diff --git a/argument.cpp b/argument.cpp
index 170bb8f..3849cae 100644
--- a/argument.cpp
+++ b/argument.cpp
@@ -62,14 +62,14 @@
     std::cerr << "Options:\n";
     std::cerr << "    --help               print this menu\n";
     std::cerr << "    --path=<path>        sysfs location to monitor\n";
-    std::cerr << "    --of-name=<path>     open firmware device name to monitor\n";
+    std::cerr << "    --dev-path=<path>    device path to monitor\n";
     std::cerr << std::flush;
 }
 
 const option ArgumentParser::options[] =
 {
     { "path",   required_argument,  NULL,   'p' },
-    { "of-name", required_argument,  NULL,   'o' },
+    { "dev-path", required_argument,  NULL, 'o' },
     { "help",   no_argument,        NULL,   'h' },
     { 0, 0, 0, 0},
 };
diff --git a/readd.cpp b/readd.cpp
index 454ac62..3c2c2d2 100644
--- a/readd.cpp
+++ b/readd.cpp
@@ -34,10 +34,19 @@
     auto options = std::make_unique<ArgumentParser>(argc, argv);
 
     // Parse out path argument.
-    auto path = (*options)["of-name"];
+    auto path = (*options)["dev-path"];
     if (path != ArgumentParser::empty_string)
     {
-        path = sysfs::findHwmonFromOFPath(path);
+        // This path may either be a device path (starts with
+        // /devices), or an open firmware device tree path.
+        if (path.substr(0, 8) == "/devices")
+        {
+            path = sysfs::findHwmonFromDevPath(path);
+        }
+        else
+        {
+            path = sysfs::findHwmonFromOFPath(path);
+        }
     }
 
     if (path == ArgumentParser::empty_string)