Documentation/hid/hid-sensor.rst

2 HID Sensors Framework
4 HID sensor framework provides necessary interfaces to implement sensor drivers,
5 which are connected to a sensor hub. The sensor hub is a HID device and it provides
6 a report descriptor conforming to HID 1.12 sensor usage tables.
8 Description from the HID 1.12 "HID Sensor Usages" specification:
9 "Standardization of HID usages for sensors would allow (but not require) sensor
51 - Core HID driver
56 The core driver (hid-sensor-hub) registers as a HID driver. It parses
58 with name HID-SENSOR-xxxx (where xxxx is usage id from the specification).
62 HID-SENSOR-200073 is registered for an Accelerometer 3D driver.
86 	int (*suspend)(..): Callback when HID suspend is received
87 	int (*resume)(..): Callback when HID resume is received
147 the usage id of X axis. HID sensors can provide events, so this is not necessary
154 HID Custom and generic Sensors
158 HID Sensor specification defines two special sensor usage types. Since they
174 …/sys/devices/pci0000:00/INT33C2:00/i2c-0/i2c-INT33D1:00/0018:8086:09FA.0001/HID-SENSOR-2000e1.6.au…
216   /sys/bus/platform/devices/HID-SENSOR-2000e1.6.auto/feature-0-200316$ grep -r . *
233 Once enabled and powered on, sensor can report value using HID reports.
236 	/dev$ tree | grep HID-SENSOR-2000e1.6.auto
237 	│   │   │   ├── 10:53 -> ../HID-SENSOR-2000e1.6.auto
238 	│   ├──  HID-SENSOR-2000e1.6.auto