Golden System Reference Design Provides Access to Nonexistent I2C Controller - Golden System Reference Design Provides Access to Nonexistent I2C Controller Description When the Golden System Reference Design runs on the Cyclone V SoC FPGA Development Board, the Linux device tree is populated with two I2C controllers: /dev/i2c-0 and /dev/i2c-1 . However, only /dev/i2c-0 is physically available on the development board. Resolution When running the Golden System Reference Design on the Cyclone V SoC FPGA Development Board, do not use the /dev/i2c-1 device with the Linux 13.02 release. To prevent Linux applications from attempting to access /dev/i2c-1 , you can perform the following steps: Update the device tree file to remove or disable the /dev/i2c-1 device. Compile the device tree. Replace the default device tree with the new device tree. Custom Fields values: ['novalue'] Troubleshooting novalue True ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 13.0 ['Cyclone® V FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']