Much thanks goes to Claus Schroter (clausi@chemie.fu-berlin.de), the author of the GPIB package and the coordinator of The Linux Lab Project. The package can be obtained from ftp://ftp.llp.fu-berlin.de/pub/linux/LINUX-LAB/IEEE488/, and the home page of the project is at https://www.llp.fu-berlin.de/. A lot of software for data acquisition and experimental control can be found there.