January 2019
Intermediate to advanced
458 pages
10h 35m
English
Content preview from Hands-On Embedded Programming with C++17
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Permissions
Since both the GPIO and I2C are treated as common Linux devices, they come with their own set of permissions. Assuming one wishes to avoid running the service as root, we need to add an account that runs the service to both the gpio and i2c user groups:
sudo usermod -a -G gpio user
sudo usermod -a -G i2c user
After this, we need to restart the system (or log out and in again) for the changes to take effect. We should now be able to run the service without any issues.
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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