fix grammar, adjust device defaults

docs/docs/configuration/detectors.md

@@ -32,7 +32,7 @@ When using CPU detectors, you can add one CPU detector per camera. Adding more d
 
 The EdgeTPU detector type runs a TensorFlow Lite model utilizing the Google Coral delegate for hardware acceleration. To configure an EdgeTPU detector, set the `"type"` attribute to `"edgetpu"`.
 
-The EdgeTPU device can specified using the `"device"` attribute according to the [Documentation for the TensorFlow Lite Python API](https://coral.ai/docs/edgetpu/multiple-edgetpu/#using-the-tensorflow-lite-python-api). If not set, the delegate will use the first device it finds.
+The EdgeTPU device can be specified using the `"device"` attribute according to the [Documentation for the TensorFlow Lite Python API](https://coral.ai/docs/edgetpu/multiple-edgetpu/#using-the-tensorflow-lite-python-api). If not set, the delegate will use the first device it finds.
 
 A TensorFlow Lite model is provided in the container at `/edgetpu_model.tflite` and is used by this detector type by default. To provide your own model, bind mount the file into the container and provide the path with `model.path`.
 
@@ -97,7 +97,7 @@ detectors:
 
 The OpenVINO detector type runs an OpenVINO IR model on Intel CPU, GPU and VPU hardware. To configure an OpenVINO detector, set the `"type"` attribute to `"openvino"`.
 
-The OpenVINO device plugin is specified using the `"device"` attribute according to naming conventions in the [Device Documentation](https://docs.openvino.ai/latest/openvino_docs_OV_UG_Working_with_devices.html). Other supported devices could be `AUTO`, `CPU`, `GPU`, `MYRIAD`, etc. If not specified, the default OpenVINO device will be selected by the `AUTO` plugin.
+The OpenVINO device to be used is specified using the `"device"` attribute according to the naming conventions in the [Device Documentation](https://docs.openvino.ai/latest/openvino_docs_OV_UG_Working_with_devices.html). Other supported devices could be `AUTO`, `CPU`, `GPU`, `MYRIAD`, etc. If not specified, the default OpenVINO device will be selected by the `AUTO` plugin.
 
 OpenVINO is supported on 6th Gen Intel platforms (Skylake) and newer.  A supported Intel platform is required to use the `GPU` device with OpenVINO.  The `MYRIAD` device may be run on any platform, including Arm devices.  For detailed system requirements, see [OpenVINO System Requirements](https://www.intel.com/content/www/us/en/developer/tools/openvino-toolkit/system-requirements.html)
 

frigate/detectors/plugins/edgetpu_tfl.py

@@ -16,7 +16,7 @@
 
 class EdgeTpuDetectorConfig(BaseDetectorConfig):
     type: Literal[DETECTOR_KEY]
-    device: str = Field(default="usb", title="Device Type")
+    device: str = Field(default=None, title="Device Type")
 
 
 class EdgeTpuTfl(DetectionApi):

frigate/detectors/plugins/openvino.py

@@ -15,7 +15,7 @@
 
 class OvDetectorConfig(BaseDetectorConfig):
     type: Literal[DETECTOR_KEY]
-    device: str = Field(default="AUTO", title="Device Type")
+    device: str = Field(default=None, title="Device Type")
 
 
 class OvDetector(DetectionApi):

frigate/test/test_config.py

@@ -69,8 +69,8 @@ def test_detector_custom_model_path(self):
         assert runtime_config.detectors["openvino"].type == DetectorTypeEnum.openvino
 
         assert runtime_config.detectors["cpu"].num_threads == 3
-        assert runtime_config.detectors["edgetpu"].device == "usb"
-        assert runtime_config.detectors["openvino"].device == "AUTO"
+        assert runtime_config.detectors["edgetpu"].device is None
+        assert runtime_config.detectors["openvino"].device is None
 
         assert runtime_config.model.path == "/default.tflite"
         assert runtime_config.detectors["cpu"].model.path == "/cpu_model.tflite"