On Sun, Dec 06, 2020 at 09:32:30AM +0100, Greg Kroah-Hartman wrote: > On Sun, Dec 06, 2020 at 09:07:05AM +0200, Leon Romanovsky wrote: > > On Thu, Dec 03, 2020 at 10:26:31PM +0100, Maximilian Luz wrote: > > > Hello, > > > > > > Here is version two of the Surface System Aggregator Module (SAM/SSAM) > > > driver series, adding initial support for the embedded controller on 5th > > > and later generation Microsoft Surface devices. Initial support includes > > > the ACPI interface to the controller, via which battery and thermal > > > information is provided on some of these devices. > > > > > > The previous version and cover letter detailing what this series is > > > about can be found at > > > > > > https://lore.kernel.org/platform-driver-x86/20201115192143.21571-1-luzmaximilian@xxxxxxxxx/ > > > > > > This patch-set can also be found at the following repository and > > > reference, if you prefer to look at a kernel tree instead of these > > > emails: > > > > > > https://github.com/linux-surface/kernel tags/s/surface-aggregator/v2 > > > > > > Thank you all for the feedback to v1, I hope I have addressed all > > > comments. > > > > > > I think that it is too far fetched to attempt and expose UAPI headers > > for some obscure char device that we are all know won't be around in > > a couple of years from now due to the nature of how this embedded world > > works. > > No, that's not ok, we do this for loads of devices out there. If there > is a device that wants to be supported for Linux, and a developer that > wants to support it, we will take it. > > > More on that, the whole purpose of proposed interface is to debug and > > not intended to be used by any user space code. > > I thought that debugfs was going to be used for most of the debugging > code, or has that changed in newer versions of this patchset? https://lore.kernel.org/lkml/20201203212640.663931-9-luzmaximilian@xxxxxxxxx/#Z30include:uapi:linux:surface_aggregator:cdev.h + * Definitions, structs, and IOCTLs for the /dev/surface/aggregator misc + * device. This device provides direct user-space access to the SSAM EC. + * Intended for debugging and development. > > thanks, > > greg k-h
