如何在 Ubuntu 上授予英特尔实感摄像头的权限

Question

OS:Ubuntu 18.04 camera: Intel realsense D415

I can use cheese to show the compound image of the camera. But when I run

import pyrealsense2 as rs
pipeline = rs.pipeline()
pipeline.start()

It throws out error access failed for 8086:ad6 uid: 1-1-12 Is anyone that knows how to solve this? Thanks!

Answer 1

You need to install Intel Realsense permission scripts located in librealsense source directory.

For that, first, git clone the librealsense to a local folder

git clone https://github.com/IntelRealSense/librealsense

Next, run the following commands to copy the 99-realsense-libusb.rules files to the rules.d folder

sudo cp config/99-realsense-libusb.rules /etc/udev/rules.d/

And, then udevadm control to modify the internal state of the running udev dameon to reload rules. Also, udevadm trigger to request device events from the kernel.

sudo udevadm control --reload-rules
sudo udevadm trigger

Update : I recently faced the Runtime error: backend-v412.cpp:988 - Frames didn't arrived within 5 seconds . Seems like the pipeline is not able to handle the framebuffers, and there is quite a lot of drop in the frames, specifically above 720p, 15 frames/sec.

Any resolutions?

Update 2:

Resolution: As suspected it is a pipelining issue w.r.t the amount of the data the USB port can carry. To prevent frame drop or overload of data through the USB, it has to be connected to a Motherboard that has USB 3.1 Gen 1 specifications. Refer to page 78 of this document https://www.intelrealsense.com/wp-content/uploads/2020/06/Intel-RealSense-D400-Series-Datasheet-June-2020.pdf