Hi Srinivas, On Sat, 2016-06-11 at 05:13 -0700, Srinivas Pandruvada wrote: > Starting from Cherrytrail, multiple generation of Intel processors > offers > on package sensor hub. Several recent tablets, 2-in-1 convertible > laptops > are using ISH instead of external sensor hubs. This resulted in lack > of > support of sensor function like device rotation and auto backlight > adjustment. > In addition, depending on the OEM implementation, support of ISH is > required > to support low power sleep states. > > The support of ISH on Linux platforms is not new. Android platforms > with > Intel SoCs had this support for a while submitted by Daniel Drubin. > This patcheset is reusing most of those changes with clean up and > removing Android platform specific changes. > > The user mode ABI is still same as external sensor hubs using Linux > IIO. So existing user mode software should still work. > This series primarily brings in new HID transport used in ISH. > > Thanks to the community members who tested RFC patches and provided > feedback. > > For users testing on Linux distributions using IIO sensor proxy, > a short term work around is required till we have debugged this > issue. > In systemd unit file iio-sensor-proxy.service > In the section "[Unit]" add > After=multi-user.target > Thank you so much for the updated patchset. It works! Auto rotation and brightness work out of a cold boot and also after waking up from suspend. Suspend/Wakeup is also back to usual speed. One minor gripe I have is that the brightness seems to be set to 100% every time upon reboot. So if I set brightness to 50% e.g., and reboot, the brightness is reset to 100% again (not initially but right after iio-sensor-monitor loads). Of course, this might not have anything to do with the driver, but I just thought I should mention it here as long as I am not sure about the cause. I attach journal logs for your perusal. I have now tested the patches both against kernel 4.7rc2 and 4.6.2, and it works just fine in both cases. My test device is a Lenovo Thinkpad Yoga 260. Thanks and best wishes. -- Atri Bhattacharya Sat 11 Jun 15:00:41 CEST 2016 Sent from openSUSE Tumbleweed (20160609) (x86_64) on my laptop.
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