On Mon, Nov 05, 2012 at 10:43:17AM -0700, Bjorn Helgaas wrote: > > It should already be unique in case of ACPI. We use ACPI _HID and _UID to > > achieve that. > > Using only _HID and _UID to guarantee uniqueness means you're relying > on a property of the BIOS, so you're vulnerable to BIOS bugs. > > If there's an ACPI Device for I2C adapters, why wouldn't you just use > its device name as set in acpi_device_register() (basically a _HID + > instance number)? That's a good point - we could change to use that instead (the platform code in linux-pm tree uses _HID + _UID but I guess it is pretty trivial to change). -- 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
