On Jan 17, 2012, at 7:07 PM, Scott Ribe wrote: > On Jan 17, 2012, at 7:11 PM, Robert Rice wrote: > >> Prolific provides documentation for the simple report protocol for the >> device. I suspect that an appropriate driver already exists for this device >> but how would I find it?
I actually rather doubt that a driver for this device already exists, unless you happen to google around for "Prolific USB 1284" and get a hit for a Mac OS X driver somewhere. The vendor's own web site suggests a rather strong Windows-bias, however, and I would have to guess that writing a KExt is in your future. Once you've done that, whatever protocol you talk to the /dev node is more or less up to you, and should be notionally as easy as opening the device for R/W from your MacRuby program and doing the appropriate data exchange with it. I would recommend starting here: http://developer.apple.com/library/mac/#referencelibrary/GettingStarted/GS_HardwareDrivers/_index.html :-) - Jordan
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