Issues with VC-MIPI Driver Version 0.14 on Jetson Xavier NX with Auvidea JNX30 Carrier Board about vc_mipi_nvidia HOT 4 OPEN

Hi @HBanjak, thanks for your feedback. Your first Issue will be solved with the next Release and will be tracked in #44 .Your second and third issue has to investigated by us.

from vc_mipi_nvidia.

Hello @HBanjak,

the pixelformat grey error can be fixed with multiple modes in the device-tree. In former v4l-utils versions, the string "GREY" has been converted and given to the kernel via ioctl. If it was defined, the kernel could successfully return the ioctl and it was fine. Now the newer v4l-utils will enumerate the available formats and if the format name corresponds to the given name ('RGGB' in your example), the ioctl set command will succeed and the format is set. "GREY" is still defined, but not used in the created array of the v4l2-ctl binary.

What you can do is placing an additional mode like this way:

mode0 {
	num_lanes                = NUM_LANES;
	tegra_sinterface         = "serial_a";
	...

#if LINUX_VERSION < 500
	pixel_t                  = "bayer_rggb";
#else
	mode_type                = "bayer";
	pixel_phase              = "rggb";
	csi_pixel_bit_depth      = "8";
#endif
	min_gain_val             = "0";         // mdB
	max_gain_val             = "27000";     // mdB
	...
};
mode1 {
	num_lanes                = NUM_LANES;
	tegra_sinterface         = "serial_a";
	...

#if LINUX_VERSION < 500
	pixel_t                  = "bayer_rggb";
#else
	mode_type                = "bayer";
	pixel_phase              = "rggb";
	csi_pixel_bit_depth      = "10";
#endif
	min_gain_val             = "0";         // mdB
	max_gain_val             = "27000";     // mdB
	...
};

This will add another entry 'RG10' in your v4l2-ctl --list-formats call and so it becomes switchable again.

from vc_mipi_nvidia.

Hello @HBanjak

the third problem you mentioned is related to the frequencies in Jetpack5 (35.x.y)
There you have to call the max_speed.sh script

  $ sudo ./max_speed.sh

should solve the problem.

from vc_mipi_nvidia.

Hello @bazo80

Excellent, thanks for your response!

from vc_mipi_nvidia.