cyber, the site you linked to is that of a designer of integrated circuits for audio and video. That means their ICs could be in any number of products under various brand names. It also means that the driver could be generic for most of the sonix ICs, so we would need to know which devices they were in and which work.
If the 'Sonix USB PC Camera for OS/2 (and eComStation)' is a generic driver then it should be possible to use both still and video cameras that use the chips, which means that webcams, at least some, would work with OS/2.