On Fri, Nov 06, 2020 at 04:47:35PM +0000, Flavio Suligoi wrote: > > Or something like that. RPX is the root port 14.1 and if I read the > > above right both the bridge and the EXAR device have device and function > > 0. > > All ok now, I've added the bridge (I had to use the BIOS sources) and > not it works: I suppose not -> now ;) Glad to hear this! So, maybe you can add some bits to the documentation [1] based on your experience? Note, I have sent a series [2] to amend it a bit, and your input welcome! [1]: Documentation/firmware-guide/acpi/gpio-properties.rst [2]: https://lore.kernel.org/linux-acpi/20201029193243.61546-1-andriy.shevchenko@xxxxxxxxxxxxxxx/T/#u -- With Best Regards, Andy Shevchenko