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Tue, 08 Sep 2026 02:07:24 -0700 (PDT) Message-ID: <530717cd-ef89-412b-911c-15eda272b6e8@linaro.org> Date: Tue, 8 Sep 2026 10:07:23 +0100 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/3] media: ov02c10: Implement get_selection To: Felipe Calliari , linux-media@vger.kernel.org Cc: Sakari Ailus , Hans de Goede , Mauro Carvalho Chehab , linux-kernel@vger.kernel.org References: <20260905030732.39196-1-calliarifelipe@gmail.com> <20260905030732.39196-2-calliarifelipe@gmail.com> From: Bryan O'Donoghue Content-Language: en-GB In-Reply-To: <20260905030732.39196-2-calliarifelipe@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 05/09/2026 04:07, Felipe Calliari wrote: > The driver does not implement .get_selection, so userspace cannot query > the sensor's native size or active crop rectangle. libcamera reports > "Unable to get rectangle N on pad 0/0: Inappropriate ioctl for device" > and "The sensor kernel driver needs to be fixed" (see > Documentation/sensor_driver_requirements.rst). > > Implement .get_selection returning the fixed geometry of the sensor: > > - V4L2_SEL_TGT_NATIVE_SIZE / V4L2_SEL_TGT_CROP_BOUNDS: the full > 1928x1092 pixel array. > - V4L2_SEL_TGT_CROP / V4L2_SEL_TGT_CROP_DEFAULT: the 1920x1080 active > area, offset by (4, 6), matching the readout window programmed in > sensor_1928x1092_30fps_setting[] (registers 0x3800-0x3807). > > The crop is fixed, so sd_state is not consulted. > > Signed-off-by: Felipe Calliari Reviewed-by: Bryan O'Donoghue