A feature report is sent in response to a request from the driver. The sensor sends either a feature report or an input report to the HID class driver.If you are creating the firmware for a compatible sensor, you’ll need a basic understanding of the I/O model supported by the class driver. The custom sensor presents itself to the sensor API as a custom device with unique properties. This class allows a sensor manufacturer to integrate a device not found in the previous list: For example, a carbon monoxide sensor. In addition to the eleven sensors covered in the previous lists, the class driver also supports a Custom class. ![]() ![]() The following illustration depicts the flow of data back and forth from two sensor applications down through the driver stack and, finally, to the hardware itself. Starting with Windows 8, the Windows operating system includes an in-box sensor HID Class driver (SensorsHIDClassDriver.dll), that supports eleven types of sensors that communicate using the HID transport.
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