Hello All,
I am working on Boundary devices (nitrogen6x) , where we connected Ov5642 parallel camera to our board ,
camera is detected fine by the following command:
root@nitrogen6x:~# dmesg | grep ov5642
[ 7.916678] mxc_v4l2_master_attach: ipu0:/csi0 parallel attached ov5642:mxc_v4l2_cap0
[ 7.923284] ov5642 2-003d: created sysfs entry for reading regs
[ 7.927913] camera ov5642 is found
But when we try to open the Ov5642 camera application following error thrown
ERROR: unrecognized std! 0 (PAL=ff, NTSC=b000
ERROR: unrecognized std! 0 (PAL=ff, NTSC=b000
ERROR: unrecognized std! 0 (PAL=ff, NTSC=b000
ERROR: v4l2 capture: VIDIOC_QBUF: buffer already queued
ERROR: v4l2 capture: VIDIOC_QBUF: buffer already queued
ERROR: v4l2 capture: VIDIOC_QBUF: buffer already queued
ERROR: v4l2 capture: VIDIOC_QBUF: buffer already queued
ERROR: v4l2 capture: VIDIOC_QBUF: buffer already queued
ERROR: v4l2 capture: VIDIOC_QBUF: buffer already queued
ERROR: v4l2 capture: Capture stream has been turned on
ERROR: v4l2 capture: mxc_v4l_dqueue timeout enc_counter 0
ERROR: v4l2 capture: mxc_v4l_dqueue timeout enc_counter 0
power_down_callback: ipu0/csi0
Please help me sort out this issue:
Regards,
Kishore P
Hi Kishore,
Please specify the following:
- Which OS is used (Android, Yocto, Buildroot, Ubuntu, Debian)?
- Which kernel version are you using? (3.0.35, 3.10.53, 3.14.28, 3.14.52)
- How do you start the camera? Are you using Gstreamer? If so, please provide your pipeline.
- Is the OV5642 sensor been bought from Boundary Devices too?
https://boundarydevices.com/product/nit6x_5mp/
Regards,
Gary
Hello Gary,
-- O.S we are using is Yocto
-- Kernel Version 3.14.28
-- We are using Jethro Image to test OV5642 camera (https://boundarydevices.com/jethro-release-of-yocto/ )
-- We brought OV5642 sensor from Boundary Devices
Regards,
Kishore P