If it is the new Telus chromecast box you are dealing with, don't bother using the chowmain driver. It will screw up the box connection with Telus server and it will be much faster and easier to just build your IR driver...I wasted money on the driver and 6 hours of my time to figure that out
But if anyone out there have the Telus chromecast box working with no problem, please do leave a message here. Thanks