Constant

Meaning

COMPORTSIGNAL_NONE

COMPORTSIGNAL_DTR

DTR

COMPORTSIGNAL_DSR

DSR

COMPORTSIGNAL_RTS

RTS

COMPORTSIGNAL_CTS

CTS

COMPORTSIGNAL_RING

RING

COMPORTSIGNAL_DCD

DCD

COMPORTSIGNAL_TXD

TXD

COMPORTSIGNAL_RXD

RXD