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

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19 views

Why do we need a usbkbd driver when there is usbhid?

I discovered that it is the usbhid that controls my USB keyboard by default. I discovered it by doing rmmod usbhid. When I removed usbhid the usb keyboard stopped working. Note that usbkbd was not yet ...
3
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0answers
39 views

No /dev/hidraw device when I plug in a Yubikey

I have a Yubikey NEO, and I'm trying to get it to work on Debian. When I plug it in, I get udev events, but no /dev/hidraw? device. Here's what I know so far: cat /boot/config-$(uname -r) | grep ...
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2answers
21 views

how to know vendor id, device id, serial number of internal CD/DVD writer?

we have the usb-devices command to know the external CD/DVD writer details like serial number, vendor id, device id. But i want to know the same for internal CD/DVD writer.
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1answer
26 views

unable to access USB in virtualbox [duplicate]

I am beginner in linux-unix...In my office, i have been assigned to do work on linuxmint16. I have installed virtualbox and create two vhd. one is windows server 2008 and another one is windows 7. In ...
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1answer
13 views

Login using Private key on USB Dongle on SSH@linux

I'm presently using PPK file (public and private key pair) generated from putty to Login (password less) through ssh in Linux server and it is working well. I am exploring possibility in using my ...
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0answers
22 views

Devices inside laptop connected via USB? [closed]

I try to understand a bit on USB protocol by examining the structure of hubs and devices on my laptop but I get way too many entries? > lsusb --tree /: Bus 03.Port 1: Dev 1, Class=root_hub, ...
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0answers
7 views

FTDI FT2232H time setting

I used FTDI FT2232H in MPSSE mode, running it at 30MHz(maximum speed) clock rate and Latency Timer is 255, I have downloaded libraries from below link and compiled with my App. code: ...
0
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1answer
31 views

Can I install Linux without a disk and remove my Windows completely?

I have an old laptop with Windows 7. Just for fun, I'd like to replace the current OS with Linux; completely removing Windows. Edit: Preferably Ubuntu. Can this be done without a blank disc? Can USB ...
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14 views

usbmount mounted lots of USBs when I only have 2

So I installed usbmount on my raspberry pi and it mounted: usb0, usb1, usb2, usb3, ... usb7, but I only have 2 pen drives connected. The other 2 USB ports are being used to a wireless receptor and a ...
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0answers
26 views

CP2102 usb to serial error

I'm trying to flash the nodemcu fw for the esp8266 using a usb to serial adapter, it come mounted on /dev/ttyUSB0 but it can't communicate with the module. All the connection are ok, and I've also ...
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0answers
14 views

Superuser can't `lstat` a directory but ordinary user can, what gives? [duplicate]

This really looks like a bug, and I'd like to dig in and find it, but I'm not sure where to start. First of all, I'm running Linux Mint, with a 3.13.0-24 x86_64 kernel. When I plug my Android tablet ...
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1answer
47 views

detect which port a usb stick is connected to

Due to hardware layout issues, USB port 1 on an embedded device is experiencing grave difficulties. Therefore, I would like users to use USB port 2 instead. Is there anyway to check which port an ...
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0answers
22 views

Can't access multiple USB channels

In OpenBSD I have a 3G minipcie (USB) modem, that has multiple non multiplexed USB channels. dmesg output: umsm0 at uhub4 port 1 configuration 1 interface 0 "Sierra Wireless, Incorporated AirCard" ...
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0answers
27 views

tar causes USB disconnects & reconnects

I'm experiencing a very weird behavior on a device running Linux 2.6.24.6. The device has an SD-Card and USB-ports. If I plug a USB Stick/HDD into a USB port and run the following: tar -cf test.tar ...
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13 views

Connecting MiFi via USB and usb_modeswitch

A bit of background: I have a E586 MiFi. (You can insert a SIM card and connect to it either via wireless or via USB.) My SIM card is a German Vodafone Ultracard, i.e. it is assigned to the same ...
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0answers
21 views

USB keyboard is disconecting automatically (without being unplugged)

In my log, I see following message: kernel: usb 1-1.6: USB disconnect, device number 5 acpid: input device has been disconnected, fd 7 acpid: input device has been disconnected, fd 8 I have not ...
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0answers
14 views

usb drive not working on c710-2487

I am trying to figure out why my c710-2487 chromebook won't recognize the USB stick with Ctrlu. I'm trying to boot bodhi from the USB. I have followed all of the instructions but it still seems like ...
4
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1answer
31 views

How to restrict/cut power output to a USB client?

...or, how not to charge my phone when I'm using it as a GSM modem in USB tether mode? I can use it as WiFi tether modem, but it wastes battery both of the netbook it supplies connectivity to, and on ...
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0answers
40 views

How to make MTP work

I'm experiencing many problems trying to properly connect and access the memory of my phone from my Linux system. I'm running openSUSE 13.1, with KDE, and my phone is a Samsung Galaxy S3 Neo equipped ...
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0answers
22 views

Initialize USB keyboard attached while suspended

I have a laptop that I sometimes want to use with separate peripherals; external monitor, external keyboard and external mouse. When in this mode, I want to keep the laptop closed and tucked away (as ...
0
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1answer
62 views

unbootable usb stick “Non-system disk or disk error”

All, I have a USB stick that used to boot fine. I thought I'd reuse it. Reformatted it, copied some files over, and now it won't boot. I've used "lilo -M /dev/sdc mbr" with no luck. Note that the ...
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1answer
39 views

Gnome, nautilus copy files to USB stops at 100% or near

I had similar issues before but i don't remember how i solved it. When i try to copy something to USB stick, with FAT, it stops near the end, sometimes at 100%. And of course, when i transfer the ...
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0answers
56 views

Mount android device 4.0.4 on linux

I am trying to mount a Samsung Galaxy S2 as a mass storage device onto an uptodate Arch Linux setup. On the Android phone I have done the following Settings -> More -> USB Utilities -> USB mass ...
2
votes
1answer
72 views

connecting linux device to a tablet via usb

I can connect my Linux device (an embedded device) to a tablet in the following way: Use a micro USB to Ethernet cable converter use a USB to Ethernet on my Linux device. connect the two device to ...
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1answer
39 views

Why arent the USB ports working on my install of centOS 5.10?

I have installed centOS 5.10 on a recently purchased desktop computer. The brand is SION, it is a clone. Motherboard: GIGABYTE J1800 (2.41 GHz) When I boot up the machine, this error keeps coming ...
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0answers
82 views

USB 3.0 works always, USB 2.0 works sometimes

I have little problem with my two ports USB 2.0. They don't work properly. If something (like mouse or keyboard) is connected on boot it's working but when I re-plug this device he often don't want to ...
0
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1answer
108 views

installing kali linux on live usb

I would like to divide a USB into three partitions. The first in FAT32 to use for data, photos, etc. compatible with windows, linux and mac osx. The second contains the Live Usb of Kali to boot ...
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2answers
67 views

hidapi ./configure error — missing libudev

I am trying to install hidapi on Debian. I already have libudev-dev and libusb-1.0-0-dev installed, but when I run ./configure in hidapi-master, it says that I do not have libudev, to install it and ...
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2answers
76 views

Use a directory to simulate a USB storage device? Or any other way to simulate a USB storage device?

When it comes to CD's you have virtual CD software in which you load an .iso and it works like a CD-Rom. But when it comes to USB is there something similar? Is it possible to use a directory to ...
0
votes
1answer
261 views

How to burn debian iso to usb

I downloaded the debian amd 64-bit iso file (apx 650 mb) on a macbook w/retina (i.e. no cd drive) running OS X. I'm trying to dual boot and have already gotten rEFInd working. Set up partition for ...
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0answers
58 views

Installing Kali Alongside Windows 8.1 Error

I tried to install Kali but it would not boot, however Ubuntu booted successfully, it's just Kali that won't boot. I make it to the menu where I select what I wish to do like "Live, Install etc" but ...
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0answers
89 views

FTDI USB Serial Driver Buffer Sizes for Optimizing XBee Radio Throughput

I am attempting to optimize Digi XBee Series 2 Radio throughput. I have 2 XBee radios connected to my Ubuntu machine through USB ports with 2 USB->Serial FTDI cables that show up as /dev/ttyUSB0 and ...
0
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2answers
29 views

How do I find out if something is using the serial port?

I want to program a microcontroller under Debian Wheezy, but can't get it to work so far. I asked on Electrical Engineering and got the advice to check if something is already occupying the serial ...
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0answers
28 views

USB HID works well in Bios and Grub, but doesnt work in Linux

I have a combined USB device with a touchscreen and a keypad. When I plug it into my Linux Laptop the keypad and the touchscreen get both recognized at boot level, I can see both status LEDs turn on ...
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1answer
78 views

Mount USB flash drive to /media/<label>

I did a minimal install of Debian using a USB thumb drive (instead of a DVD) and rebooted my box. At the console, tty1, I logged in to my user account. I re-plugged in my USB thumb drive that ...
2
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2answers
164 views

bluetooth mouse disconnects

I'm using Debian Jessie (testing). I have a bluetooth mouse (Microsoft Sculpt Comfort) and I can pair it and use it ok, but after some time of inactivity (around 10 minutes) it stops working, I have ...
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0answers
67 views

Raspbian: USB storage device name changing after USB device power cycle

I'm running Raspbian 7.4 on a Raspberry PI that has two USB storage devices connected to it. This Raspberry PI will remain running during a power failure because it has console cable connected to it ...
0
votes
1answer
130 views

How to boot kali from native usb

Last night I made a kali linux usb. Now this isn't the live usb I literally installed kali on the drive. I did this from my desktop which meant naturally I had to install the grub for my boot loader. ...
2
votes
1answer
91 views

cannot mount usb drive [closed]

This is my first day on linux and I can't figure out how to mount a usb drive. I plugged it and used fdisk -l to locate it. However when I type mount /dev/sda1 it says that sda1 does not exist. ...
0
votes
1answer
19 views

Whenever I try to boot a Linux Distro from a USB it goes to an eternal black screen

I've tried countless of USB booters, such as Universal Usb, Rufus, Unetbootin. They seem to work fine as I can boot to the point to where boots to the options menu, where it says you want to install ...
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0answers
66 views

Debian install no CD-Rom found on Thinkpad X220

im currenty having the problem that the Debian installer wont detect my USB I have a Thinkpad X220 UEFI BIOS version somewhere around 2011 I will explain what I did here: I installed Windows 7 I ...
3
votes
1answer
34 views

USB-Insert Authentication for Linux

On Windows, when I insert a USB, I use USB Security. So I'd get "To allow USB access, enter a password." So I'd have to enter a password to be able to even view USB contents or run it. Is there such ...
0
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0answers
34 views

Trying to understand the wacom tablet plugging in usb causes kernel panic

First, I realise that askubuntu exists, but a kernel panic is probably more GNU/Linux (kernel and low-level system programs) than distro specific. So I already have a solution to mitigate the kernel ...
1
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0answers
31 views

USB bus number changes on reboot

I have a fully updated Archlinux installation and I use udev to set specific permissions on the device node based on USB bus and port numbers so that I can redirect the ports (and not devices based on ...
0
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0answers
108 views

Jabra BIZ 2400 USB HeadSet doesn't output sound

I'm trying to get my Jabra BIZ 2400 USB HeadSet working on my Debian Jessie install, but I get nothing from the headphones. I've installed Audacity to test things and it will record audio, but then ...
2
votes
0answers
90 views

USB Mouse Freezing in Debian / KDE // Keyboard OK

Having problems with seemingly random freezes of my Logitech Wireless Mouse in Debian (KDE). With regards to a number of articles out there, I don't have powertop, mouseemu or laptop-mode-tools ...
0
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0answers
56 views

Setting up ZTE E137 modem in Opensuse 13.2

how can i set up a ZTE E137 modem in my opensuse 13.2 installed in my workstation/pc. i have used a usb stick to install modem manager into opensuse 13.2 but logs for modem-manager read it cannot ...
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0answers
150 views

usbfs did not claim interface before use

Using Sunnybeamtool to read out sunnybeam over Rasperry Pi USB port. I get lot of errors in dmesg which doesn't affect the working (apparently) program is written in C. Messages: [30563.867756] usb ...
1
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1answer
74 views

Grub Installed On Hard Drive after ElementaryOS Install on USB?

This is my situation: I put the ElementaryOS iso on a 16gb USB I installed ElementaryOS on another 32gb USB via the installation process When the 32gb USB is not in, the machine goes to grub rescue. ...
0
votes
1answer
48 views

Custom Kernel to Disable SATA and USB Devices

I am setting up diskless clients that will run on an internal network. I have disabled SATA and USB ports using a BIOS locked with a password, but this is easy to get around by using the jumper to ...