Hi. I've made CAM driver for SiliconImage SiI3124/3132/3531 controllers: http://people.freebsd.org/~mav/siis.20090718.patch Driver supports Serial ATA and ATAPI devices, Port Multipliers (including FIS-based switching), hardware command queues (31 command per port) and Native Command Queuing. Testers are welcome. -- Alexander Motin