rt2x00.serialmonkey.com

Hello,
I am trying to understand encryption process on ralink dirver, I am working on rt3090 device using driver "rt2800pci" on linux-2.6.38 .
My question is if hardware encryption on, it there a way to modify the packets after hardware ciphering finished or it will send the packets directly after finishing ciphering.

I want also to ask about manual for the device about how it works and the existing registers and the function for each if there exists one, I searched the internet and couldn't find one.

Thanks