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Originally Posted by Phoenix32
Well, we must have talked to different Snap Engineers then, LOL (typical of them back then).
What I was able to get out of them was that the controller did in fact support LBA48 (after I proved it them, the asshats)
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We must have been talking to different people, since I went through the same thing you did, to convince them the controller could do LBA48.
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but the BIOS would need upgraded (the actual firmware portion) and then a driver (which you mentioned) inserted into the Snap OS for the 4100 and LBA48. The driver would be an easy fix, but the hard firmware would not be. In fact, they told me some used ROMs instead of EPROMS, which could then accordingly not be updated without a chip change. I stopped pursuing it myself at that point, but do not know what if anything came after that.
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I think they were confused. There are callbacks available in the BIOS, but they only work in real mode, not protected mode. Thus, they aren't usable from inside SnapOS. Once SnapOS loads, the only thing the BIOS gets used for is normal reboots and the tail end of panic processing (which, as far as I could tell, never worked right anyway).
I actually spent a couple days with their engineering staff in their office going over all of this, getting an estimate on the amount of time it would take, and so on, before management (theirs, not mine) decided they didn't want to pursue it for business reasons.