ENVCTRL_CPUVOLTAGE_MON
if (!(pchild = envctrl_get_i2c_child(ENVCTRL_CPUVOLTAGE_MON)))
ret = envctrl_read_cpu_info(read_cpu, pchild, ENVCTRL_CPUVOLTAGE_MON, data);
pchild->mon_type[chnl_no] = ENVCTRL_CPUVOLTAGE_MON;