Kmdf Hid Minidriver For Touch I2c Device Download Site
// Device detection NTSTATUS TouchI2C_CreateDevice(WDFDRIVER Driver, PWDFDEVICE_INIT DeviceInit) { WDFDEVICE device; NTSTATUS status;
// Copy the HID descriptor to the buffer RtlCopyMemory(buffer, hidDescriptor, sizeof(hidDescriptor)); }
#include <wdf.h>
// I2C communication NTSTATUS TouchI2C_ReadI2C(WDFDEVICE device, PVOID buffer, ULONG bufferLength) { // Implement I2C read transaction } kmdf hid minidriver for touch i2c device download
In the world of computer peripherals, touch devices have become increasingly popular. One such device is a touch I2C device, which allows users to interact with their computers using gestures and taps on a touch-sensitive surface. To enable this device to work seamlessly with Windows operating systems, a specialized driver is needed. In this story, we'll explore the development of a KMDF HID minidriver for a touch I2C device.
A hardware engineer, Alex, had designed a new touch I2C device that was compact, efficient, and highly responsive. However, when it came to integrating the device with Windows, Alex encountered a significant challenge. The device used the I2C protocol to communicate with the computer, but Windows didn't have a built-in driver to support this device.
Alex began by setting up the development environment, installing the Windows Driver Kit (WDK) and the Windows SDK. They then created a new KMDF driver project using the WDF (Windows Driver Framework) template. In this story, we'll explore the development of
return STATUS_SUCCESS; }
// Create the device object status = WdfDeviceCreate(&DeviceInit, WDF_NO_OBJECT_ATTRIBUTES, &device); if (!NT_SUCCESS(status)) { return status; }
// Initialize the I2C communication status = TouchI2C_InitI2C(device); if (!NT_SUCCESS(status)) { WdfDeviceClose(device); return status; } The device used the I2C protocol to communicate
// HID descriptor VOID TouchI2C_GetHidDescriptor(WDFDEVICE device, PVOID buffer, ULONG bufferLength) { // Define the HID descriptor UCHAR hidDescriptor[] = { // Report descriptor 0x06, 0x00, 0x00, // Usage Page (Generic Desktop) 0x15, 0x00, 0x00, // Logical Minimum 0x26, 0xFF, 0x00, // Logical Maximum 0x35, 0x00, 0x00, // Physical Minimum 0x45, 0x00, 0x00, // Physical Maximum 0x75, 0x08, // Report Size 0x95, 0x01, // Report Count 0x85, 0x01, // Report ID 0x05, 0x08, // Usage (Multi-touch) 0x19, 0x01, // Usage Minimum 0x29, 0x01, // Usage Maximum 0x25, 0x01, // Logical Minimum 0x35, 0x01, // Physical Minimum 0x45, 0x01, // Physical Maximum 0x75, 0x08, // Report Size 0x95, 0x01, // Report Count 0xB1, 0x02, // Feature };
Alex knew that to get the device working, they needed to develop a custom driver. After researching the available options, Alex decided to create a KMDF (Kernel-Mode Driver Framework) HID (Human Interface Device) minidriver. This type of driver would allow the touch I2C device to be recognized as a HID device, enabling Windows to automatically load the driver and provide a seamless user experience.
The KMDF HID minidriver for the touch I2C device was a success, enabling users to interact with their computers using the touch-sensitive surface. Alex's hard work and dedication to developing a high-quality driver paid off, providing a seamless user experience for those using the device.
