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[80.71.134.83]) by smtp.gmail.com with ESMTPSA id p23-20020aa7d317000000b00461cdda400esm3168080edq.4.2022.12.02.09.08.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Dec 2022 09:08:29 -0800 (PST) From: Ricardo Ribalda Date: Fri, 02 Dec 2022 18:08:18 +0100 Subject: [PATCH v4 2/3] media: Documentation/driver-api: Document device name MIME-Version: 1.0 Message-Id: <20220920-resend-meta-v4-2-3ac355b66723@chromium.org> References: <20220920-resend-meta-v4-0-3ac355b66723@chromium.org> In-Reply-To: <20220920-resend-meta-v4-0-3ac355b66723@chromium.org> To: Yunke Cao , Mauro Carvalho Chehab , Laurent Pinchart , Sergey Senozhatsky Cc: linux-media@vger.kernel.org, Mauro Carvalho Chehab , linux-kernel@vger.kernel.org, Ricardo Ribalda X-Mailer: b4 0.11.0-dev-696ae X-Developer-Signature: v=1; a=openpgp-sha256; l=1173; i=ribalda@chromium.org; h=from:subject:message-id; bh=SfUbFly0L3KPaCuRZ5w00Du+lIHrvLRHPtWI2RZZpxM=; b=owEBbQKS/ZANAwAKAdE30T7POsSIAcsmYgBjijEJTiEOmUITGiLvUCgkbCs81Q810EX+dXH3NyaT mXwvuGGJAjMEAAEKAB0WIQREDzjr+/4oCDLSsx7RN9E+zzrEiAUCY4oxCQAKCRDRN9E+zzrEiH+6D/ 4yIlInPaIUb3c4STKRJvD4EWozBosI6T/1nKVk3G6TFxnh9oizy6AXNbJLZrwtOJpKqkj9Ks5ICQ6B lqFTWpjvhnfKcrVV0ToMygkwju67mqgUSm6PfTUhWhLbxk25i6+luvVtnkJfunw6W46/rU+9YNFs5c w08uwPEckBTM6bciZkTrY7F27fpe6Hf7nW6J/a6gScSnQh7es6pdBrK/xAncOGTE9+SsQJPVvu0LvO tDVnhPz1aV+BYYUCLE+Es/rJcGVBnxw+a+kZXQDqKQBCq2h6m1yThavXXHOh061luADcr0d6wHaIgY g8OoMWu9bnT2QQmADG4cmgTDcM1OfBDXZhDzD/CCuCUEAhiqVYAOB/urPfyIfrFHq8jPhgVv3ws1T6 FPTJj7yvCgHG2tL4oSTVRFX46NiEm/311whLXSBchnQ0zg8VS3paWWhJy5/G/l6lE8tf7yZ37kmf12 6kTAd5Q/WHYXdblAs3uFZs1+Z9NN0VNNJGVmek4sEyv9IrDtAopL2DqRjTxlY8iY8rHsD1hdag7ssg +K+3ZLlfdwsRZyQtHdf1KwYxZrqRzq4wfL1u+Ds+hs5IkmIAlCWQFJyB9chP271obMkui7lUoKlJe+ XehpqL57Kfg8oqOuCmImjeMkOVT8RdJWrmv7yMKLImBs+fvBpOT0Oe6kH62w== X-Developer-Key: i=ribalda@chromium.org; a=openpgp; fpr=9EC3BB66E2FC129A6F90B39556A0D81F9F782DA9 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1751123029944715517?= X-GMAIL-MSGID: =?utf-8?q?1751123029944715517?= Document how the name of the metadata devices is modified. Signed-off-by: Ricardo Ribalda Reviewed-by: Yunke Cao --- Documentation/driver-api/media/v4l2-dev.rst | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/driver-api/media/v4l2-dev.rst b/Documentation/driver-api/media/v4l2-dev.rst index 99e3b5fa7444..935a46e29c5e 100644 --- a/Documentation/driver-api/media/v4l2-dev.rst +++ b/Documentation/driver-api/media/v4l2-dev.rst @@ -42,7 +42,9 @@ You should also set these fields of :c:type:`video_device`: - :c:type:`video_device`->v4l2_dev: must be set to the :c:type:`v4l2_device` parent device. -- :c:type:`video_device`->name: set to something descriptive and unique. +- :c:type:`video_device`->name: set to something descriptive and unique. If the + device has the `V4L2_CAP_META_CAPTURE` or `V4L2_CAP_META_OUTPUT` capabilities, + the string `Meta:` will be inserted before the original name. - :c:type:`video_device`->vfl_dir: set this to ``VFL_DIR_RX`` for capture devices (``VFL_DIR_RX`` has value 0, so this is normally already the