ok, you can probably ignore a lot of it as it wont be relevant at this point.
protocol stuff is all the kinds of servers it can connect to so ignore
process_emm is how Emm's are handled. Again, at this point you aren't interested so i'd be inclined to set all to 0
cam_id, you probably should set to something reasonably realistic although its likely only used to grab the correct Emm's from the stream. I'd set to something like 08010203
card_server - ignore
decoder_type - not sure, you may have to fiddle with this.
mecm - I'd ignore at this point. Leave them all as 00
hash_control_words decides whether the CW's are hashed after they are extracted from the ECM. You probably want to turn this off (0)
ecm_nano_offset - decides where in the ECM to start scanning from in order to find the CW's. You'll need a decrypted ECM in order to fathom out this positioning. This is likely to need to increasing from 10 for normal N2 - Its usually 14 or higher.
swap_control_words - Gives the option to present the CW's to the descrambler either in the order found (ie 1 - 2 ) or the reverse order (ie 2 -1 ). You'll definately need to set this properly !!!
emm tables are descriptions of the stream tables where Emm's are found - ignore for now
emm_pid are the PID's where Emm's are found. You can probably ignore for now.
caid_priorities - decides which scrambling system has a priority in multicast situations. 1801 first means N2 has priority.
onid is original NetId. You should probably set this to the original netid for your provider but not sure what this is for UPC so ignore for the moment.
As you can see, you can ignore most settings as they are either for server connections or Emm stuff. The rest though, you have to get right !
With this CAM, you will need to make sure that its actually picking up the correct data for UPC as its code is optimised for particular US providers at the expense of generallity. You may have to modify the code itself and recompile. Make sure you turn on every debug option you can find so you can make a stab at determining any problems.
If you want to compile then you will need a linux image with a dreambox compile environment. There used to be a
DW school image around a while back that would do the job nicely.
Possibly, this source could be discussed/modified by interested parties if anybody fancies trying to get an open source N2 cam working ???