linux-kernel - [PATCH v2 6/6] media: uvcvideo: Set a different name for the metadata entity

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Message-Id: <20210311221946.1319924-7-ribalda@chromium.org>
Date:   Thu, 11 Mar 2021 23:19:46 +0100
From:   Ricardo Ribalda <ribalda@...omium.org>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Tomasz Figa <tfiga@...omium.org>, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org, senozhatsky@...omium.org,
        Hans Verkuil <hverkuil@...all.nl>
Cc:     Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH v2 6/6] media: uvcvideo: Set a different name for the metadata entity

All the entities must have a unique name.

Fixes v4l2-compliance:
Media Controller ioctls:
                fail: v4l2-test-media.cpp(205): v2_entity_names_set.find(key) != v2_entity_names_set.end()
        test MEDIA_IOC_G_TOPOLOGY: FAIL
                fail: v4l2-test-media.cpp(394): num_data_links != num_links
	test MEDIA_IOC_ENUM_ENTITIES/LINKS: FAIL

Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
 drivers/media/usb/uvc/uvc_driver.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index 30ef2a3110f7..47efa9a9be99 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -2199,7 +2199,10 @@ int uvc_register_video_device(struct uvc_device *dev,
 		break;
 	}
 
-	strscpy(vdev->name, dev->name, sizeof(vdev->name));
+	if (type == V4L2_BUF_TYPE_META_CAPTURE)
+		strscpy(vdev->name, "Metadata Videodev", sizeof(vdev->name));
+	else
+		strscpy(vdev->name, dev->name, sizeof(vdev->name));
 
 	/*
 	 * Set the driver data before calling video_register_device, otherwise
-- 
2.31.0.rc2.261.g7f71774620-goog