Acpi Ibm0068 Guide

# Check the driver binding ls -l /sys/bus/acpi/devices/IBM0068:00/driver

// Open the input device in read-only mode fd = open(EVENT_DEVICE, O_RDONLY); if (fd == -1) fprintf(stderr, "Error: Cannot open %s (%s)\n", EVENT_DEVICE, strerror(errno)); return EXIT_FAILURE; acpi ibm0068

The most direct solution for Windows 10 and 11 users is to install the official driver from the Lenovo Support Website. if (fd == -1) fprintf(stderr