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

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583 views

WD 'elements' disk spins down, disappears

I have a 1TB Western Digital Elements USB drive connected to a sheeva plug with Debian installed. I use autofs for auto mounting USB drives. Here are the options I currently use. usb1 ...
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0answers
34 views

disable a usb port in linux

I've searched a lot for an answer to this, but the closest I can get to finding a solution is this: http://ask.metafilter.com/219676/How-can-I-tell-linux-to-ignore-one-USB-port but it doesn't work for ...
4
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0answers
505 views

Connection problem with usb3 external storage on linux (UAS driver problem)

On Ubuntu 15.10, when i want to format into NTFS file format an external 4TO disk connected by USB3 (on a Starteck USB/ESata HDD dock), i have a lot of I/O Error, and format fail... I try GParted v ...
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0answers
214 views

automatic disconnection of RAID array

A RAID array connected to my system (Debian 7) via USB frequently disconnects itself for no apparent reason. Upon initial connection to the system, the device is detected, and the array can be ...
4
votes
1answer
705 views

Alsa not detecting USB microphone on system boot

I have a USB microphone that works fine, up until I reboot my system. After that, it doesn't work at all until I unplug it and replug it. Based on my (limited) understanding of the components ...
4
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0answers
3k views

How do I find out the device node corresponding to my device in SuSE 8?

I'm forced to work with a bunch of point-of-sale systems running SuSE 8. They are my client's computers. We are stuck dealing with these old systems until they get to upgrade their whole fleet to SLE ...
4
votes
1answer
402 views

PS/2 to USB port for keyboard gives “unable to enumerate USB device on port 5”

I got my hands on a Logitech Ultra X (Y-SX49) keyboard, with US key marks. The US key placement is much better than my Swedish native, at least for programmers, because there are much fewer shortcuts ...
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0answers
2k views

Make laptop to wake up by keyboard and mouse

The only way I can wake up my laptop (HP Elitebook 8460p) from suspend is by pressing the power button. Neither the built-in keyboard/mouse nor the external ones (connected via USB) wake the laptop ...
4
votes
3answers
4k 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 ...
3
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2answers
5k views

FreeBSD in USB Flash Drive

I like to use live FreeBSD in my USB flash drive. How can i do it ? Please give clear way to do it.
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5answers
1k views

Using a differencing, aka overlay, aka union, file-system with commit capability

I work in two PCs and I sync all my files from my primary PC to a USB flash memory. In my second PC, I mount the USB flash memory to the same path to work on my files as I were on my primary PC. Now ...
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votes
2answers
553 views

Why is lsusb taking so long?

I'm running lsusb several times, but it's taking a long time to return. Is there a reason why it won't finish or that it runs slowly? I've tried killing their PIDs but that doesn't work. So I close ...
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votes
2answers
2k views

How to mount a filesystem from a given USB bus:device

Recently I bought a new smartphone (with Android). When I connect it to my laptop, the (gui)file manager (PCManFM) recognize it and show me the filesystem at route gphoto2://[usb:001,003]. But I can't ...
3
votes
1answer
139 views

Grub rescue if Ubuntu USB not plugged in?

I have my Ubuntu installed on a USB drive, and to log into Windows I need to have it plugged while booting, or I get the Grub rescue prompt. When the USB drive is plugged in, I get the Grub menu from ...
3
votes
4answers
6k views

Auto mount USB devices on debian?

This isn't a big deal i was just curious so if anyone happens to know why then great. I'm not sure if usbmount is the tool as which usbmount doesn't show anything but on my debian system (no ...
3
votes
2answers
493 views

How to switch HP printer from CDROM mode to Printer/Scanner mode

I have an HP multifunction printer/scanner M1123 MFP. I installed the latest hplip that should support it and also hp-plugin. However, when I plug the device in, I only see a CDROM detected in dmesg. ...
3
votes
2answers
33 views

How to use same interfaces settings for all wlan devices

I am working with a pcengines apu2c4 board with debian 8.4 installed.I am quite new to Linux. We use edimax ew-7811un usb wifi adapters. Obviously when you insert a wifi dongle new to the machine it ...
3
votes
2answers
279 views

Data loss when loop-mounting a file on removable USB storage

If I plug in a USB and modify files and unplug it I don't lose data. However if I use mount on a file on the USB I WILL lose data. Whats with that? Is there anything I can do to prevent loss of data? ...
3
votes
2answers
930 views

Mount a device as another user

Is there a command (on Debian Wheezy) that a testuser that belongs only to the group testuser can run (maybe he needs to be listed in sudoers first) in order to mount a USB stick as if he belonged to ...
3
votes
1answer
5k views

Mounting USB drive on 3G dongle

I've got an Huawei HiLink E303 USB G3-internet dongle that I'd like to use to connect to the internet. I'm using Arch Linux. According to this page, the Linux drivers are actually on the device and ...
3
votes
2answers
10k views

Booting Ubuntu from usb on a Mac

I have a Macbook pro (late 2009) running OSX 10.6.8. I want to partition a flash drive and install my Ubuntu iso image onto it. Then I want to boot up from it by (restarting my computer and) holding ...
3
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1answer
4k views

Raspberry Pi Wireless USB stick

I recently acquired a Raspberry Pi, and have installed Debian Squeeze on it, and after doing a small bit of research (I'm not too proficient with Linux) I found and ordered a USB wireless dongle ...
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votes
2answers
2k views

How to get vodafone mobile connect (or equivalent) working reliably on debian squeeze

I got a Vodafone K3760 at some point in Debian/Lenny's lifetime, for use with a Lenovo S10e. I installed (from the Vodafone BetaVine site) usb-modeswitch 0.97 and vodafone-mobile-connect (VMC) ...
3
votes
1answer
389 views

What is the proper way of mounting external devices on NixOS

I have a usb stick and NTFS hard drive partition that I'd want to use in nixos. On some other distribution I'd mount it using ntfs-3g in /mnt. But on nixos the directory doesn't exist, I suppose nixos ...
3
votes
2answers
296 views

How to read lsusb?

What is the vendor id and what is the product id in the output of lsusb? ➜ lsusb Bus 001 Device 018: ID 0781:5576 SanDisk Corp. Bus 001 Device 011: ID 0e0f:000b VMware, Inc. Bus 001 Device 001: ID ...
3
votes
1answer
291 views

How to disable USB devices based on their vendor ID on GNU/Linux?

In that question someone wanted a blacklist for all USB devices, and then only allow specific devices. In this question, we want to accept all USB devices, but prevent the driver (e.g. cdc_acm) from ...
3
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2answers
575 views

How does an emulated keyboard work?

I have read that some USB devices emulate a keyboard and the information these devices send will be as if the information was typed on a keyboard. For example: a magnetic card reader can use an ...
3
votes
1answer
1k views

Qemu 2.0 Windows guest - mouse stops working (vnc) when using usb-passthrough

I have installed Qemu 2.0 on an Ubuntu Server 14.04 LTS computer. I use Qemu to run multiple virtual machines. One of them is using Windows 8.1 Pro (x64) and is used for back-ups. The guest runs fine ...
3
votes
1answer
7k views

Reading from USB serial port under Cygwin

I am actually using Cygwin, but it is my understanding that it responds to Unix commands so hopefully I am in the correct place. I have an Arduino hooked up via USB to my LapTop for data reading. I ...
3
votes
1answer
835 views

Is it necessary to enable CONFIG_USB_OHCI_HCD , when there's only USB 2.0 ports

Is it necessary to enable CONFIG_USB_OHCI_HCD on a system that has USB 2.0 port only ? I'm not sure those devices present , e.g bluetooth , camera use that driver ? Bus 001 Device 001: ID 1d6b:0002 ...
3
votes
1answer
4k views

How can I uniquely identify which device is on USB `hub 6-0:1.0: port 2`?

How can I uniquely identify which device is on USB hub 6-0:1.0: port 2? I receive messages in my dmesg every now and then and I want the system to tell me which device is connected to that port. ...
3
votes
2answers
783 views

Launching Gentoo from external hard drive

I have an external hard drive (Transcend TS500GSJ25M - not sure M1, M2 or M3, but guess it's M1) and I'd like to install Gentoo on it. It's pretty easy, using genkernel, though it compile a lot of ...
3
votes
2answers
6k views

Is it possible to make a Microsoft LifeCam HD-5000 work under linux?

I am trying to set up a virtual machine which will act as a home security system. (If you've chatted with me in The Tavern, you may know why...) I purchased two USB webcams (Microsoft LifeCam HD-5000) ...
3
votes
2answers
8k views

How to use iphone internet tethering via USB with Ubuntu 10.04

What are the steps to use iPhone 3G internet tethering via USB on Ubuntu 10.04? Is there software I need to install on Ubuntu for this? The tethering works fine on Windows.
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2answers
3k views

how to create multiboot usb w/ persistence for multiple OS

I'm installing multiple operating systems on a usb drive I recently purchased for this purpose and was wondering how to create a usb drive with multiple persistent OS's that will be linux based and ...
3
votes
1answer
5k 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. ...
3
votes
1answer
2k views

How to suspend an USB device?

I want to suspend a connected USB device at my pc manually. I tried the following instructions in Debian (Kernel 3.2.0). uname output: Linux debian7-dev-gnome 3.2.0-4-686-pae #1 SMP Debian ...
3
votes
1answer
1k views

Creating/Removing a symbolic link when a USB device connects/disconnects

I'm working with an Arduino board and Matlab under Linux. Matlab, unfortunately, doesn't recognize the Arduino board when is connected unless I create a symbolic link to the Arduino board in /dev by: ...
3
votes
2answers
10k views

Mount exFAT file system as user without specifying /dev/sdX1 in /etc/fstab

I've "solved" the following problem, but not in a desirable way. First, mounting exFAT file systems in Linux was truly as simple as this site says. The catch is, "as long as you are root." A user ...
3
votes
3answers
407 views

USB device to be detected at the “same” /dev point always?

In Linux (actually I'm with CentOS v6.5), whenever I plug in my USB Terminal/Character Device (some kind of USB Adapter) for the first time (after booted), it is detected at: /dev/ttyUSB0 But ...
3
votes
1answer
2k views

usb0 -> what exactly is it for?

So far, I found out that on GNU/Linux /media/usb0 seems to be a mount point for Ethernet over USB. Nice. Question: Where is defined, what usb0 is exactly for? I distilled the above mentioned ...
3
votes
1answer
1k 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. ...
3
votes
1answer
2k views

No room on ep ring?

I just switched to tty1, and I'm getting all kinds of output. It all looks like this: [timestamp] xhci_hcd 0000:00:14.0: ERROR no room on ep ring It's happening over 100 times per second, every 5 ...
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votes
1answer
741 views

Getting keyboard to work in debian 6.0 in order to unlock root partition

I just installed Debian 6.0, encrypted / and now I'm trying to boot. When GRUB comes up, I select Debian, it loads the initrd and asks for the root password, however I can't enter anything, because ...
3
votes
1answer
6k views

Understanding udev rules and permissions in libusb

I had a problem with my scanner. Xsane worked only as root. Using it as normal user it didn't find any devices. Adding the user to the groups saned or scanner didn't help. Finally I solved the ...
3
votes
1answer
4k views

USB 3G Modem for embedded Linux?

I am fairly new to Linux world, I have to develop an application on embedded Linux which sends data over internet. I have to choose a USB 3G modem with a SIM card holder. I would appreciate if anyone ...
3
votes
1answer
1k views

Bootable USB appearing as HDD not Removable Device

I have a unique problem with an older Toshiba satellite laptop that happens to be a LegacyFree laptop meaning you can't access the bios via the normal F2, Del, Esc, etc. I can only select a boot ...
3
votes
1answer
318 views

Linux kernel support for USB gamepads?

I've got an old Logitech USB gamepad that worked well under both Windows and Mac OS X. That is, the gamepad was totally "plug and play" for games run by a Super Nintendo emulator (SNES9X). Does Linux ...
3
votes
1answer
823 views

Multiple USB wireless devices?

I have a broadcom wireless card in my laptop and as far as I know, it acts as an USB device. I also have one USB stick wireless device (TL-WN422G - uses ath9k_htc driver) which I want to use at the ...
3
votes
1answer
75 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 ...