How to get the information about HDD

[sashadereh]

I need to get the information about HDD (device id, manufacturer, etc). I can't use WinAPI functions. I installed a driver, that provides direct access to system ports, so I can read a value from ata state register 0x1F7 (channel 0). In WinXP everything works fine, but on Win 7 the value from this port is FF every time. Note: I have no IDE devices in my laptop, just SATA (DVD and HDD). How can I get the information about the HDD drives?

[sashadereh]

Spildit, I'll try it and tell you the result, thanks!