3/6/2024 0 Comments Debian 9 usb mouse lsusbRun lsusb.py -i to see their names.Įxample from a desktop, where you can see a keyboard having two HID interfaces for some reason (it would be more common for fancy 'gaming' keyboards): # lsusb.py -I a 4G modem would have a serial port + a virtual Ethernet interface, and a YubiKey NEO will have a HID device for U2F + a fake keyboard for legacy Yubikey OTP. A USB device can provide multiple interfaces, e.g. (On Windows this is handed by the driver, on Linux it could be done manually via /sys.)įinally, the number following. 4G/LTE modems could be set to "AT mode" or "MBIM mode" or "QMI mode". ![]() Some devices can be switched between multiple configurations (only one active at a time), with each providing different interfaces – e.g. The number following the : shows the active configuration of that device. py tool to see the topology in better detail (the script comes from the same "usbutils" as lsusb itself does). Even if you don't have any external hubs, often there will be internal hubs. ![]() ![]() It is followed by a series of hub port numbers separated by dots. According to hints in Documentation/ABI/stable/sysfs-bus-usb, the general format is:.
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