In article <4f6d3e94.4080...@c3energy.com>, timekeepingntpl...@c3energy.com says... > > Hi all, > > I just discovered an interesting thing about the Sure board's serial - > USB converter. I went ahead and installed the driver. With this serial > - USB converter, which is a Silicon Labs CP210x chipset, no matter which > USB port I plug it into, it becomes COM6, which was the next one > available. With the Prolific based devices, including the TU-S9 and the > BU-353, each subsequent USB port I plug into becomes a new com port, so > those devices became COM3, COM4, and COM5 respectively as I plugged them > into succeeding USB ports. I can see pros and cons either way. > > With the Prolific way, if I move the device to a different port, I have > to have a different setup in the ntp.conf file, although you could > probably have multiple setups, and if nothing is attached to a given > port, then it gets ignored. > > With the Silicon Labs way, I only have to have one set of configuration > options in ntp.conf. However, what happens if I plug in another device > with the same chipset? I'm assuming the next one will become COM7. > But, now, if I unplug both and plug them back into the same ports, but > in the opposite sequence, I'll bet the original 1st device will now be > COM7 and the original 2nd device will be COM6. I can see how this would > cause some problems. > > I have not tested yet whether this board's USB port has a built in > driver in Linux. > > Sincerely, > > Ron
Ron. To "fix" wandering com ports in Windows, take a look at:- https://fedorahosted.org/fldigi/wiki/Documentation/HOWTO/Windows_USBSeri al (or:- http://preview.tinyurl.com/8592zvp Goes to the same site above.) Hope that helps a bit. Maybe there are similar tweaks in Linux? Dave B. _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
