[syslinux] [RFC][PATCH] Gfxboot COMBOOT module

[Sebastian Herbszt]

H. Peter Anvin wrote:
> Sebastian Herbszt wrote:
>> 
>>> Without looking at the original gfxboot patch, it would seem like
>>> gfxboot did raw I/O but it is mearly a lingering reference.
>> 
>> This API is used by gfxboot core to open the graphical and other files (e.g. gfxboot.cfg).
>> 
> 
> Why not just use the normal file I/O calls for that?

Can you explain this a bit?
gfxboot core (bincode.asm) does use the callbacks, e.g. cb_fopen, for file I/O.
cb_fopen uses INT 22h AX=0007h. This is "the normal file I/O", right?
I am not sure what cb_readsector, which uses INT 22h AX=0019h, is good for.
gfxboot core says "internal function" and i was not able to find references to it.

- Sebastian