spec now includes support for the new OMS UMX model motor controller. The UMX has a USB interface but appears as a serial device when the proper kernel drivers are available on Linux and Mac OSX. See the oms help file for details.
spec 6.0 release includes initial support for the Ketek DPP2 digital pulse processor, as used in the GE Measurement & Control Meteor0D energy dispersive X-ray detector. See the ketek help file for details.