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fopen() error: permission denied on jetson nano for ad-96tof1-ebz

NehalK

on May 30, 2024

Category: Software

Product Number: ad-96tof1-ebz

Software Version: aditof_sdk 3.1.0

I am trying to run the aditof-demo for ad96tof1 sensor and I am getting the permission denied error for fopen() function in eeprom.cpp

See the following log.

I0114 09:36:36.030292 17818 system_impl.cpp:116] SDK version: 3.1.0 | branch: HEAD | commit: 6a6ab0a

I0114 09:36:36.031961 17818 system_impl.cpp:121] SDK built with websockets version:3.1.0

I0114 09:36:36.090860 17818 sensor_enumerator_jetson.cpp:48] Looking for devices on the target: Jetson

I0114 09:36:36.095347 17818 camera_96tof1.cpp:152] Initializing camera

I0114 09:36:36.095558 17818 addi9036_sensor.cpp:149] Opening device

I0114 09:36:36.095654 17818 addi9036_sensor.cpp:167] Looking for the following cards:

I0114 09:36:36.095721 17818 addi9036_sensor.cpp:169] vi-output, addi9036 6-0064

E0114 09:36:36.120378 17818 eeprom.cpp:64] fopen() failed. Error: Permission denied

E0114 09:36:36.122148 17818 camera_96tof1.cpp:178] Failed to open EEPROM with name 24c1024

I0114 09:36:36.127333 17818 addi9036_sensor.cpp:266] Starting device 0

I0114 09:36:36.128038 17818 camera_96tof1.cpp:241] Chosen mode: near

I0114 09:36:36.128185 17818 camera_96tof1.cpp:285] Camera range for mode: near is: 250 mm and 800 mm

W0114 09:36:36.128270 17818 camera_96tof1.cpp:292] Failed to read firmware from eeprom

This is happening in every demo example.

and i observed that the eeprom mentioned in 53-aditofsdkjetson.rules does not exist in /sys/bus/i2c/devices/6-0056/. also it shows 6-0064 in above log so should we change that here in the 53-aditofsdkjetson.rules file?

please help se the proper permissions needed to run the demo.

thanks.

Tags: software eeprom Optical Sensing Technology Time of Flight (ToF) Sensors and Solutions fopen() ERROR :PERMISSION DENIED Jetson nano aditof_sdk 3.1.0 AD-96TOF1-EBZ Show More

DNechita

on Jun 7, 2024 8:23 AM
Hi,

Does it work if you run the demo with 'sudo'? Or that doesn't help either?
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NehalK
on Jun 7, 2024 8:50 AM in reply to DNechita
I was running it with "sudo'' only.

I used i2cdetect for checking the connection and had to change the port. And after restart it worked for me.

In current SD card image I am unable to use the internet using usb tethering and also I am unable to use the wifi adaptor also.

I had also installed the appropriate drivers and this drives works with another jetson image.

There was also issue with building the driver since there are no built modules in the /lib/modules/4.9.140-tegra.

How can I resolve that?

Alternatively, I'm trying to build the new kernel with instructions from wiki.analog.com/.../ug_jetson on latest jetson nano image[new image taken from https://developer.nvidia.com/embedded/learn/get-started-jetson-nano-devkit#write] for tof sensor to work.

I did all the steps but after rebooting it seems like jetson did not boot up.

I connected jetson to pc using PUYTTY and I was getting log there.

Afterwords I was able tousethhe monitor via HDMI cable. Is there any specific option in kernel configuration that is responsible for dp port failure?
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