In-character? Ye-no... No I don't. Well this is embarrassing. I have no knowledge skills. What was I drinking when I built this character? Why did people let me do this? D:
Anyway. Embarrassment aside, out of character... I did do a fair bit of studying of matrix rules and architecture before building my first Technomancer. There have been a couple of useful document, and a couple of members on here who have been excellent for advice. Spoofing your way in has two methods. The first isn't really doing it, rather you're just using Spoof Command in order to get a device to do something. Unwired goes a bit into it when discussing advanced spoofing, giving an example of pretending to be the controlling rigger. It's very limited though and in reality it's recommended to simply hack your way in. To basically do the rigger stuff I'd be spoofing an admin command, which would be Hacking + Spoof - 6.