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Advanced controls of CSI camera

Question asked by Jérôme Pouiller on Apr 30, 2015
Latest reply on Jul 9, 2015 by SergioSolis



I add support for OV7742 (plugged on CSI port) on kernel 3.10.17. This camera is able to support banding filter and a few other useful features. These features are correctly supported by V4L API (see V4L2_CID_POWER_LINE_FREQUENCY, V4L2_CID_BAND_STOP_FILTER, ... ). However, mxc_v4l2_capture only forward a few subset of V4L controls to camera driver (see mxc_v4l2_s_ctrl() in mxc_v4l2_capture.c). Should I patch mxc_v4l2_capture.c in order to support them, or I have missed something?