Hi Oliver, >> + aqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_MAJOR, >> + 1, 1, &aqc111_data->fw_ver.major); >> + aqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_MINOR, >> + 1, 1, &aqc111_data->fw_ver.minor); >> + aqc111_read_cmd(dev, AQ_ACCESS_MAC, AQ_FW_VER_REV, >> + 1, 1, &aqc111_data->fw_ver.rev); > > Why read the stuff you don't need? fw_ver is used below to determine phy access mode. fw_ver.rev is not used in this exact patch, thats true, but it gets reported in later patches in the set. Regards, Igor