Hi
@pascalbythree: I think you're barking up the wrong tree... What would make you think, that someone would put low-level disk IO-operations from the kernel and RTL level, into a high-level framework like the /lazarus/ component framework?!?
The functions/procedures, structures, kernel-calls & signal-handlers are all there in FPC, for you to use as you see fit ...but alas, it entails work for *you* to make it all happen, *no-one* is giving you more than that!
If you feel like it and really need it, you'll figure it out ...and then /hopefully/ share your findings with the rest of us.
In short: Do it yourself!
Regards Benny