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

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Linux Mint: ACPI PCC probe and usb descriptor errors during boot

I'm getting a lot of errors during bootup on Linux Mint 17.3 Cinnamon 64 bit. For the most time, I've been able to boot (the error messages just flash and disappear) with no problems with my system. A ...
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22 views

Possibilty of DisplayPort over PCIe

I'm trying to figure out if it would be possible to add a DisplayPort to my Linux PC using a PCIe slot. I have found cards like http://www.ebay.com/itm/PCI-E-1x-Express-to-USB-3-1-Type-C-Dual-Port-...
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1answer
35 views

USB LABEL in different language

If the USB LABEL (name) is in different langauage (Hindi or Chinese) how do i get to know which language it is coded to pass to the iconv or is there any way we can know the language which has been ...
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2answers
192 views

Why does it take so long to detect an usb stick?

I'm writing an initramfs-script and want to detect usb-sticks as fast as possible. When I insert an usb 2.0 stick, the detection of idVendor, idProduct and USB class happens within 100 ms. But the ...
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1answer
27 views

How to install packages onto a flash drive

I have a computer with Ubuntu Linux, and I have no more room on PC, so I have a flash drive that I want to install packages onto, is there any way to install a package onto a flash drive?
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1answer
54 views

Bluetooth dongle suddenly dissapears

A bluetooth dongle attached to my banana pi suddenly dissapears from the usb devices list. Lsusb doesnt show it at all, but maybe this is interesting, a piece from dmesg: [ 14.777099] udevd[167]: ...
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2answers
75 views

Can't mount anywhere but to /mnt

My system has developed a strange defect after a distribution upgrade (OpenSuSE 12.3 -> 13.2). I have various USB devices that I want to mount to different top-level directories: the backup drive to /...
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1answer
34 views

USB only detected when connected to internet

For some reason, my laptop does not detect USBs at all unless I am connected to the internet. (I also am not very good at using Ubuntu, so I have no idea what could cause the problem.) Note: I have ...
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2answers
129 views

fdisk: could not detect sector size of USB hard disk on FreeBSD

I have an NTFS formatted USB hard disk that works fine (mounts and unmounts cleanly) on my windows desktop. I can't however seem to mount it on my freebsd box at all. Stripping this back to the ...
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0answers
44 views

USB audio not working when plugged in during boot

I have a problem with the audio in my ThinkPad OneLink Pro Dock not working with Linux. I have had this problem with OpenSUSE 42.1, Tumbleweed and Fedora 23. I think I will have it with any other ...
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81 views

USB Serial Port Settings With STTY

I needed a way to connect to a usb serial port to send and receive data from Arduino boards. I found a really awesome little script that was working great, until it suddenly stopped working. The ...
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0answers
211 views

USB ports do not wake up from suspend to RAM

I have an AMD Athlon 5350 (desktop, not a notebook) and recently upgraded from openSUSE 13.2 to Tumbleweed (openSUSE's rolling release). After that I gave suspend to RAM another try after it had just ...
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0answers
41 views

Cannot install D-Link wireless Range Booster N usb on kali linux VMWARE

I have a D-Link Range Booster and tried to use it with KALI in vmware. I have it installed on my Physical Windows machine then when I use it with kali it doesn't detect it. This is the vmware sign ...
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2answers
120 views

Mounting efi disk on external USB

Recently I bought new sshd to replace my old one on my notebook, but I have problem. I installed Ubuntu 15.10 on new one and put the old on usb case I have, but the disk on USB doesnt have partition (...
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0answers
48 views

How to set usb stick's ntfs filesystem's attribute to readonly in linux

I know how to set readonly attribute to ntfs filesystem of a usb device by using diskpart tool in windows. attributes disk set readonly but how to set readonly attribute to the same usb device ...
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2answers
145 views

USB flash drive formatted as “Linux Live CD” keeps the CD-ROM name after re-partitioning

I have an USB flash drive that I formerly used as installation medium for Linux Fedora. The stick still has the "Fedora Live USB" installation files on it. When I insert it into my olde laptoppe, it ...
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0answers
27 views

Null device handler and serial number is 0

I am working with a camera that connects via usb. When connecting the device, dmesg shows the serial number as 0 and when I try to run code to take an image, I get a Null handler error. I figure the ...
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0answers
55 views

Polling for a Bluetooth Button Push

I have a bluetooth button that I have successfully paired several times with various raspberry pi's and linux boxes. The button works as a unique doorbell and various other applications, but I have ...
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2answers
111 views

How to install Kali Linux on a usb flashdrive [closed]

I was wondering is there any way to install Kali Linux on a usb drive instead of my SSD. I have a 32GB flash drive that I want to use instead of an SSD partition. The reason for this is that i want to ...
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0answers
62 views

Linux - Reset Linux Foundation 2.0 root hub

I would need to reset the USB root hub on Linux. Specifically, each time lsusb is executed, the Linux Foundation's root hub with Vendor ID 1d6b is shown: # lsusb | grep 'Linux Foundation' Bus 003 ...
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212 views

Attach UVC camera to non-V4l2 Android device without rooting

The main issue is arising when I am trying to connect UVC compliant camera having CMOS sensor OV6612, to an Android device having kernel 3.0.x and OS 4.0.x, not having v4l2 driver. And no streamed ...
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11 views

Texas TI RFID Reader Hardware

[ 7598.927163] usb 1-1.3: USB disconnect, device number 10 [ 7636.541074] usb 1-1.3: new full-speed USB device number 11 using dwc_otg [ 7636.646870] usb 1-1.3: New USB device found, idVendor=2047, ...
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1answer
67 views

disabling usb device debian [duplicate]

How can I disable a usb device on debian? I am using a macbook pro but I have installed debian jessie 8.2 on it. the USB device: Card Reader (Apple) is pulling way too much power and I don't even use ...
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47 views

ADB doesn't recognize a Samsung GT-I9000

I've connected the phone via USB. The phone is rooted, USB debugging is enabled and ADB has root access. The system is a vanilla Debian 8.3.0. lsusb: [...] Bus 002 Device 004: ID 04e8:685e Samsung ...
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1answer
58 views

find serial com port

I'm using a CH341-UART Converter for sending some string data to USB port. How can I find the COM port number for connected device? For example in this program: import serial ComPort = serial....
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1answer
44 views

What format gives photorec to files?

I have to recover a file from my usb. I didn't find it on the net. How does photorec call files of unknown format? For instance, I have a file named *.jks . How can I find it in the recovered ...
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1answer
212 views

How to check the erase block size of a Usb flash under Linux?

How to check the erase block size of a USB flash under Linux? Someone said /proc/mtd might be helpful, while for my Centos7 server, there isn't such file. Thanks in advance. Updated on Jan 28 2016: ...
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2answers
127 views

I can't access my USB device after mkfs.ntfs command

I had used these commands (as root): umount /dev/sdb1 After, mkfs.ntfs /dev/sdb1 It took a long time to format it and I couldn't wait it. Before it finished formatting, I had canceled operation. ...
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1answer
47 views

Unable to mount USB media in sagem fast3304 V2 router (busybox v1.01 inside)

I have a wireless router that runs busybox (V1.0). A media server (Twonky Media Version 3.4) running on this router. I would like to use its USB port to mount an external drive containing mutltimedia ...
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0answers
52 views

How can I figure out why an HID unikey device is not being recognized by the software needing it?

I have a custom built CentOS machine. For those of you who know Vagrant, the image is at https://atlas.hashicorp.com/puppetlabs/boxes/centos-7.2-64-puppet. When I connect an HID Unikey device to this ...
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2answers
83 views

How to recover a totally dead USB?

I have been loading a USB with an .iso image to run Ubuntu live. It worked on Apple and did not on other laptops. After wiping, re-downloading, re-formating, re-partitioning to try make it work, it ...
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389 views

How to install DisplayLink driver on LinuxMint 17.3

I have a USB 3.0 docking station connected with my laptop having LinuxMint 17.3. I can't manage to install DisplayLink driver on it. I could make it work with Ubuntu 15.04, but with LinuxMint it wan't ...
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155 views

Is there a general USB 3.0 support in OpenWrt?

the only information i found about this topic is outdated since 2011/02: it says there is no support for devices with usb 3.0 "so far"! according to the german wikipedia since version 2.6.30 the ...
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0answers
66 views

How to install ubuntu on live USB stick that I booted from?

I have a old netbook with single USB port and broken harddrive. I've somehow aquired a 16gb lubuntu 15.10 willy live USB. I want to use this as primary OS on my netbook. Since I don't have access to ...
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1answer
189 views

USB Bluetooth dongle not working

I am struggling to get my bluetooth adapter work on my Linux desktop. I see it when I plug it in, but basically, nothing else works correctly: $ lsusb Bus 002 Device 006: ID 0a12:0002 Cambridge ...
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1answer
114 views

How do I load a kernel module later in the boot sequence?

I've been experimenting with the g_mass_storage kernel module. I first tried loading it by putting it in /etc/modules and the options in /etc/modprobe.d/file.conf This worked, but when I connected ...
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177 views

How do I mount a USB external hard drive in RHEL rescue mode

I had a boot failure on a RHEL 6.2 machine and I can now only start it in rescue mode with the recovery CD. I would like to move all the data to an external USB-mounted drive but I am having problems. ...
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132 views

How can one determine whether an internal SD card reader is connected to internal USB3 hub?

I have a Dell Chromebook 11, which has two external USB3 ports, and an SD card reader. I am trying to establish whether buying a fast SD card would be worth it, compared to a fast USB stick, as a ...
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1answer
21 views

How to recycle USB device names on Linux after forced removal

When a mounted USB stick is manually unplugged (without unmounting it) the device name in /dev (e.g. /dev/sda ) is somehow reserved, plugging it on again will yield on my system the alphabetically ...
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17 views

stty: /dev/dtyU0: Invalid argument (NetBSD USB to serial interface)

I'm trying to interface a USB oscilloscope (Syscomp CGR101) to NetBSD. The 'scope has an FTDI USB-to-RS232 interface inside it. When I try stty -f /dev/dtyU0 I get back "Invalid argument" whether ...
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0answers
47 views

udev: Wrong symlink is made at boot time

I am trying to create a udev rule to give a static name to a ttyUSB (a FTDI USB serial cable). My rule is quite simple (the file is named 99-usb-serial.rules): KERNEL=="ttyUSB?", ATTRS{serial}==...
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1answer
63 views

How to give a custom name to a serial device on connection?

I am working on ROS under Ubuntu 14.04 on an Odroid XU3 (ARM dev board). I connect two USB devices to my dev board which are recognized as ttyACM0 and ttyACM1 according to the time when they are ...
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1answer
79 views

My printer in /dev/usb/lp0 always disappear after few seconds, and can't print, how to fix it? (Ubuntu 14.04)

Please, help... I have a 'EPPOS Model EPT-58H' thermal printer. When I plugin via usb, it detected as /dev/usb/lp0 with ls -l /dev command. Then I run echo "sometext" > /dev/usb/lp0 in terminal to ...
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0answers
285 views

Multiple (combine) USB sound cards with Alsa + Jack + Pure Data

I'm a musician and I'm new to PI/Raspbian/Linux. I'm using a Raspberry PI 2 with Pure Data (PD) for a multichannel audio installation. I have one 5.1 USB soundcard (6 channels) but for my installation ...
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1answer
45 views

Is host-to-host file transfer possible using USB Type-C?

I'm doing a warranty replacement on my Chromebook Pixel 2, and want to transfer data from one laptop to another. The Pixel 2 has two USB type-C ports. I'm running Arch Linux on the old one. I'd like ...
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0answers
81 views

Struggling to boot linux with full disk encryption from USB

I would like to be able to boot linux (mint or ubuntu preferred) on my desktop from a fully encrypted USB stick. Apparently this is possible, however the solution has eluded me. Please forgive my ...
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0answers
102 views

Ubuntu Mint 17.2 ,USB Mouse and Keyboard sometimes only works in Safe Mode

Occasionally , when I restart the computer. The usb mouse and keyboard do not work by the time its ready to log in. They always work in safe mode, and the keyboard and mouse always works on the duel ...
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1answer
35 views

LCD USB communication

This is on Arch Linux. I connected it and using dmesg I got the output: [ 78.637285] usb 5-2: USB disconnect, device number 3 [ 78.953772] usb 5-2: new full-speed USB device number 4 using ...
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1answer
44 views

Error copying file in mounted usb

I'm formatting an USB pen drive. For this I run the following commands: First umount the device: sudo umount /run/media/myuser/folder_where_is_mounted (I'm runing manjaro and is in /run where ...
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116 views

Yumi + mint 17.3 = login screen

I want to create a mint usb installer. When I do, and I try to install, mint comes up with a login screen. Tried various combo's of names and passwords, nothing works. Nothing else to do but ...