Messages in this thread | | | Date | Wed, 4 May 2011 16:29:54 +0100 | From | Alan Cox <> | Subject | Re: [RFC 1/5] platform-drivers-x86: add support for Technologic Systems TS-5xxx detection |
| |
> 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
| |