> I have a PCMCIA rs232 for my t61 and it works great. > > When using a USB->rs232 under windows, running ubuntu in a VM, I notice > really low throughput or just tons of lag. > Not sure why, but the performance is abysmal.
The translation between USB/RS232 isn't very good (although, if it's REALLY slow in your case, it might be a driver issue, but just a guess). That said, for real-time data - for instance as a data entry point for GPS - USB/serial won't cut it. A real serial port is needed in that case. H _______________________________________________ New York PHP Community Talk Mailing List http://lists.nyphp.org/mailman/listinfo/talk NYPHPCon 2006 Presentations Online http://www.nyphpcon.com Show Your Participation in New York PHP http://www.nyphp.org/show_participation.php