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

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3
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3answers
236 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 ...
0
votes
1answer
710 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
votes
1answer
871 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 ...
5
votes
4answers
4k views

Prevent claiming of novelty usb device by usbhid so I can control it with libusb?

I have a USB rocket launcher that I wish to experiment with through libusb. However, libusb cannot claim the interface; presumably because the output of usb-devices lists 'usbhid' as the driver for ...
0
votes
0answers
20 views

One single /dev/ttyACM for multiple composite devices (USB-Serial) connected to a hub

When I connect multiple composite devices to a USB hub, and then connect the hub to my laptop(running Fedora 21), I can see only one /dev/ttyACM* file. When I connect these devices directly into ...
1
vote
1answer
26 views

USB not working : USB Ports Hijacked/Reserved Permanently by VirtualBox

This scary incident happened today morning. I started a virtual machine inside my Linux Mint host and shared my USB Wireless device with the machine. The virtual machine's image resided in an ...
0
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0answers
23 views

USB controller does not work correctly under Fedora 21

I've recently installed Fedora 21 on my workplace machine but i'm having a hard time getting one of the USB 2 controllers to work correctly. The problem is that any devices plugged in (i have tried ...
3
votes
0answers
15 views

What can cause a usb port speed change?

I have an instrument connected via usb to a OpenSuse (11.1 32) computer. Following the vendor instructions, I've added one rule to udev: ATTR{idVendor}=="0e0d", ATTR{idProduct}=="0003", MODE="0666" ...
1
vote
1answer
42 views

4TB USB drive consistence totally freezes Xubuntu 15.04

I've always found USB very flaky. I've experienced lots of random freezes (needing hard resets) when for instance I accidentally unplug a drive before unmounting. Drives would only sometimes ...
1
vote
1answer
45 views

USB flash drive is read-only under Gnome on Debian

I have Debian on my PC. I insert a USB flash and it open just fine in my Gnome environment. But when I try to copy something in it I get: Error during copy.The destination is only for reading. When ...
1
vote
1answer
3k views

minicom showing offline

I am trying to use minicom in Ubuntu. To do this I first connect my USB to DB9 converter, then I type this command on terminal dmesg | grep tty to check if my USB to DB9 converter is connected ...
0
votes
0answers
26 views

Linux Driver for USB “reverse” mass storage device

I'm developing a USB device that I want to read and write in virtual filesystems that are in my computer. Basically the device needs to be able to read, write and get the virtual filesystem size. Some ...
6
votes
1answer
1k views

“usb 3-2: can't set config #1, error -110” - USB keyboard works in Windows 8 laptop but on PC only until Linux boots

I tried 2 new USB keyboards that work until Linux starts booting. When booting I saw: [ 8.365211] usb 3-2: New USB device found, idVendor=1a2c, idProduct=0b23 [ 8.404863] usb 3-2: New USB ...
2
votes
3answers
4k views

Endless data loop from dev/ttyUSB while sending AT commands

I have problem sending AT commands to my USB modem. At first I tried php-serial class, but when i was reading data, I got endless loop with strange data. Then I tried to debug problem and opened putty ...
1
vote
1answer
581 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 ...
1
vote
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 ...
1
vote
2answers
805 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 ...
2
votes
1answer
52 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 ...
2
votes
0answers
48 views

USB to UART converter is lagging

I have a USB to UART converter with CH341A chip on it. This device can be used as a USB to UART converter, as a 24/25 chip programmer and as a USB to PARALLEL converter. The problem is with the UART ...
1
vote
1answer
28 views

How to associate physical usb port with usb device number

I'm using Ubuntu 12.04. I need to send a command to a device that I have connected on a port of my PC. I can send the command by finding out what the Bus and Device number are. For example, lsusb ...
3
votes
1answer
490 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. ...
0
votes
0answers
18 views

WIFI over SDIO over USB - Do I have to reflect that in the device tree?

I am currently extending an embedded hardware platform which runs a linux kernel 3.16. I want to connect an external SDIO controller to the USB bus, and then run a WIFI module using that SDIO ...
5
votes
1answer
4k views

Unable to boot Chromium OS from USB drive

I have tried both my own builds of Chromium OS and Hexxeh's daily Vanilla builds, and neither work. I copy them over to my flash drive, but when I try to boot from it, nothing happens except my ...
2
votes
2answers
12k 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 ...
10
votes
6answers
24k views

Create a Bootable (UEFI GRUB) USB for Ubuntu & Windows 7 Install

I want to create a Bootable EFI USB to install Ubuntu & Windows 7 (maybe with utilities like PartedMagic). I did that using MultiSystem previously. However, I am using GPT and Windows install ...
0
votes
0answers
21 views

Redirecting USB scanner to windows machine

We have a Linux thin client that connects to the Windows terminal server via RDP. We need to redirect USB scanner that plugged to the Linux machine to the Windows terminal server. What is most ...
1
vote
1answer
36 views

Low mouse and keyboard framerate in Fedora 21

I have recently added a Fedora 21 partition on my workplace machine, however i'm experiencing the curious issue that my mouse and keyboard "framerates" are incredibly slow. The mouse cursor is ...
0
votes
1answer
627 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 ...
3
votes
2answers
471 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 ...
1
vote
0answers
29 views

Simple automount USB devices with fstab: is it normal behaviour?

I notice that adding this in /etc/fstab: /dev/sdb1 /media vfat nofail 0 0 will automount any SD card of my USB SD reader, and even auto-remount if I remove the card, and insert a new ...
1
vote
1answer
54 views

reading /dev/ttyUSB0

I'm trying to see the output of an accelerometer with Ubuntu (15.04), kernel 3.19. The UART driver is cp210x.ko, and the chip of the accelerometer is MPU6050w. So, when I plug the device, I have this: ...
3
votes
2answers
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 ...
0
votes
0answers
12 views

USB drives un-mounts and remounts to different mount point

I use PLEX and Sickrage to manage and play video content. My video content is on a USB drive, which is mounted to /media/series. For whatever reason, at some stage the USB drive would be un-mounted ...
1
vote
0answers
27 views

USB MIDI keyboard (Oxygen 61) now not appearing in QJackCtl

I've had a USB Oxygen61 MIDI keyboard for awhile now, and it has worked fine in the past (maybe a month ago, last I tried). But now when I plug it in, it no longer shows up in aconnect -l, and I ...
4
votes
0answers
28 views

How to detect if USB device is bootable in udev?

I'm trying to write a udev rule to not mount USB devices plugged into my system if they're bootable, but I don't know how to specify in udev if a device is bootable in a rule. Is that possible? If so, ...
0
votes
0answers
4 views

unable to initialize libusb -99 error [op_init] could not find usbfs [migrated]

Currently working on a driver for USB thermal printer (CUSTOM VKP80II) that should print reports (jasper reports).The driver should work under linux mint 17 and should be written in the Java.I install ...
0
votes
2answers
2k 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
vote
2answers
5k 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 ...
1
vote
2answers
61 views

Creating a bootable OpenBSD Flashdrive

I've attempted to do dd if=install57.iso of=/dev/sdb. sdb is my flash drive. I've also tried with the install57.fs. When I try to boot from USB it says "Missing Operating System" Could anyone help? ...
3
votes
1answer
526 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 ...
1
vote
1answer
649 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 ...
5
votes
1answer
3k views

Getting my Smart Card reader to work on Linux

I got a Smart Card reader, that I ripped from a Laptop the other day. It is an internal Smart Card reader, though it uses USB, so making a cable for it, was no problem. It seems it's recognized by ...
1
vote
1answer
24 views

How do I understand if an USB Ethernet adapter is compatible with a certain kernel version to use it to load kernel/filesystem?

I'm using an old kernel, 2.6.32, and I would like to boot the kernel over TFTP and mount the filesystem over NFS. Mounting the kernel over TFTP is a plus, but mounting the filesystem over NFS is a ...
3
votes
2answers
130 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 ...
1
vote
3answers
74 views

My SD card has a partition but Linux doesn't create a device entry for the partition

OK, I don't know what's going on here, at first I thought it was a problem I remember having some time ago where I couldn't mount a vfat partition because it had some flag set that it had not been ...
1
vote
0answers
56 views

USB bar code scanner not working on Raspbian

My USB bar code scanner (SYMBOL LS2208) is recognized as a HID. hid-generic 0003:05E0:0600.000F: hiddev0,hidraw0: USB HID v1.10 Device [\xffffffef\xffffffbe\xffffffa9\xffffffbe\xffffffa9Symbol ...
2
votes
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 ...
-2
votes
1answer
41 views

How to Install Fedora (not create bootable USB)

I have searched Google for how to download Fedora, and all I find is how to create bootable USB. Once I load Fedora from bootable USB how do I permanently install Fedora from USB onto my laptop?
0
votes
2answers
51 views

boot from usb flash drive

I have a Sony Vaio SV-E14A2M1E with Win 8.1; and I just created a bootable USB with Linux mint 17.1, but I can't boot from it. I've done a bit of research, but I'm not sure with what I've found.
0
votes
0answers
89 views

usbfs: process 25093 (pool) did not claim interface 0 before use

I recently got a new phone, a Moto G 2nd Gen. I am running Debian Jessie on kernel 3.16.0-4-amd64 libmtp 1.1.8-1 libusb-1.0-0 2:0.1.12-1 gvfs 1.22.2-1 When I plug it in, it appears to be fine. ...