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[i.mx6d] acquisition from parallel camera interface

Question asked by Francesco Prosperi on Oct 23, 2013

Hi,

 

We are trying to acquire image data from a camera connected to the Parallel Camera Interface.

 

We are using an i.mx6dual with kernel 3.0.35 with some patches for our board (the SB-FX6 + CM-FX6) provided by Compulab.

 

In the imx-test suite, we examined the mxc_ipudev_test example program, but it seems to use the IC device (inside the IPU) to make

some operations to the data read from a binary file so, in our opinion, is not an example of ipu capture.

 

Another example program (mxc_v4l2_capture) shows the interaction with the /dev/video0 device.

 

In the kernel menuconfig, we enabled all the components as built-in it should need to enable /dev/video0 but it does not show up

at runtime. Attached is the .config of the kernel in use for verification.

 

Could you please tell us how to enable the debug messages inside the v4l2 driver? There are a number of pr_debug() calls

but the messages do not show up in the dmesg (drivers/media/video/mxc/capture/mxc_v4l2_capture.c).

 

Thanks for the help,

 

Regards,

Francesco e Daniele

Original Attachment has been moved to: .config.zip

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