On Thu, Jan 24, 2008 at 05:21:17PM -0500, Len Brown wrote: > _ADR returns a bus-specific format. > In the case of a video device, section B.6.1 says that > _ADR returns a 32-bit device ID, and that No, that's only true for the output devices - not the parent device. The parent device is what's interesting here, and the format of its _ADR method is not defined. > So I don't think you can use the numerical value returned > to have any particular meaning at all. > In particular, comparing it to magic number 0x10000 makes no sense. In practice, it's either going to be a PCI device ID or something custom. If it's custom, it's unlikely to be a PCI device ID. From that point of view, 0x10000 isn't magic - it's the lowest PCI device ID that stands a real chance of being the graphics hardware or bridge that the graphics hardware is attached to. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
