usbd_next: switch from usbd_register_all_classes() to usbd_register_c…

…lass()

Switch from usbd_register_all_classes() to usbd_register_class() as the
former is mostly meant as a utility function for use in in-tree Zephyr
samples/tests.

Using usbd_register_class() furthermore improves error handling as it will
fail if the expected class instance is not available.

Signed-off-by: Henrik Brix Andersen <[email protected]>

app/src/usb.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2024 Henrik Brix Andersen <[email protected]>
+ * Copyright (c) 2024-2025 Henrik Brix Andersen <[email protected]>
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -23,6 +23,8 @@
 
 LOG_MODULE_REGISTER(usb, CONFIG_CANNECTIVITY_LOG_LEVEL);
 
+#define GS_USB_CLASS_INSTANCE_NAME "gs_usb_0"
+
 #define CANNECTIVITY_USB_BCD_DRN                                                                   \
 	(USB_DEC_TO_BCD(APP_VERSION_MAJOR) << 8 | USB_DEC_TO_BCD(APP_VERSION_MINOR))
 
@@ -188,9 +190,9 @@ static int cannectivity_usb_init_usbd(void)
 			return err;
 		}
 
-		err = usbd_register_all_classes(&usbd, USBD_SPEED_HS, 1);
+		err = usbd_register_class(&usbd, GS_USB_CLASS_INSTANCE_NAME, USBD_SPEED_HS, 1);
 		if (err != 0) {
-			LOG_ERR("failed to register high-speed classes (err %d)", err);
+			LOG_ERR("failed to register high-speed class instance (err %d)", err);
 			return err;
 		}
 
@@ -213,9 +215,9 @@ static int cannectivity_usb_init_usbd(void)
 		return err;
 	}
 
-	err = usbd_register_all_classes(&usbd, USBD_SPEED_FS, 1);
+	err = usbd_register_class(&usbd, GS_USB_CLASS_INSTANCE_NAME, USBD_SPEED_FS, 1);
 	if (err != 0) {
-		LOG_ERR("failed to register full-speed classes (err %d)", err);
+		LOG_ERR("failed to register full-speed class instance (err %d)", err);
 		return err;
 	}
 

tests/subsys/usb/gs_usb/host/src/usb.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2024 Henrik Brix Andersen <[email protected]>
+ * Copyright (c) 2024-2025 Henrik Brix Andersen <[email protected]>
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -18,6 +18,8 @@
 
 LOG_MODULE_REGISTER(usb, LOG_LEVEL_DBG);
 
+#define GS_USB_CLASS_INSTANCE_NAME "gs_usb_0"
+
 #ifdef CONFIG_USB_DEVICE_STACK_NEXT
 #define TEST_BOS_DESC_DEFINE_CAP static
 #else /* CONFIG_USB_DEVICE_STACK_NEXT */
@@ -83,9 +85,9 @@ static int test_usb_init_usbd(void)
 			return err;
 		}
 
-		err = usbd_register_all_classes(&usbd, USBD_SPEED_HS, 1);
+		err = usbd_register_class(&usbd, GS_USB_CLASS_INSTANCE_NAME, USBD_SPEED_HS, 1);
 		if (err != 0) {
-			LOG_ERR("failed to register high-speed classes (err %d)", err);
+			LOG_ERR("failed to register high-speed class instance (err %d)", err);
 			return err;
 		}
 
@@ -108,9 +110,9 @@ static int test_usb_init_usbd(void)
 		return err;
 	}
 
-	err = usbd_register_all_classes(&usbd, USBD_SPEED_FS, 1);
+	err = usbd_register_class(&usbd, GS_USB_CLASS_INSTANCE_NAME, USBD_SPEED_FS, 1);
 	if (err != 0) {
-		LOG_ERR("failed to register full-speed classes (err %d)", err);
+		LOG_ERR("failed to register full-speed class instance (err %d)", err);
 		return err;
 	}