> As long as this is not officially specified (by ACPI consortium and/or vendors) > and such special Devices exist, it is the best we can do. Platform specific methods will never be in the APCI spec -- by the virtue that they are non-standard and platform specific by definition. The vendors should be using vendor-specific PNP ID's. eg, IBM0068 when they put vendor specific devices in the DSDT. When that is not available, Linux is going very far out on a limb when it mines the name space to match specific internal variables, as there is no reason they could not match some totally different machine. Certainly the platform specific drivers that the vendors ship on Windows does not do this. I don't know what they do -- maybe DMI? -Len - 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