Making a PNP BIOS Call
Posted on 1997-03-12
I'd like to make a call to the Plug-N-Play BIOS in Win95 and am not clear on a few things.
1. The PNP docs say you are supposed to make a FAR call to the entry point specified in the $PNP block, and that you should find the block by probing memory. Is it true that you access the PNP BIOS with a call, rather than a software interrupt?
2. Is there an OS call you can make to get this entry point instead of probing for the $PNP block? Perhaps by calling the Win95 Configuration Manager?
3. The PNP spec talks about making 32-bit protected calls to the PNP BIOS, but isn't clear on whether that's possible from Win95. Is it possible to make a FAR call to a low memory address from a Win32 app?