Can’t update exposure time using v4l2-ctl

Published by jjehl on

Home Forums 2. NVIDIA Jetson Cameras Jetvariety cameras on Jetson Nano Can’t update exposure time using v4l2-ctl

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    • #29202
      jjehl
      Participant

      I’m using OV2311 camera on Jetson Nano. I can get an image but I want to change the exposure (which  I guess is the exposure time ?).

      I can use v4l2-ctl to get the exposure which is the default at 1466.  But the command :

      v4l2-ctl -d 0 -c exposure=500

      Doesn’t return any error but just do nothing and doesn’t change the exposure. How can I set the exposure time on this camera (writing the register ?) ?

    • #29405
      Arducam jyh
      Moderator

      Hi,

      Did you turn on the camera when you set the exposure? The command to set the camera will only take effect when the camera is turned on.

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