Kernel Menu Configuration Follow the steps below to enable the kernel configuration for I2C. Under the root directory of freelight-u-sdk, type the following command to enter the kernel menu configuration GUI. make linux-menuconfig Enter the Device Drivers menu. Figure 1. Device Drivers Enter the I2C support menu. Figure 2. I2C Support Enter the I2C Hardware Bus Support menu. Figure 3. I2C Hardware Bus Support Select the Synopsys DesignWare Platform option. Figure 4. Synopsys DesignWare Platform Save your change before you exit the kernel configuration dialog.