w> I am not familiar with MDIO, but if its similar or a specific > implementation of a serial bus that does sound sane! It is a two wire serial bus. A good overview can be found here: https://www.totalphase.com/support/articles/200349206-MDIO-Background Andrew -- 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