Open Source IOGear / Prolific Driver

In the forums, ryust has pointed out that there are is an Open Source version of the drivers for the Prolific chipset. This chipset is typically found in the serial-to-USB adapters that typically cost less than $15 US.

The drivers directly from Prolific tend to be problematic, which is why we have been recommending the KeySpan adapter (about $40US).

Give these Open Source Prolific drivers a try if you are using a serial adapter based on it (most commonly the IOGear chipset) and let us know how they work.


  1. Daniel said,

    Wrote on September 8, 2007 @ 1:57 pm

    I’ve been using these for a few years now and they weren’t working with MacCaching before, although I’ve found them to be MUCH better than the Prolific ones.

    I just downloaded and installed the latest version of the OSS Prolific driver (v 0.3.0 – August 11, 2007) and of MacCaching (v 0.6.2 113) and I am happy to report a success! This is the first time this combination of hardware and software has ever worked for me! Awesome!!

  2. James said,

    Wrote on September 8, 2007 @ 4:09 pm

    That is really awesome news!

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