{
    "PLATFORM":
    {
        "num_psus":2,
        "num_fantrays":3,
        "num_fans_pertray":1,
        "num_ports":54,
        "num_temps": 3,
        "pddf_dev_types":
        {
            "description":"AS4630 - Below is the list of supported PDDF device types (chip names) for various components. If any component uses some other driver, we will create the client using 'echo <dev-address> <dev-type> > <path>/new_device' method",
            "CPLD":
            [
                "i2c_cpld"
            ],
            "PSU":
            [
                "psu_eeprom",
                "psu_pmbus"
            ],
            "FAN":
            [
                "fan_ctrl",
                "fan_eeprom",
                "fan_cpld"
            ],
            "PORT_MODULE":
            [
                "pddf_xcvr"
            ]

        },
        "std_kos":
        [
            "i2c_dev",
            "i2c_mux_pca954x",
            "optoe"
        ],
        "description":"kernel modules are loaded while moving to pdf mode, but they should not be unloaded while moving to nonpddf mode.",
        "std_perm_kos":
        [
            "i2c-i801",
            "i2c-ismt"
        ],

        "pddf_kos":
        [
            "pddf_client_module",
            "pddf_cpld_module",
            "pddf_cpld_driver",
            "pddf_mux_module",
            "pddf_xcvr_module",
            "pddf_xcvr_driver_module",
            "pddf_psu_driver_module",
            "pddf_psu_module",
            "pddf_fan_driver_module",
            "pddf_fan_module",
            "pddf_led_module"
        ]
    },

    "SYSTEM":
    {
        "dev_info": {"device_type":"CPU", "device_name":"ROOT_COMPLEX", "device_parent":null},
        "i2c":
        {
            "CONTROLLERS":
            [ 
                { "dev_name":"i2c-1", "dev":"SMBUS1" }
            ]
        }
    },

    "SMBUS1": 
    {
        "dev_info": {"device_type": "SMBUS", "device_name": "SMBUS1", "device_parent": "SYSTEM"},
        "i2c": 
        {
            "topo_info": {"dev_addr": "0x1"},
            "DEVICES": 
            [
                {"dev": "EEPROM1"},
                {"dev": "MUX1"}
            ]
        }
    },


    "EEPROM1":
    {
        "dev_info": {"device_type": "EEPROM", "device_name": "EEPROM1", "device_parent": "SMBUS1"},
        "i2c":
        {
            "topo_info": {"parent_bus": "0x1", "dev_addr": "0x57", "dev_type": "24c02"},
            "dev_attr": {"access_mode": "BLOCK"},
            "attr_list": [
                {"attr_name": "eeprom"}
            ]
        }
    },

    "MUX1":
    {
        "dev_info": { "device_type":"MUX", "device_name":"MUX1", "device_parent":"SMBUS1"},
        "i2c":
        { 
            "topo_info": { "parent_bus":"0x1", "dev_addr":"0x77", "dev_type":"pca9548"},
            "dev_attr": { "virt_bus":"0x2", "idle_state":"-2"},
            "channel":
            [
                { "chn":"0", "dev":"MUX2" },
                { "chn":"1", "dev":"MUX3" },
                { "chn":"1", "dev":"CPLD1" },
                { "chn":"1", "dev":"FAN-CTRL" }
            ]
        }
    },

    "MUX2":
    {
        "dev_info": { "device_type":"MUX", "device_name":"MUX2", "device_parent":"MUX1"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x2", "dev_addr":"0x71", "dev_type":"pca9548"},
            "dev_attr": { "virt_bus":"0xa", "idle_state":"-2"},
            "channel":
            [
                { "chn":"0", "dev":"PSU1" },
                { "chn":"1", "dev":"PSU2" },
                { "chn":"4", "dev":"TEMP1" }
            ]
        }
    },

    "TEMP1" :
    {
        "dev_info": { "device_type":"TEMP_SENSOR", "device_parent":"MUX2"},
    "dev_attr": { "display_name":"Temp_1"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0xe", "dev_addr":"0x48", "dev_type":"lm77"},
            "attr_list":
            [
                { "attr_name": "temp1_high_crit_threshold", "drv_attr_name":"temp1_crit"},
                { "attr_name": "temp1_crit_hyst"},
                { "attr_name": "temp1_crit_alarm"},
                { "attr_name": "temp1_max_alarm"},
                { "attr_name": "temp1_min_alarm"},
                { "attr_name": "temp1_input"},
                { "attr_name": "temp1_high_threshold", "drv_attr_name":"temp1_max"},
                { "attr_name": "temp1_low_threshold", "drv_attr_name":"temp1_min"},
                { "attr_name": "temp1_max_hyst"},
                { "attr_name": "temp1_min_hyst"}
            ]
        }
    },

    "MUX3":
    {
        "dev_info": { "device_type":"MUX", "device_name":"MUX3", "device_parent":"MUX1"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x3", "dev_addr":"0x70", "dev_type":"pca9548"},
            "dev_attr": { "virt_bus":"0x12", "idle_state":"-2"},
            "channel":
            [
                { "chn":"0", "dev":"PORT49" },
                { "chn":"1", "dev":"PORT50" },
                { "chn":"2", "dev":"PORT51" },
                { "chn":"3", "dev":"PORT52" },
                { "chn":"4", "dev":"PORT53" },
                { "chn":"5", "dev":"PORT54" },
                { "chn":"6", "dev":"TEMP2" },
                { "chn":"7", "dev":"TEMP3" }
            ]
        }
    },


    "TEMP2" :
    {
        "dev_info": { "device_type":"TEMP_SENSOR", "device_parent":"MUX3"},
		"dev_attr": { "display_name":"Temp_CPU"},

        "i2c":
        {
            "topo_info": { "parent_bus":"0x18", "dev_addr":"0x4b", "dev_type":"lm75"},
            "attr_list":
            [
                { "attr_name": "temp1_high_threshold", "drv_attr_name":"temp1_max"},
                { "attr_name": "temp1_max_hyst"},
                { "attr_name": "temp1_input"}
            ]
        }
    },


    "TEMP3" :
    {
        "dev_info": { "device_type":"TEMP_SENSOR", "device_parent":"MUX3"},
		"dev_attr": { "display_name":"Temp_Fan"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x19", "dev_addr":"0x4a", "dev_type":"lm75"},
            "attr_list":
            [
                { "attr_name": "temp1_high_threshold", "drv_attr_name":"temp1_max"},
                { "attr_name": "temp1_max_hyst"},
                { "attr_name": "temp1_input"}
            ]
        }
    },


    "CPLD1":
    {
        "dev_info": { "device_type":"CPLD", "device_name":"CPLD1", "device_parent":"MUX1"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x3", "dev_addr":"0x60", "dev_type":"i2c_cpld"}
        }
    },


    "FAN-CTRL":
    {
        "dev_info": { "device_type":"FAN", "device_name":"FAN-CTRL", "device_parent":"MUX1"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x3", "dev_addr":"0x66", "dev_type":"fan_cpld"},
            "dev_attr": { "num_fantrays":"3"},
            "attr_list":
            [
                { "attr_name":"fan1_present", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x87", "attr_mask":"0x1", "attr_cmpval":"0x0", "attr_len":"1"},
                { "attr_name":"fan2_present", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x87", "attr_mask":"0x2", "attr_cmpval":"0x0", "attr_len":"1"},
                { "attr_name":"fan3_present", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x87", "attr_mask":"0x4", "attr_cmpval":"0x0", "attr_len":"1"},
                { "attr_name":"fan1_direction", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x87", "attr_mask":"0x10", "attr_cmpval":"0x10", "attr_len":"1"},
                { "attr_name":"fan2_direction", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x87", "attr_mask":"0x20", "attr_cmpval":"0x20", "attr_len":"1"},
                { "attr_name":"fan3_direction", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x87", "attr_mask":"0x40", "attr_cmpval":"0x40", "attr_len":"1"},
                { "attr_name":"fan1_input", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x88", "attr_mask":"0xFF", "attr_len":"1", "attr_mult":"114", "attr_is_divisor":0},
                { "attr_name":"fan2_input", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x89", "attr_mask":"0xFF", "attr_len":"1", "attr_mult":"114" , "attr_is_divisor":0},
                { "attr_name":"fan3_input", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x8a", "attr_mask":"0xFF", "attr_len":"1", "attr_mult":"114", "attr_is_divisor":0},
                { "attr_name":"fan1_pwm", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x1a", "attr_mask":"0x1F", "attr_len":"1"},
                { "attr_name":"fan2_pwm", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x1a", "attr_mask":"0x1F", "attr_len":"1"},
                { "attr_name":"fan3_pwm", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x1b", "attr_mask":"0x1F", "attr_len":"1"}
            ]
        }
    },


    "SYS_LED":
    {
        "dev_info": { "device_type":"LED", "device_name":"SYS_LED"},
        "dev_attr": { "index":"0"},
        "i2c" : {
            "attr_list":
            [
                {"attr_name":"STATUS_LED_COLOR_GREEN",  "bits" : "7:5", "descr" : "", "value" : "0x1", "swpld_addr" : "0x60", "swpld_addr_offset" : "0x30"},
                {"attr_name":"STATUS_LED_COLOR_GREEN_BLINK",  "bits" : "7:5", "descr" : "", "value" : "0x3", "swpld_addr" : "0x60", "swpld_addr_offset" : "0x30"},
                {"attr_name":"STATUS_LED_COLOR_AMBER",  "bits" : "7:5", "descr" : "", "value" : "0x4", "swpld_addr" : "0x60", "swpld_addr_offset" : "0x30"},
                {"attr_name":"STATUS_LED_COLOR_AMBER_BLINK",  "bits" : "7:5", "descr" : "", "value" : "0x2", "swpld_addr" : "0x60", "swpld_addr_offset" : "0x30"},
                {"attr_name":"STATUS_LED_COLOR_OFF",  "bits" : "7:5", "descr" : "", "value" : "0x7", "swpld_addr" : "0x60", "swpld_addr_offset" : "0x30"}
            ]
        }
    },


    "PSU1_LED":
    {
        "dev_info": { "device_type":"LED", "device_name":"PSU_LED"},
        "dev_attr": { "index":"0"},
        "i2c" : {
            "attr_list":
            [
                {"attr_name":"STATUS_LED_COLOR_GREEN",  "bits" : "1:0", "descr" : "", "value" : "0x1", "swpld_addr" : "0x60", "swpld_addr_offset" : "0x30"},
                {"attr_name":"STATUS_LED_COLOR_AMBER",  "bits" : "1:0", "descr" : "", "value" : "0x2", "swpld_addr" : "0x60", "swpld_addr_offset" : "0x30"},
                {"attr_name":"STATUS_LED_COLOR_OFF",  "bits" : "1:0", "descr" : "", "value" : "0x3", "swpld_addr" : "0x60", "swpld_addr_offset" : "0x30"}
            ]
        }
    },

    "PSU2_LED":
    {
        "dev_info": { "device_type":"LED", "device_name":"PSU_LED"},
        "dev_attr": { "index":"1"},
        "i2c" : {
            "attr_list":
            [
                    {"attr_name":"STATUS_LED_COLOR_GREEN",  "bits" : "7:6", "descr" : "", "value" : "0x1", "swpld_addr" : "0x60", "swpld_addr_offset" : "0x31"},
                    {"attr_name":"STATUS_LED_COLOR_AMBER",  "bits" : "7:6", "descr" : "", "value" : "0x2", "swpld_addr" : "0x60", "swpld_addr_offset" : "0x31"},
                    {"attr_name":"STATUS_LED_COLOR_OFF",  "bits" : "7:6", "descr" : "", "value" : "0x3", "swpld_addr" : "0x60", "swpld_addr_offset" : "0x31"}
            ]
        }
    },

    "FAN_LED":
    {
        "dev_info": { "device_type":"LED", "device_name":"FAN_LED"},
        "dev_attr": { "index":"0"},
        "i2c" : {
            "attr_list":
            [
                {"attr_name":"STATUS_LED_COLOR_GREEN",  "bits" : "3:2", "descr" : "", "value" : "0x1", "swpld_addr" : "0x60", "swpld_addr_offset" : "0x31"},
                {"attr_name":"STATUS_LED_COLOR_AMBER",  "bits" : "3:2", "descr" : "", "value" : "0x2", "swpld_addr" : "0x60", "swpld_addr_offset" : "0x31"},
                {"attr_name":"STATUS_LED_COLOR_OFF",  "bits" : "3:2", "descr" : "", "value" : "0x3", "swpld_addr" : "0x60", "swpld_addr_offset" : "0x31"}
            ]
        }
    },

	"PSU1":
	{
		"dev_info": { "device_type":"PSU", "device_name":"PSU1", "device_parent":"MUX2"}, 
		"dev_attr": { "dev_idx":"1", "num_psu_fans": "1"},
		"i2c":
		{
			"interface":
			[
				{ "itf":"pmbus", "dev":"PSU1-PMBUS" },
				{ "itf":"eeprom", "dev":"PSU1-EEPROM" }
			]
		
		}
	},

	"PSU1-PMBUS":
	{
		"dev_info": { "device_type":"PSU-PMBUS", "device_name":"PSU1-PMBUS", "device_parent":"MUX2", "virt_parent":"PSU1"},
		"i2c":
		{
			"topo_info":{ "parent_bus":"0xa", "dev_addr":"0x58", "dev_type":"psu_pmbus"}, 
			"attr_list": 
			[  
				{ "attr_name":"psu_mfr_id", "attr_devaddr":"0x58", "attr_devtype":"pmbus", "attr_offset":"0X99", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"10" },
				{ "attr_name":"psu_fan_dir", "attr_devaddr":"0x58", "attr_devtype":"pmbus", "attr_offset":"0xc3", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"5"},
				{ "attr_name":"psu_v_out", "attr_devaddr":"0x58", "attr_devtype":"pmbus", "attr_offset":"0x8b", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"2"},
				{ "attr_name":"psu_i_out", "attr_devaddr":"0x58", "attr_devtype":"pmbus", "attr_offset":"0x8c", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"2"},
				{ "attr_name":"psu_p_out", "attr_devaddr":"0x58", "attr_devtype":"pmbus", "attr_offset":"0x96", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"2"},
				{ "attr_name":"psu_fan1_speed_rpm", "attr_devaddr":"0x58", "attr_devtype":"pmbus", "attr_offset":"0x90", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"2"},
                { "attr_name":"psu_temp1_input", "attr_devaddr":"0x58", "attr_devtype":"pmbus", "attr_offset":"0x8d", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"2"}
			]
		}
	},

    "PSU1-EEPROM":
    {
        "dev_info": { "device_type":"PSU-EEPROM", "device_name":"PSU1-EEPROM", "device_parent":"MUX2", "virt_parent":"PSU1"},
        "i2c":
        {
            "topo_info":{ "parent_bus":"0xa", "dev_addr":"0x50", "dev_type":"psu_eeprom"},
            "attr_list":
            [
                { "attr_name":"psu_present", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_offset":"0x22", "attr_mask":"0x20", "attr_cmpval":"0x0", "attr_len":"1"},
                { "attr_name":"psu_model_name", "attr_devaddr":"0x50", "attr_devtype":"eeprom", "attr_offset":"0x20", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"12" },
                { "attr_name":"psu_power_good", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_offset":"0x22", "attr_mask":"0x40", "attr_cmpval":"0x40", "attr_len":"1"},
                { "attr_name":"psu_serial_num", "attr_devaddr":"0x50", "attr_devtype":"eeprom", "attr_offset":"0x35", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"19" }
            ]
        }
    },


	"PSU2":
	{
		"dev_info": { "device_type":"PSU", "device_name":"PSU2", "device_parent":"MUX2" },
		"dev_attr": { "dev_idx":"2", "num_psu_fans":"1"},
		"i2c":
		{
			"interface":
			[
				{ "itf":"pmbus", "dev":"PSU2-PMBUS"},
				{ "itf":"eeprom", "dev":"PSU2-EEPROM"}
			]
		}

	},

	"PSU2-PMBUS":
	{
		"dev_info": {"device_type":"PSU-PMBUS", "device_name":"PSU2-PMBUS", "device_parent":"MUX2", "virt_parent":"PSU2"},
		"i2c":
		{
			"topo_info": { "parent_bus":"0xb", "dev_addr":"0x59", "dev_type":"psu_pmbus"},
			"attr_list": 
			[  
				{ "attr_name":"psu_mfr_id", "attr_devaddr":"0x59", "attr_devtype":"pmbus", "attr_offset":"0X99", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"10" },
				{ "attr_name":"psu_fan_dir", "attr_devaddr":"0x59", "attr_devtype":"pmbus", "attr_offset":"0xc3", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"5"},
				{ "attr_name":"psu_v_out", "attr_devaddr":"0x59", "attr_devtype":"pmbus", "attr_offset":"0x8b", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"2"},
				{ "attr_name":"psu_i_out", "attr_devaddr":"0x59", "attr_devtype":"pmbus", "attr_offset":"0x8c", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"2"},
				{ "attr_name":"psu_p_out", "attr_devaddr":"0x59", "attr_devtype":"pmbus", "attr_offset":"0x96", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"2"},
				{ "attr_name":"psu_fan1_speed_rpm", "attr_devaddr":"0x59", "attr_devtype":"pmbus", "attr_offset":"0x90", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"2"},
                { "attr_name":"psu_temp1_input", "attr_devaddr":"0x59", "attr_devtype":"pmbus", "attr_offset":"0x8d", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"2"}
			]
		}
	},

    "PSU2-EEPROM":
    {
        "dev_info": {"device_type":"PSU-EEPROM", "device_name":"PSU2-EEPROM", "device_parent":"MUX2", "virt_parent":"PSU2"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0xb", "dev_addr":"0x51", "dev_type":"psu_eeprom"},
            "attr_list":
            [
                { "attr_name":"psu_present", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_offset":"0x22", "attr_mask":"0x2", "attr_cmpval":"0x0", "attr_len":"1"},
                { "attr_name":"psu_model_name", "attr_devaddr":"0x51", "attr_devtype":"eeprom", "attr_offset":"0x20", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"12" },
                { "attr_name":"psu_power_good", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_offset":"0x22", "attr_mask":"0x4", "attr_cmpval":"0x4", "attr_len":"1"},
                { "attr_name":"psu_serial_num", "attr_devaddr":"0x51", "attr_devtype":"eeprom", "attr_offset":"0x35", "attr_mask":"0x0", "attr_cmpval":"0xff", "attr_len":"19" }
            ]
        }
    },

    "PORT49":
    {
        "dev_info": { "device_type":"SFP28", "device_name":"PORT49", "device_parent":"MUX3"},
        "dev_attr": { "dev_idx":"49"},
        "i2c":
        {
            "interface":
            [
                { "itf":"eeprom", "dev":"PORT49-EEPROM" },
                { "itf":"control", "dev":"PORT49-CTRL" }
            ]
        }
    },
    "PORT49-EEPROM":
    {
        "dev_info": { "device_type":"", "device_name":"PORT49-EEPROM", "device_parent":"MUX3", "virt_parent":"PORT49"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x12", "dev_addr":"0x50", "dev_type":"optoe2"},
            "attr_list":
            [
                { "attr_name":"eeprom"}
            ]
        }
    },
    "PORT49-CTRL":
    {
        "dev_info": { "device_type":"", "device_name":"PORT49-CTRL", "device_parent":"MUX3", "virt_parent":"PORT49"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x12", "dev_addr":"0x53", "dev_type":"pddf_xcvr"},
            "attr_list":
            [
                { "attr_name":"xcvr_present", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x05", "attr_mask":"0x6", "attr_cmpval":"0x0", "attr_len":"1"}
            ]
        }
    },

    "PORT50":
    {
        "dev_info": { "device_type":"SFP28", "device_name":"PORT50", "device_parent":"MUX3"},
        "dev_attr": { "dev_idx":"50"},
        "i2c":
        {
            "interface":
            [
                { "itf":"eeprom", "dev":"PORT50-EEPROM" },
                { "itf":"control", "dev":"PORT50-CTRL" }
            ]
        }
    },
    "PORT50-EEPROM":
    {
        "dev_info": { "device_type":"", "device_name":"PORT50-EEPROM", "device_parent":"MUX3", "virt_parent":"PORT50"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x13", "dev_addr":"0x50", "dev_type":"optoe2"},
            "attr_list":
            [
                { "attr_name":"eeprom"}
            ]
        }
    },
    "PORT50-CTRL":
    {
        "dev_info": { "device_type":"", "device_name":"PORT50-CTRL", "device_parent":"MUX3", "virt_parent":"PORT50"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x13", "dev_addr":"0x53", "dev_type":"pddf_xcvr"},
            "attr_list":
            [
                { "attr_name":"xcvr_present", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x05", "attr_mask":"0x2", "attr_cmpval":"0x0", "attr_len":"1"}
            ]
        }
    },

    "PORT51":
    {
        "dev_info": { "device_type":"SFP28", "device_name":"PORT51", "device_parent":"MUX3"},
        "dev_attr": { "dev_idx":"51"},
        "i2c":
        {
            "interface":
            [
                { "itf":"eeprom", "dev":"PORT51-EEPROM" },
                { "itf":"control", "dev":"PORT51-CTRL" }
            ]
        }
    },
    "PORT51-EEPROM":
    {
        "dev_info": { "device_type":"", "device_name":"PORT51-EEPROM", "device_parent":"MUX3", "virt_parent":"PORT51"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x14", "dev_addr":"0x50", "dev_type":"optoe2"},
            "attr_list":
            [
                { "attr_name":"eeprom"}
            ]
        }
    },
    "PORT51-CTRL":
    {
        "dev_info": { "device_type":"", "device_name":"PORT51-CTRL", "device_parent":"MUX3", "virt_parent":"PORT51"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x14", "dev_addr":"0x53", "dev_type":"pddf_xcvr"},
            "attr_list":
            [
                { "attr_name":"xcvr_present", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x06", "attr_mask":"0x6", "attr_cmpval":"0x0", "attr_len":"1"}
            ]
        }
    },
    "PORT52":
    {
        "dev_info": { "device_type":"SFP28", "device_name":"PORT52", "device_parent":"MUX3"},
        "dev_attr": { "dev_idx":"52"},
        "i2c":
        {
            "interface":
            [
                { "itf":"eeprom", "dev":"PORT52-EEPROM" },
                { "itf":"control", "dev":"PORT52-CTRL" }
            ]
        }
    },
    "PORT52-EEPROM":
    {
        "dev_info": { "device_type":"", "device_name":"PORT52-EEPROM", "device_parent":"MUX3", "virt_parent":"PORT52"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x15", "dev_addr":"0x50", "dev_type":"optoe2"},
            "attr_list":
            [
                { "attr_name":"eeprom"}
            ]
        }
    },
    "PORT52-CTRL":
    {
        "dev_info": { "device_type":"", "device_name":"PORT52-CTRL", "device_parent":"MUX3", "virt_parent":"PORT52"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x15", "dev_addr":"0x53", "dev_type":"pddf_xcvr"},
            "attr_list":
            [
                { "attr_name":"xcvr_present", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x06", "attr_mask":"0x2", "attr_cmpval":"0x0", "attr_len":"1"}
            ]
        }
    },

    "PORT53":
    {
        "dev_info": { "device_type":"QSFP28", "device_name":"PORT53", "device_parent":"MUX3"},
        "dev_attr": { "dev_idx":"53"},
        "i2c":
        {
            "interface":
            [
                { "itf":"eeprom", "dev":"PORT53-EEPROM" },
                { "itf":"control", "dev":"PORT53-CTRL" }
            ]
        }
    },
    "PORT53-EEPROM":
    {
        "dev_info": { "device_type":"", "device_name":"PORT53-EEPROM", "device_parent":"MUX3", "virt_parent":"PORT53"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x16", "dev_addr":"0x50", "dev_type":"optoe1"},
            "attr_list":
            [
                { "attr_name":"eeprom"}
            ]
        }
    },
    "PORT53-CTRL":
    {
        "dev_info": { "device_type":"", "device_name":"PORT53-CTRL", "device_parent":"MUX3", "virt_parent":"PORT53"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x16", "dev_addr":"0x53", "dev_type":"pddf_xcvr"},
            "attr_list":
            [
                { "attr_name":"xcvr_present", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x21", "attr_mask":"0x0", "attr_cmpval":"0x0", "attr_len":"1"}
            ]
        }
    },

    "PORT54":
    {
        "dev_info": { "device_type":"QSFP28", "device_name":"PORT54", "device_parent":"MUX3"},
        "dev_attr": { "dev_idx":"54"},
        "i2c":
        {
            "interface":
            [
                { "itf":"eeprom", "dev":"PORT54-EEPROM" },
                { "itf":"control", "dev":"PORT54-CTRL" }
            ]
        }
    },
    "PORT54-EEPROM":
    {
        "dev_info": { "device_type":"", "device_name":"PORT54-EEPROM", "device_parent":"MUX3", "virt_parent":"PORT54"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x17", "dev_addr":"0x50", "dev_type":"optoe1"},
            "attr_list":
            [
                { "attr_name":"eeprom"}
            ]
        }
    },
    "PORT54-CTRL":
    {
        "dev_info": { "device_type":"", "device_name":"PORT54-CTRL", "device_parent":"MUX3", "virt_parent":"PORT54"},
        "i2c":
        {
            "topo_info": { "parent_bus":"0x17", "dev_addr":"0x53", "dev_type":"pddf_xcvr"},
            "attr_list":
            [
                { "attr_name":"xcvr_present", "attr_devaddr":"0x60", "attr_devtype":"cpld", "attr_devname":"CPLD1", "attr_offset":"0x21", "attr_mask":"0x4", "attr_cmpval":"0x0", "attr_len":"1"}
            ]
        }
    }

}