March 2017
Intermediate to advanced
732 pages
15h 24m
English
Content preview from GNU/Linux Rapid Embedded ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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The USB tools
USB devices connected to our system can be listed and inquired by some specific utilities in the usbutils package (the package should be already installed, in case we can done it in the usual ways).
If we can even use sysfs to inspect connected devices, using these tools, the developer can simplify their job. For example, to get a list of connected USB devices, we can use the following command line:
root@bbb:~# lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
In this example, on our BeagleBone Black, we get the root hub only (the root hub is a phony device and represents the USB bus itself into the system. It always has a device number of one on whatever bus it sits on and a fixed manufacturer, that is, Linux Foundation ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.