SFP_EEPROM_FC_TX_TECH_ADDR
u8 val[SFP_EEPROM_FC_TX_TECH_ADDR + 1], check_limiting_mode = 0;
SFP_EEPROM_FC_TX_TECH_ADDR + 1,
copper_module_type = val[SFP_EEPROM_FC_TX_TECH_ADDR];