In my target I have a serial port which I have on /tyCo/1.
I use "open( "/tyCo/0", O_RDWR, 0 )" to open the channel, later on I try to
read something from the port using the following: read( DeviceHandle,
SomeCharPointer, 1 ). If nothing has arrived on the channel, i would expect
the read-call to return immediately with return value 0. That doesn't seem
to be tha case - am I missing some initialisation with ioctl() or is
something else missing?