I have a bunch of Kenwood TK-2100 VHF radios that are re-programmable via the serial port. I have a DOS-based application that works with the radios, but is only reliable with computers with two (2) ...

I had a thread over in the Programmer's Symposium, but I think the line of questioning has turned more into a kernel issue. I have been tasked with getting response time for writing a single byte to ...

Just like a PC’s USB port, the serial port on a PC can also in some cases serve as a power supply. A USB port can provide as much as 500 mA at 5V, but a serial port provides less power. Even with the ...

Ok, the title is a bit misleading. Like most things in life, it really isn’t infinite. But I’m going to show you how you can use a very interesting Linux feature to turn one serial port from a ...