Hello, my Lenovo Yoga 9 14IAP7 includes several sensors above the screen which are connected to the Intel ISH of this device. The report descriptor of the sensor hub categorizes them in a custom usage. But fields under that usage are clearly those of a sensor. I went ahead and activated the sensor I believed to be for ambient light sensing and checked the values reported. The sensor behaves like a virtual ISH sensor. It does not report values on a synchronous request. But, when in buffered mode, reports the light-level as expected. A modified version of hid-sensor-custom.c allowed for other known sensors beside the intel-custom-hinge-sensor and exposed it under a modified name as an hid sensor. I slightly modified the hid-sensor-als.c to allow it to bind to this device and it works without problems. But, maybe a little late, I'm considering whether a fixup for the ish report descriptor would be the better way to go. I'll post the patches I used in reply to this message for discussion. And I'd really like to see at least the ambient light sensor working on mainline as an iio-sensor. Lenovo seems to use the sensors for some proprietary features of their Lenovo Vantage application under the name Lenovo Intelligent Sensing Solution. Regards, Philipp Jungkamp I used this fish script to query some information on the sensors: https://raw.githubusercontent.com/PJungkamp/yoga9-linux/main/intel-ish/find_sensors.fish Which yields this output on my device: https://raw.githubusercontent.com/PJungkamp/yoga9-linux/main/intel-ish/sensors.txt Here is the report descriptor for the relevant ISH device (already decoded text file): https://raw.githubusercontent.com/PJungkamp/yoga9-linux/main/intel-ish/ish_report_descriptor
