: I2C controllers often have aggressive power management. For stable calibration and touch response, it is a best practice to disable "Allow the computer to turn off this device to save power" in the Intel Serial IO I2C Host Controller properties. Toradex Community Implementation Workflow Driver Initialization WdfFdoInitSetFilter EvtDriverDeviceAdd callback to define your driver as a lower filter. I/O Queue Handling : Create queues to process IOCTLs passed from MsHidKmdf.sys . You must handle specific WDF HID Minidriver IOCTLs to report device capabilities. User-Space Interaction
In a KMDF (Kernel-Mode Driver Framework) environment, calibration is typically handled through three main layers: SileadTouch.sys - GitHub kmdf hid minidriver for touch i2c device calibration best
raw values in the report buffer.
To ship your KMDF HID minidriver:
When done correctly, kernel-mode calibration provides seamless, low-latency touch accuracy without user intervention. : I2C controllers often have aggressive power management