[syslinux] Read disk with open()/read()?

[H. Peter Anvin]

Gordon Schumacher wrote:
> H. Peter Anvin <hpa at zytor.com> wrote on Sat, 15 Dec 2007 12:31:52 -0800:
>> If you're keying on *data*, like strings, then you have to have a 
>> dispatch function somewhere, which will pull in every single device 
>> driver in any binary.
>>
>> Hence opendev(), which only pulls in the requested device drivers.
> 
> Do you mean that with respect to being able to open a *specific* disk? 
> I just was after the ability to read from the disk that syslinux is
> currently running on, which doesn't seem require anything past the
> INT22/19h call (at least not under isolinux, which is the only place
> I've tested it).

The underlying mechanism is independent -- I'm talking about COM32 
library code.

	-hpa