KeySpan USB-to-serial adapter (Pete's notes)

Linux

The EmperorLinux 2.4.20 kernel on gazelle came with drivers for most KeySpan devices, including the KeySpan USA-19QW. When I plug the 19QW into a USB port on gazelle, the /var/log/messages file gets messages as the device is automatically configured.

It doesn't matter which USB port I plug the keyspan into: it becomes /dev/ttyUSB0. I configured minicom so that I can say "keyspan" from a bash command line to use it. See my minicom page for details.

MAC OS X

I webb'd to the Keyspan.com site and went to Downloads -> MAC OS X. My adapter is a USA-19QW, so I selected the High Speed USB Serial Adapter link and went through the install process.

It installed the driver and an application called "KeySpan Serial Assistant" in the Applications folder.

When I plugged in the USB cable, two special device files named /dev/cu.KeySerial1 and /dev/tty.KeySerial1 were created.


Pete Siemsen
Last modified: Mon Mar 13 11:01:35 MST 2006