On bus1 the first device is the root hub which is

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On bus1 the first device is the root hub, which is what it should be. The second device is the thumb drive. On bus2 I have a root hub, but I also have an additional USB hub connected to that hub. I also have my mouse connected. Over here in this third column you can see this device number. On bus1, the first device is the hub of course and the second device is the thumb drive. On bus2 the first device is the root hub as it should be, then I have my mouse connected to that hub. Then I also have an additional virtual USB hub connected to the root hub as well. 'hw info' Command 10:33-10:57 Some distributions also include a command called 'hw info', which as you might guess stands for hardware info. It will probe the hardware in the system and then generate and overview report. I actually really like the 'hw info' command. I use it all the time. Unfortunately, it's not included on all distributions, and I'm pretty sure it's not included on this Fedora distribution--and it's not. Other distributions, such as openSUSE, do include this command. 'lspci' Command 10:58-11:58 The last command we're going to look at is the 'lspci' command. The 'lspci' command, as its name implies, lists all of the PCI devices that are currently installed in the system. The output is quite long, so let's pipe the output to the 'more' command. When we do, we can see all of the PCI devices that have been installed in the system, such as our IDE interface, our video adapter. Go to the bottom. We can see our USB controllers and we can see SCSI controller and our Ethernet controller. There's a useful option you can use with the 'lspci' command. That's the '-k' option. What it will do is display not only all the devices that are connected to the PCI bus, but then also each of the kernel modules that are used to support those devices. For example, here you can see information about the video adapter that's installed in the system.Here you can see the kernel modules that have been loaded to support that hardware device. Summary 11:59-12:17 That's it for this demonstration. In this demo we talked about viewing hardware information in a Linux system. We first looked at hardware information in the /proc directory, then we looked at hardware information in the /sys directory. Then we looked at several commands you can run from the command line to view hardware information, such as 'ls usb', 'hw info', and 'lspci'. Managing Devices on Mac OS 0:00-0:30 Let's take some time to look at managing devices on a Mac OS system. Now in this demonstration, we aren't going to go into too much detail about device management. The reason for this is the fact that Mac OS does a pretty good job about automatically downloading and installing the necessary driversfor system components. This is due to the proprietary nature of Mac systems.
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  • Spring '14
  • Liquid crystal display, Universal Serial Bus, Cathode Ray Tube

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