I have settled on a Startech ICUSB2321F (which uses a FTDI chip).
For soekris net5501:
Dell running OpenBSD:cu -l cuaU0 -s 19200
For PC Engines apu:
MacOSX 10.6.8:
cu -l ttyu0 -s 115200
Mac OS 10.15,= and 11:
cu -l /dev/cu.usbserial-###### -s 115200
where ###### is the serial number of the device. The device is easily found by
ls /dev | grep cu
Posted by Gordon, No Hair Blog, May 30, 2020
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