Close getCommHandle GetPIO GetPIODirection Ioctl Open Read Read set_intermessage_delay SetPIO SetPIODirection Write Write

getCommHandle() HANDLE CSeaMaxLin::getCommHandle ( void  ) Get the handle to the actual communication medium. For RTU types it will be a normal file pointer, but TCP will be a socket handle. For this reason, it was decided to only return RTU file pointers. An attempt to get the socket handle will return an ENODEV error. Returns int Error code. Return values >0 Pointer to communications termios struct. -EBADF No open module. -ENODEV This is not an RTU type connection. References SeaMaxLinGetCommHandle().