#Lsusb linux drivers
We also see that we also have USB 2.0 root hub drivers and USB 1.1 root hub drivers attach in our system. lsusb will show you the drivers and device which is internally attached on your system. To run lsusb, you can type lsusb directly from console. The widely used lsusb command can be used to list all the connected USB devices in Linux.
#Lsusb linux install
For Fedora, use dnf command to install lsusb. For RHEL/CentOS, use YUM command to install lsusb. For Debian/Ubuntu, use apt-get command or apt command to install lsusb. Lsusb is available in distribution official repository so, we can easily install through distribution package manager. To make use of all the features of this program, you need to have a Linux kernel which supports the /dev/bus/usb interface, all recent versions do. Lsusb is a utility for displaying information about USB buses in the system and the devices connected to them. This information is gathered by scanning the /dev/bus/usb for information about the connected device, the device id, and vendor information. The properties displayed are speed, BUS, class, type details, etc. The lsusb command in Linux is used to display the information about USB buses and the devices connected to them.
#Lsusb linux Bluetooth
The Bluetooth device is the chip inside your computer that actually broadcasts Bluetooth radio traffic. For example, there might ony be one USB slot in your motherboard, but there are multiple external ports because there's an internal root hub plugged into the motherboard. It's essentially a USB multiplexer.Ī root hub, AFAIK, is a USB hub that's internal. You can try plugging in a device and running lsusb again to see which port is connected to which bus.Ī USB hub is a device that has one cord that plugs into one USB port, but provides multiple USB ports for you to plug devices into. Some or all of these might have external ports for plugging in various USB external devices. And you have two high-speed USB buses and six low-speed ones.
So this output indicates that you have eight (!) built-in USB buses, with three devices connected to them. On the same bus is the AuthenTec device, which is a fingerprint scanner, again low-speed. That makes sense, since Bluetooth is relatively low speed. Similarly, the Bluetooth device is internal (as strugee noted) and again is connected to a USB bus, in this case Bus 004, which is a USB 1.1 (low-speed) bus.
(Again, it's labeled as Device 002 because the bus itself is Device 001.) The SanDisk device might present itself to the outside world as a PCMCIA slot (I'm guessing) but internally it's connected to USB Bus 001. I believe that the whole "Linux Foundation" thing came about because the physical device has PCI, not USB, identifiers. A "USB root hub" represents the physical PCI device. They're made by Intel, not the Linux Foundation. For instance, on my machine I have two USB buses, and two USB Host Controllers visible by the lspci command. (A subtle point - there actually is a " USB Host Controller" that is a physical device - but it's NOT itself a USB device! It's normally a PCI device. The "manufacturer" is always 1d6b, the "Linux Foundation," but so far as I can tell, that's merely to create a "root" for the tree's "branches" (as you'll see from lsusb -t, as suggested by Wagner). It always has a device number of 1 on whatever bus it sits on. The "root hub" is a phony device and represents the bus itself.
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