AnsweredAssumed Answered

About Preview from V4L2 MIPI-CSI2 camera in i.MX6DQ.

Question asked by Keita Nagashima on Sep 6, 2015
Latest reply on Sep 10, 2015 by Yuri Muhin

Dear All,

 

Hello.

[Problem]

In V4L2_BUF_TYPE_VIDEO_CAPTURE, it works fine at V4L2_MEMORY_MMAP, but, it didn't work at the V4L2_MEMORY_USERPTR.

 

[Phenomenon]

Data isn't written in the acquired buffer by "ioctl(fd, VIDIOC_DQBUF, &buf)".

 

[Question]

My customer want to use the V4L2_MEMORY_USERPTR.

Is it supporting V4L2_MEMORY_USERPTR in i.MX6DQ with L3.14.28?

 

[Other]

The function looks no support from below link.

V4L2_MEMORY_USERPTR example for iMX6

 

Best Regards

Keita

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