Add get_egalax_drm_pure_name

src/scripts/python/util/egalax.py

@@ -65,3 +65,16 @@ def get_egalax_edid_path() -> Path:
             max_path = path
     # TODO add sanity check (both edid and VENDOR:DEVICE are in that base)
     return max_path
+
+
+def get_egalax_drm_pure_name() -> str:
+    """Extract DRM name form edid path
+
+    Returns:
+        str: pure drm name OR none if device is not found
+    """
+    edid_path = get_egalax_edid_path()
+    if edid_path:
+        return str(edid_path.parent.stem)
+    else:
+        return None