Hi All, Recently 2 different patches have been submitted for drivers under drivers/platform/x86 to configure the performance-profile of modern laptops (see the actual RFC patch for what I mean with a performance-profile). One for the thinkpad_acpi driver and one for the hp-wmi driver. Since I don't want each pdx86 driver to invent its own userspace API for this I have started a dicussion about coming up with a standardized / common sysfs class / API for this on the pdx86 list: https://www.spinics.net/lists/platform-driver-x86/msg22794.html The sysfs API proposal which I'm sending out as RFC in this email thread is the result of me trying to distill that discussion into a concrete proposal. I have Cc-ed the linux-pm and linux-acpi lists because even though the trigger for doing this is 2 different pdx86 drivers, the resulting API should (must even) also be suitable for other platforms. I can e.g. see various modern ARM platforms also having similar functionality which they may want to export to userspace and the ideally the userspace code for allowing the end-user to configure/select a profile would be the same under ARM and x86. Talking about userspace I've also Cc-ed Bastien and Benjamin who are working on the userspace side of this. Regards, Hans
