IOUSB, developed by IOSPIRIT, is a system for USB-device-drivers that allows them to access USB stacks via a uniform API. Thus any driver that builds upon it can theoretically be used with every USB-stack on the AMIGA.
Apart from the already existing support for Poseidon (Highway/Subway, MorphOS), support has been added for the Sirion-stack (Thylacine, Highway/Subway) in cooperation with the AmigaOS 4.0 development team. Thus it is now also possible to use devices covered by IOUSB with the Thylacine USB-board and the upcoming AmigaOS 4.0.
The update to version 2.0 can be found on our download-page. It also contains an update to version 1.1 of the iousbscanner.device fixing a timing-problem with the Epson Perfection 1650.