Questions tagged [usb]

Universal Serial Bus (USB) establishes a connection between devices and a host computer.

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Bios not recognizing bootable usb

I have Lenovo y480 with Ubuntu installed on it. I installed Ubuntu from a bootable usb. Also, My computer was able to boot into live Ubuntu on usb fine. Today my laptop stopped recognizing any kind of ...
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How to disable the dpi button of my mouse?

I have a wireless usb mouse (ItWorks WM791) with a dpi button that allows me to switch between three mouse speeds. This button is defective (well... I broke it) and my mouse randomly changes its speed ...
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Arduino: avrdude: ser_open(): can't open device “/dev/ttyACM1”: Input/output error

I use arduino ide on arch linux with arduino uno connected via USB. I am sure that I choosed right port and board in ide menu. when I run ls -l /dev/ttyACM* I get: crw-rw---- 1 root uucp 166, 0 14. ...
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MIDI-USB connection not recognized by Ubuntu

I've got a digital piano and an A/B MIDI-USB cable plugged into it, to my PC in order to use it as MIDI controller. For an inexplicable reason, the connection is not recognized. lsusb does not list ...
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Recently purchased a WAVLINK Display Adapter, and need a driver for Linux Mint

I am currently using Linux Mint 20 Cinnamon, and I recently purchased a WAVLINK USB 3.0 Display Adapter (WL-UG3501D), and the drivers provided only work with Windows and Mac OS. Is there any way to ...
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USB memory stick unmounts and vanishes

I bought this device a few days ago, and checked it with utility f3. It is ostensibly a Philips 256 memory stick, internally seen as an Bus 002 Device 034: ID 090c:2000 Silicon Motion, Inc. - Taiwan (...
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USB Barcode scanner returns values in wrong order

I have this Netum USB wired Barcode scanner which shows as BLM103 Virtual COM Port from the device list. When used on Windows the scanner returns the read values properly, but for some reason on Mac ...
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Darkice not dying when audio device goes away

I have darkice that is transmitting a stream to an icecast server. Icecast is started by systemd. When the USB device is disconnected I see in the logs Apr 09 12:24:32 scanner1 darkice[3803072]: ...
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Is It Possible/Advisable to Change Device USB Device Status from Terminal?

Running Pop_OS 20.10, I'm occasionally having problems with my headset not working after waking from sleep. The device is plugged in, and the issue persists even after switching from one USB to ...
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How to disable only part of a composite USB device? (eg: media remote)

I have a media remote for controlling videos, unfortunately its integrated "Air mouse" is less helpful and more annoying. Even the "lock air mouse off" toggle button seems to keep ...
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What is ATTRS{configuration}?

I connected an usb camera to my vmware ubuntu and ran udevadm info -a /sys/bus/usb/devices/3-4.1:1.0 Here is the output: looking at device '/devices/pci0000:00/0000:00:15.0/0000:03:00.0/usb3/3-4/3-4....
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Change Authorization of usb bus

I am trying to modify authorizations of usb devices. First I connect my android phone with MTP and run this command echo 0 > /sys/bus/usb/devices/3-1:1.0/authorized echo 1 > /sys/bus/usb/devices/...
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USB PHY 2.0 Webcam's Mic. Work in Windows, but not work in linux

I have a webcam, SPC WC02, webcam. It works in Windows, but not works in linux. I test it with https://mictests.com/, When I test in linux, the website give me a message The audio track is paused.. ...
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What is dmesg telling me about this USB SSD?

The drive was working fine booting to Ubuntu Mate on a RPi4. I reformatted it before attempting to use it with Berryboot on a new RPi4. During BB installation I got an "Unable to unmount ..."...
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How can I get my USB Wi-Fi adapter TP-Link TL-WN823N to work in Kali Linux in VirtualBox?

I am trying to use my TP-Link TL-WN823N in VirtualBox with Kali Linux, but I can't see it in the USB devices.  I see the TL-WN823N in the bridge card. What can I do?
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USB drive “is not a block device”

I am running Artix Linux on a System76 Galago. When I plug in a USB device it appears as /dev/usb/003/00X. Example lsusb output: Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 ...
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USB-C to HDMI adapter drivers?

Is there any available open source USB-C to HDMI drivers for Debian 10? I am using the following operating system: Linux debian 4.19.0-14-amd64 #1 SMP Debian 4.19.171-2 (2021-01-30) x86_64 GNU/Linux ...
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How to attest that my USB hard disk is really defective or not?

A few years ago, I bought a 500GB Essentiel B external USB hard drive from Boulanger (a multimedia store in France). Since then I have had 2 failures of the order of 1x / 2 years which seem to lose ...
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Mass Storage Gadget (MSG) and USB port mode

Could someone explain to me how to tell the MSG module which USB port to use and how to put this USB port in USB host/device mode to access the mass storage created by the module?
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usb/ethernet interface in Linux using AX88179_178A adapter

I have looked at past questions on this, including How to set up an usb/ethernet interface in Linux? , and have tried all suggestions within, but I cannot set up a usb/ethernet interface in Linux ...
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How does Linux decide when to reuse USB minor device numbers?

When USB devices are connected in Linux the kernel assigns them a minor device number (i.e. the 0 in /dev/ttyUSB0). It seems that if I have a device at /dev/ttyUSB0, when I remove it and plug in a new ...
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Severe loss of USB performance for devices connected upon connecting anything to a particular USB port

I currently have two machines, both with Debian 10 installed, but when I connected my external hard drive to my laptop, the performance of the mouse and keyboard is rendered unusable. This doesn't ...
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Want to link to a USB Host via my laptop [duplicate]

I have this device that has to be setup as a USB Host. Normally, my laptop is a USB Host, how do I connect to such a device? When I plug the USB cable into my laptop, I don't see a tty being assigned ...
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Use DWC3 module to put USB-C port in Host mode

I have a project which consists into using a device running Ubuntu server which will be connected to a windows computer through a USB-C/USB-A cable. The USB-C would be connected the Ubuntu device and ...
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Split single (micro)-usb to several independent aux channels

I have a Raspberry Pi Zero with Debian Linux running home automation software. Instead of using different phones' alarm clock for awakening in the morning I would like to manage it in centralized ...
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dmesg shows 0 512-byte logical blocks

Last week I unfortunatly dropped by external HDD drive and it wouldn't spin up anymore. I got other backups, so I thoughed I opened it up so see whats wrong. The read/write head was stuck and damaged, ...
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Can't connect to WiFi with USB adapter

On an old 32 bit system with an up-to-date Debian Buster I wanted to use a WiFi USB adapter. I bought this adapter based on a recommendation on this German Debian site. It can scan for networks but I ...
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Where does Chrome OS, linux (beta) mount usb devices when forwarded

I am running chrome os Version 90.0.4411.0 (Official Build) dev (64-bit) I have gone into settings and enabled my usb device and when I go into the terminal and run lsusb this is what I get Bus 002 ...
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PCIe3.0 USB 3.2 Gen 2x2 card limited to USB 3.1 Gen 1 speeds or appears to be? Can't figure out why

I've recently installed two Ableconn PEX-UB159 USB 3.2 Gen 2x2 (20 Gbps) PCIe 3.0 cards into an older server I have that has PCIe 3.0 8x/16x slots. I'm running Ubuntu 20.04.2 LTS on (kernel 5.11-...
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USB-Stick not recognizable by fdisk -l [closed]

I have a USB-Stick, that does not get properly recognized. In lsusb I get the following entry: Bus 001 Device 015: ID ffff:1201 However in fdisk -l I don't see the stick as a option. It is also not ...
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How to disable a USB port

The cable connecting the webcam and my laptop seems to be broken. As a result, the webcam keeps connecting and disconnecting all the time. Is it possible to disable a USB port? A sample of the dmesg ...
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USB not reading with Pop OS (Linux distribution)

I was trying to download the Linux distribution Pop OS, but when I put it on the USB it said I needed to download the Kernal. Will you please tell me what this means? I've tried wiping the drive, but ...
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“/dev/hidg0” error in linux?

I'm trying to make my Raspberry Pi Zero W a USB device. I'm using this page to do so. When I try to run the main script (raspiducky.py), I get this error: /dev/hidg0: Cannot send after transport ...
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Alfa AWUS036nha external USB adapter doesn't work with Ubuntu 18.04

I am a budding Ubuntu user and unfortunately have been facing "WiFi adapter not found" for ages now on Ubuntu 18.04. Hence based on web research, I found that Atheros AR9271 USB driver works ...
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How can I prevent USB drivers (EHCI) from loading on specific USB controller (PCIe card)?

I'm using Debian 10.8 with Linux Kernel 4.19.0-14. I'm trying to use IOMMU to passthrough an entire USB controller (PCI Express card), but I'm having problems. The kernel is loading the ohci_pci and ...
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Why isn't the USB device being enumerated correctly after reset?

I have an embedded Linux device connected to a Sierra Wireless WP7610. The WP7610 has three USB serial ports which are enumerated as 0, 1 and 2. This is fine until the WP7610 resets, for instance by ...
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aplay lists the device, but pulseaudio thinks it's locked and won't detect it

I'm using Pop!_OS 20.10 and I have an intermittent problem that seems to happen reliably when I disconnect and reconnect my USB microphone "too often" or "too many times". I would ...
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Plugged USB stick into macbook and all data was wiped

I plugged a 32GB usb stick into a 2019 macbook pro and all data was automatically and immediately removed. OSX shows no data on the stick. There used to be data on the stick. I went back to my linux ...
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What is a good read and write speed for a USB to run Arch Linux smoothly?

How much read and write speed should a USB have to run Arch Linux (an actual installation to the USB not live) smoothly without lag?
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Getting a Toshiba 4610 Receipt Printer to work on Linux

I have a Toshiba receipt printer, model 4610-2CR (originally an IBM design), that I want to use from Linux. I have it connected over USB to a computer running Ubuntu 20.04. The output of dmesg shows ...
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Exclusive vs. non-exclusive USB devices for KVM

Why is it that some kind of USB devices (e.g. web camera) are exclusively assigned* to a KVM virtual machine, while others (e.g. mouse, keyboard) can be shared between host/VM/other VMs? *exclusively ...
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Why USB ports are not working on Linux mint 19.3?

I installed Linux mint on an old ASUS laptop. My problem is that USB mouse and USB keyboard are not working. I'm sure that the mouse is getting power because its light is working. I tried to lsusb but ...
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Map file system path of USB serial adapter to USB bus and device number

I have two identical USB serial adapters attached to a Raspberry Pi. One of them regularly crashes (no idea why, maybe a kernel bug – the hardware was already replaced) but it seems to work again ...
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Why does my USB modem produce multiple /dev/ttyUSB* files? In that, which one I have to select for AT commands?

Why does my USB modem produce multiple /dev/ttyUSB* files? In that, which one I have to select for AT commands? I'm using SIM7600 module in Linux system. This is my lsusb output.
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Writing ISO to USB in CentOS

I've written many ISO images to USB in the past. However, for some reason, I'm unable to complete this task on multiple machines running CentOS in my lab. The scenario is fairly simple. I have an ...
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Ubuntu Mac mini (2018) Macmini8,1: usb-c capped at 480 Mb/s

usb works on the two 5 Gb/s usb-a ports However, usb-c does not recognize devices set for a speed above 480 Mb/s When such devices are plugged in dmesg --human --follow outputs nothing The usb ...
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What's the best/easiest way to create a usb connection from Windows to Linux

I'm wondering what's the best way for me to setup a usb connection from Windows to a remote linux servers (Redhat)? I did some Googling and found socat but that was for Linux to Linux, any ideas? My ...
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Printer not detected but present on cups server

I have a Brother printer with following configuration: Description: Brother HL-L2360D series Location: localhost.localdomain Driver: Brother HL-L2360D for CUPS (grayscale, 2-sided printing) ...
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Unable to set USB gadget device class and protocol

I'm unable to successfully set the bDeviceClass, bDeviceProtocol, or bDeviceSubClass when configuring a device as an RNDIS gadget in /sys/kernel/config/usb_gadget/g1. I'm configuring the gadget with ...
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inserting and removing USB 3.x flash drive “fixes” USB 3.2 SSD speeds (was running at 2.0 speeds before)

I recently purchased a SanDisk 2TB Extreme PRO Portable SSD (model SDSSDE81-2t00). Upon plugging it into my Linux machine to perform a backup, I noticed it was running slowly. After some tests with dd ...

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