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

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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 ...
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1answer
14 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: ...
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10 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 ...
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16 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 ...
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21 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, ...
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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 ...
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2answers
36 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? ...
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36 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 ...
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1answer
19 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 ...
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37 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 ...
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3answers
57 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 ...
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41 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. ...
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1answer
40 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?
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2answers
117 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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1answer
36 views

Embedded Linux USB Audio Issue

I have a Corewind WiFiG25 board based on the AT91SAMG25 400 MHz following Arm processor running Linux 3.6.9 built using Buildroot. I am attempting to play mp3 files using mpg123 connected to an ALSA ...
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17 views

Mouse stutter on Thinkpad OneLink Dock Pro

I am on a Lenovo Thinkpad Yoga (S1) running OpenSUSE Tumbleweed (kernel 3.19) and am trying to use my OneLink Pro docking station for said device. Unfortunately the performance of the mouse through ...
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12 views

how to differentiate between usb based dvd writer and usb pendrive in RHEL6? [duplicate]

i have connected usb based dvd writer and pendrive to system. Now i want to differentiate these two so that my requirement is to block pendrive and allowing usb based dvd writer.
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3answers
1k views

Is USB-to-USB data transfer between two Linux OSes possible?

I want to create a USB-to-USB data transfer system in Linux (preferably Ubuntu). For this I want to use no external hardware or switch (except this cable). It's going to be like mounting a USB drive ...
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27 views

Autoloading externally compiled module at hotplug event

I have a pretty outdated embedded linux driven system with v2.6.33.7 kernel, which came without USBNET and CDC_ETHER modules. I compiled those modules to be able to attach a certain USB-LAN stick, ...
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2answers
50 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.
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25 views

FreeBSD: Permanent nodes for usb devices

In FreeBSD, USB devices appear in /dev as (for example) /dev/ugen2.5, /dev/ugen2.6, etc... However, I noticed after a reboot sometimes these are pointing to different devices. Is there a way to lock ...
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0answers
88 views

Can I connect to Multiple Bluetooth devices using a Bluetooth dongle?

I am using a usb bluetooth adapter on my PI 2 , which communicates to an arduino using HC-06 Bluetooth module. This script runs to connect to that module: #! /usr/bin/python import serial from ...
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36 views

How to make OS to mount USB as user

In debian jessie KDE, when I plug USB stick and click it in dolphin (it mounted automatically), stick mounted as root, while I am using standard user account. So I need to get superuser to manipulate ...
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60 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 ...
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1answer
54 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 ...
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0answers
22 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
10 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 ...
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0answers
37 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 ...
2
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1answer
67 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 ...
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28 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 ...
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1answer
23 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 ...
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27 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 ...
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158 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 ...
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1answer
27 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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41 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 ...
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90 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, ...
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1answer
50 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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1answer
100 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
84 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
59 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
48 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
21 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
38 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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22 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 ...
1
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1answer
87 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 ...
0
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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
78 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
32 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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37 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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34 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 ...