Sometimes we need to see if a device is connect at USB 2.0 speeds or not.
Unfortunately, lsusb do not give this information out of the box. We need to check the /sys/bus/usb and find the right device.So a create a simple script to do it in a simple way. $ ./checkUsbSpeed.sh <string>
$ lsusb Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 003 Device 003: ID 0fe6:9700 Kontron (Industrial Computer Source / ICS Advent) DM9601 Fast Ethernet Adapter Bus 003 Device 002: ID 046d:c526 Logitech, Inc. Nano Receiver Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 138a:003c Validity Sensors, Inc. Bus 001 Device 004: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub Bus 002 Device 003: ID 1bcf:0c31 Sunplus Innovation Technology Inc. Bus 001 Device 005: ID 046d:c52e Logitech, Inc. $ ./checkUsbSpeed.sh Sunplus
/sys/bus/usb/devices/2-1.2
Sunplus Innovation Technology.: 480Mbps
It will tell you where in /sys/bus/usb the device is, the name of the manufacturer and the speed. |
