Default [Q] adding device support to the kitchen and porting roms

first off if this is a wrong place than sorry but ....i wanted to know how to add device support to the kitchen?? my device is GT-S6012 galaxy music duos) rooted .......does it use yaffs file system..........if anybody could suggest me a method ...........i also want to know the procedure to port cm or any othe custom rom as i am using the stock rom right now .....any help would be appreciated !!!!