diff --git a/phosphor-power-supply/README.md b/phosphor-power-supply/README.md
index ffb57f5..389dcc9 100644
--- a/phosphor-power-supply/README.md
+++ b/phosphor-power-supply/README.md
@@ -7,27 +7,28 @@
 To enable reading VPD data via PMBus commands to IBM common form factor
 power supplies (ibm-cffps), run meson with `-Dibm-vpd=true`.
 
-# JSON Configuration File
-
-The JSON configuration file should contain:
-
-## PowerSupplies
-An array of power supply properties.
-
-### Inventory
-The D-Bus path used to check the power supply presence (Present) property.
-
-### Bus
-An integer specifying the I2C bus that the PMBus power supply is on.
-
-### Address
-A string representing the 16-bit I2C address of the PMBus power supply.
-
 # D-Bus System Configuration
 
-Entity Manager provides information about the supported system configuration.
+Entity Manager provides information about the supported system configuration
+and the power supply connectors (IBMCFFPSConnector).
+
 The information is as follows:
 
 ## Max Power Supplies
 Integer that indicates the maximum number of power supplies that should be
 present. This is exposed via the `MaxCount` property.
+
+## I2C Bus
+The I2C bus(es) that the power supply is on will be represented by the `I2CBus`
+property under the `xyz.openbmc_project.Configuration.IBMCFFPSConnector`
+interface(s).
+
+## I2C Address
+The I2C address(es) that the power supply is at will be represented by the
+`I2CAddress` property under the IBMCFFPSConnector interface(s).
+
+## Name
+The `Name` property under the IBMCFFPSConnector interface(s) will be used to
+create an inventory path for the power supply. This inventory path is used as
+part of the power supply presence detection, reading the `Present` property
+under this path.
diff --git a/phosphor-power-supply/main.cpp b/phosphor-power-supply/main.cpp
index 8960a53..c48c73a 100644
--- a/phosphor-power-supply/main.cpp
+++ b/phosphor-power-supply/main.cpp
@@ -24,7 +24,7 @@
 
 using namespace phosphor::power;
 
-int main(int argc, char* argv[])
+int main(void)
 {
     try
     {
@@ -32,34 +32,6 @@
 
         CLI::App app{"OpenBMC Power Supply Unit Monitor"};
 
-        std::string configfile;
-        app.add_option("-c,--config", configfile,
-                       "JSON configuration file path");
-
-        // Read the arguments.
-        CLI11_PARSE(app, argc, argv);
-        if (configfile.empty())
-        {
-            if (std::filesystem::exists(
-                    "/etc/phosphor-psu-monitor/psu_config.json"))
-            {
-                configfile = "/etc/phosphor-psu-monitor/psu_config.json";
-            }
-            else
-            {
-                configfile = "/usr/share/phosphor-psu-monitor/psu_config.json";
-            }
-        }
-
-        if (!std::filesystem::exists(configfile))
-        {
-            log<level::ERR>((std::string("Configuration file does not exist: "
-                                         "FILENAME=") +
-                             configfile)
-                                .c_str());
-            return -1;
-        }
-
         auto bus = sdbusplus::bus::new_default();
         auto event = sdeventplus::Event::get_default();
 
@@ -67,7 +39,7 @@
         // handle both sd_events (for the timers) and dbus signals.
         bus.attach_event(event.get(), SD_EVENT_PRIORITY_NORMAL);
 
-        manager::PSUManager manager(bus, event, configfile);
+        manager::PSUManager manager(bus, event);
 
         return manager.run();
     }