Re: [RFC 1/5] platform-drivers-x86: add support for Technologic Systems TS-5xxx detection

Alan Cox
2011-05-04T15:29:26Z

> It is possible to make a BIOS call (Int 15h / Function B000h) to get
> board information, like the manufacturer ("TS"). It should be a safer
> way to check if we are on a Technologic Systems board. a intcall(0x15,
> &ireg, &oreg) should do the trick to check the platform, before checking
> the SBC ID. What do you think?

And that goes to 'How you do yo know it's safe to call INT 15 0xB000 -
especially as we are in 32bit mode and the BIOS is 16bit so you have to
call it very early meaning its a great way to make something else not
boot.

Does the board not support anything sane like DMI ?

Alan