We are using a Xilinx FPGA which implements a series of i2c bus interfaces. We are planning on implementing a single-bit GPIO (XIIC_GPO_REG_OFFSET) which is included in that logic block to act as a MUX selector (also in the FPGA) between two separate i2c busses. This will require a GPIO driver in the linux kernel. Is it better to try and change the i2c-xiic.c code which already knows about the GPO register to handle that additional GPIO or should we be implementing the GPIO driver outside the i2c driver and then use the standard i2c-mux support available in newer kernels? Any guidance is welcome. Thanks, Robin Holt -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html