USB utilities for Linux, including lsusb. Contribute to gregkh/usbutils development by creating an account on GitHub.

2008年7月9日 ... 過去数回に渡ってLinuxの起動の仕組みを紹介してきました。今回はその最後として udevとそれが利用するsysfsについて紹介しましょう。udevを使えば，従来はあらかじめ 用意しておく必要があったデバイスファイルを必要に応じて動的に作成 ...

mount -t usbfs none /proc/bus/usb cat /proc/bus/usb/devices. If you don't have the usbfs module OR /proc/bus/usb directory, then try this cat /sys/bus/usb/devices/*/ product.

Jun 5, 2015 ... "If it quacks like a keyboard and types like a keyboard it must be a keyboard." That's not always true. The lsusb utillity takes his information from a file called /var /lib/usbutils/usb.ids to look up the vendor ids, product ids, classes, ...

A 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. It's essentially a USB multiplexer. A root hub, AFAIK, is a USB hub that's internal. For example, there might ony ...

... now, we can retrieve device data by lsusb -D /dev/bus/usb/$busnum/$devnum echo "busnum=$busnum, devnum=$devnum" ... fi fi done echo "\$1 not found :-(" } ENDL $ source ~/.bashrc $ gousb 0a5c:21e6 $ pwd /sys/bus/usb/devices/2-1.4.

lsusb may try to open the USB device as O_RDWR (read/write mode) and your user might not have the rights to do this (some error message "Couldn't open device, some information will be missing" should be inbetween the output, if so).

Jan 2, 2013 ... Initially, lsusb seems to count devices from 1, /sys from 0. So 10-2 is a good guess for where to find the APC UPS lsusb gives as bus 10, device 3. Unfortunately, over time that mapping breaks down—sysfs re-uses numbers ...

Supposing I'm trying to find the device for my UVC camera, lsusb gives me: Bus 001 Device 004: ID 1e4e:0102 Cubeternet GL-UPC822 UVC WebCam. The device filename is then /dev/bus/usb/001/004 (first component is bus id, next is device ...

lsusb command queries information about currently plugged USB devices. You can use its -d option to query a certain vendor/product (but it seems to work only for currently plugged devices): $ lsusb -d 0e21:0750 Bus 001 ...