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

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3
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1answer
452 views

Turn system on by USB keyboard?

To hibernate my Debian Wheezy system, I run the following command: sudo sh -c 'echo disk > /sys/power/state' To wake up the system, I can press any key on my USB keyboard. My understanding of ...
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0answers
23 views

New laptop - hub over-current condition

I bought a new laptop Lenovo B50-70 and I abe installed Linux Mint. In the syslog is long output og messages: .... hub 1-1:1.0: over-current condition on port 3 hub 2-0:1.0: over-current ...
0
votes
1answer
19 views

Boot from virtual usb drive in qemu-kvm

I want to create multi-bootable USB with GRUB2. But I don't want to use physical USB stick to experiment with. How can I create virtual USB to play with it as it is real device using qemu? I want to ...
1
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1answer
626 views

Incorrect step with grub while installing onto a USB stick?

I tried installing debian on a USB stick. I believed I made a mistake with the grub boot up part. I want to leave my harddrives alone and with my bios choose to boot up from a stick. Do I need grub if ...
0
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2answers
1k views

How can I add an external CD/DVD writer ?

I want to add an external CD/DVD writer to my Ubuntu 14.04 system (System 76 Ratel): the writers in my local electronics store have USB interfaces, and the drives are advertised as windows and mac ...
1
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1answer
8k views

command to determine ports of a device (like /dev/ttyUSB0)

I have a question regarding the ports in Linux. If I connect my device via USB and want to check its port I cant do it using the command lsusb, which only specifies bus number and device number on ...
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2answers
1k views

BackTrack USB Wireless adapter drivers issue

I purchased USB Wireless adapter which runs smoothly on Windows and Ubuntu, but in BackTrack it's showing me a Bad password issue. From my reading I guess it's driver issue which BackTrack Kernel ...
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0answers
11 views

Does udev only check for matches on the first remove event?

ACTION=="add|remove",SUBSYSTEM=="tty", ATTRS{idVendor}=="XXXX", ATTRS{idProduct}=="XXXX",SYMLINK+="device", RUN+="/home/alvin/udev/test.sh" This is the command that works on add ...
0
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1answer
7 views

CONFIG_USB_DYNAMIC_MINORS Macro enabled?

I am trying to install a USB device on my Fedora 21 machine. The manual for the USB device mentions that it does not support kernels which are configured to automatically assign minor numbers to USB ...
3
votes
1answer
439 views

How do I create a USB networking interface for passing internet to my Android phone?

I am working on passing through the internet from my computer to my phone (running Android) over USB. I'm not sure how to achieve this, but I know I will need a usb network interface, such as usb0. ...
1
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1answer
56 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
31 views

USB Logitech gaming controller doesn't get recognized

I have an offline Mint desktop that has not been connected to the Internet for some time; around the order of a year. So it is not updating for sure. Just got two USB Logitech gaming controllers, they ...
1
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1answer
1k views

How to detect a working ttyUSB for my usb modem

I working with OpenWRT and need setup USB 3G Modem. When i connect USB modem i see in logs that system create four ttyUSB. Why four? Tue Jul 29 07:45:23 2014 kern.info kernel: [ 580.220000] ...
2
votes
1answer
30 views

Where can I find a list of USB error codes?

Every time I boot Debian, the boot log shows a bunch of xhci_hcd problems, and messages like usb 3-13: hub failed to enable device, error -22 usb 3-13: device descriptor read/8, error -61 I'm ...
0
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0answers
11 views

Make bootable USB drive on Mac

I've tried to make a bootable USB drive — using Syslinux & Buildroot — on my Macbook Air. When I boot up I get something like this error. "Non-system disk, press any key to restart" Does that ...
3
votes
1answer
492 views

Grub and usb serial support

How to access the grub menu using a usb serial converter? I know it's possible to have grub menu in serial console, putting these lines in grub.conf: serial --unit=0 --speed=9600 --word=8 ...
1
vote
1answer
20 views

Issues with saving Linux and Windows folders on the same USB?

I'm wondering if folders work differently when set up by Linux than they do when set up by Windows. Here's what I want to do: Go into Linux Mint, plug in a brand new USB stick, and create a folder ...
2
votes
1answer
559 views

usbip: problem getting device attributes: No such file or directory

I try to use an ftdi rs232/usb adapter over ethernet. It's connected to my raspberry pi. pi@raspberrypi ~ $ usbip list -l Local USB devices ================= - busid 1-1 (0424:9512) 1-1:1.0 ...
2
votes
1answer
82 views

How to have X server on another graphics card which keeps refreshing when I'm working on my main display?

For presentations I want to use the external USB connected video adapter connected to the projector (especially as the standard VGA output in my laptop got damaged). My idea was to start a dedicated ...
0
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0answers
17 views

USB dongle undetected on Linux Mint

I'm facing a peculiar problem on my Linux Mint laptop for the last week. I have a ZTE AC2726 USB dongle with service provider reliance (netconnect broadband+). The same dongle works well on my ...
0
votes
1answer
630 views

rs232 to usb not working

I also asked this question on AskUbuntu but there nobody comments on it I have a konig rs232 serial to usb adapter (no FTDI chip), but when I try to connect to a cisco switch/router (via Putty, ...
0
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1answer
852 views

Cannot access HDD files through Linux Mint Live USB

I have valuable info on my Ubuntu partition, but it crashed, and I tried to get to it through Live USB with Mint 14, but it says it's read only. Can I make it writable too? So I can put it on my ...
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2answers
3k views

how to disable USB devices based on vendor id in Linux environment?

I want to disable usb devices based on vendor id in Linux environment. I want to allow only specific USB devices, based on vendor id.
3
votes
1answer
2k views

Media changed: please insert the disk labeled 'Debian GNU/Linux

I installed Debian 7 using a USB flash drive "burned" from the first DVD ISO of the Debian installation CD/DVD. I did a very minimal install without Debian desktop environment, Print server and ...
0
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0answers
55 views

Testing if HL-340 works

I have Kubuntu 14.10 development workstation and recently I have bought a pair of QinHeng Electronics HL-340 USB-Serial adapter via eBay. HL-340 is USB<---->Serial adapter and it is recognized by ...
0
votes
1answer
577 views

ELAN Touchscreen on Ubuntu 14.04 and Debian 7.6

I recently purchased an ASUS Q550LF laptop with Windows 8.1 preinstalled, and subsequently installed Ubuntu 14.04 and Debian 7.6. I use Ubuntu for most tasks, but occasionally have reason to boot ...
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2answers
406 views

Make a computer act as a virtual USB device for other equipments

Some applications simulate a virtual USB or CD Rom drive as if a USB drive is attached to the computer. Is there any configuration or application that provides a virtual USB drive, not for the the ...
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votes
3answers
4k views

How to create a bootable Linux installation USB from an ISO in OS X?

I downloaded the ISO for Debian's net installation to a computer running OS X. I want to put the data from the ISO onto a USB, so that I can install Debian on another laptop (not an Apple laptop). ...
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1answer
26 views

What is the proper bash method of prompting the user for administrative password before backing up the usb data to the computer?

mate-terminal --window-with-profile=PROFILENAME="Hold the terminal open" -e "sudo rsync -azvu --log-file=/var/log/simplebackup.log --append-verify --exclude '.gvfs' /media/user/usb/ ...
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vote
1answer
531 views

Why do I not seem to have hidraw options on my system, and how can I fix my usb devices?

Starting today, I noticed a few problems with my system. USB devices, including the internal ones such as microphones, don't seem to be working at all. I first noticed when my keyboard and mouse ...
3
votes
1answer
450 views

USB keypad (HID) not responding in linux but in grub

An external USB keypad I'd like to use gets recognised as a USB HID device, but it is not functional when Linux is booted. It does work when plugged into a Windows desktop and it does work while in ...
2
votes
1answer
4k views

How do I get my wireless USB mouse working

My wireless USB mouse is not plugging and playing. This is my first time using linux (Ubuntu 12.04) and I'm trying to get a development environment going to learn to use the shell, Python, and other ...
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2answers
718 views

Smartphone used as USB memory stick is correctly read on XP VirtualBox machine but Linux Mint show only root folders

Smartphone used as USB memory stick is correctly read on XP VirtualBox machine but Linux Mint show only root folders The stick is recognized by Linux, but show first level folder only: Folders are ...
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3answers
5k views

How can I match a ttyUSBX device to a usb serial device

option driver correctly matched USB ID and loads driver for this device. For example # lsusb Bus 001 Device 002: ID 19d2:0031 ONDA Communication S.p.A. ZTE MF636 Bus 001 Device 003: ID 12d1:14ac ...
2
votes
1answer
1k views

Debian USB automount

Got my USB flash automount broken after reboot. Using Debian 6, GNOME 2 My NTFS hard disk is still mounting correctly. When i connect my Android smartphone (with SD and local drive) my messages log ...
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0answers
28 views

Handle mouse and keyboard usb device in udev

I'm trying to set up usbip on our thin clients to forward (almost all) USB devices to the server. What I don't want to forward are all input devices and all hub / virtual devices. So I want to ...
1
vote
1answer
587 views

Why isn't sda1 showing up in dev and how can I fix that?

I have an embedded Linux device and I was trying to copy some files to it. I plugged in a USB stick, the dmesg shows that it was recognized, but for some reason /dev/sda1 never showed up. I'm trying ...
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0answers
50 views

Why do I have to insert USB storage twice to mount it?

Often, I insert my USB storage into my computer and it will not mount. I can see the USB drive recognised in KDE's panel, but it will not be mounted. I can click on the "mount" button in the panel, ...
3
votes
1answer
62 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 ...
3
votes
2answers
454 views

Mounting USB camera on Ubuntu

I am quite new at Linux and I have to install this SwissRanger camera on Ubuntu. I am trying to follow their USB mounting instructions and I got stuck. From the instructions: Modify the usbdevfs ...
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2answers
2k views

Unable to connect INTEX 3.5G (aka 普创E003) Wireless USB modem in Ubuntu 12.04 LTS

Can anyone help me out on connecting INTEX 3.5G 7.2 Mbps (aka 普创E003) Wireless USB modem in Ubuntu? Initially it is recognized as a storage device and the modprobe cmd does not create any impact on ...
0
votes
1answer
27 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 ...
0
votes
2answers
50 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.
0
votes
1answer
42 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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vote
1answer
33 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 ...
12
votes
4answers
5k views

If I connect a physical device, how can I ever know which device file belongs to it?

Say I plug in several USB drives which don't get automatically mounted. How can I find out which device file belongs to which physical device, so I can mount it for example? I'm running Mac OS X but ...
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vote
2answers
4k views

D-Link DWM-156 HSPA USB Modem doesn't work with SIM card inserted

I have a D-Link DWM-156 HSPA modem, that I bought just a few days ago. The modem has drivers in its internal storage. There are Debian packages (.deb) for both i386 and amd64, so obviously I installed ...
6
votes
1answer
745 views

USB 2.0 device is not working in USB 3.0 ports

I have a Ubuntu 12.04 system. On that system I have one USB 3.0 port. In this port I am trying use my USB 2.0 device, but every time when I plug in that USB 2.0 device into the USB 3.0 port, the ...
0
votes
1answer
4k views

How to downgrade USB 3.0 to USB 2.0?

I have USB 2.0 device when I plugged this device into the USB 3.0 port of my system then system gets hanged, after researching many of the solutions says that you can downgrade USB 3.0 to USB 2.0. But ...
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votes
0answers
11 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: ...