[Felipe Navarro] wanted to add a few serial ports to his computer, but couldn’t find an adapter that suited his needs. So, he built his own. His Quad Serial device is a nicely designed converter that ...

Despite concerted efforts to kill them, serial ports are alive and well, especially in embedded system. True, most of them end in a USB port, these days, but there’s still a lot of gear with a DE-9 ...

We may receive a commission on purchases made from links. As technology has advanced, the types of ports on computers have also changed for the better. However, that doesn't mean devices with older ...

In Part I of this article, I briefly mentioned the generic USB driver in the context of getting a USB device to communicate through it easily, with no custom kernel programming. Unfortunately, I ...

To identify the specific USB ports and connectors on your devices, you can simply look at their shape and color, or check ...

Some software and specialty hardware requires you to use a traditional serial port. Serial ports have been around for decades and work by transferring one bit of data at a time at a relatively slow ...

A socket that connects to a serial interface (one bit following another over one line). Serial ports are widely used by sensors for data acquisition, and they were standard on early computers for ...

The operation and description of the UART serial interface through USB is discussed in this application note. In addition, the firmware application code in C language, containing communication ...

In my last column [see LJ December 2002], we covered the serial layer in the 2.5 (hopefully soon to be 2.6) kernel tree. We mentioned in passing that a USB-to-serial driver layer in the kernel helps ...