constants to CP210x
CP2102 add DTR & RTS control
add getModemStatus() etc
add getLast[DCD, CTS, RTS, etc]
small fix in MS_DTR_MASK & MS_RI_MASK
init: Prolific Technology Inc PL3203
Pl2303SerialDriver bitbang
some comments
getModemStatus() for FTDI (not tested)
FTDI CTS hack
fix FTDI getModemStatus()
add mRead/WriteEndpoint to FtdiSerialDriver
Merge branch 'hohomaster'
Remove setBaudRate from Pl2303SerialDriver