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

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37 views

udev: Wrong symlink is made at boot time

I am trying to create a udev rule to give a static name to a ttyUSB (a FTDI USB serial cable). My rule is quite simple (the file is named 99-usb-serial.rules): KERNEL=="ttyUSB?", ...
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1answer
49 views

How to give a custom name to a serial device on connection?

I am working on ROS under Ubuntu 14.04 on an Odroid XU3 (ARM dev board). I connect two USB devices to my dev board which are recognized as ttyACM0 and ttyACM1 according to the time when they are ...
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1answer
61 views

My printer in /dev/usb/lp0 always disappear after few seconds, and can't print, how to fix it? (Ubuntu 14.04)

Please, help... I have a 'EPPOS Model EPT-58H' thermal printer. When I plugin via usb, it detected as /dev/usb/lp0 with ls -l /dev command. Then I run echo "sometext" > /dev/usb/lp0 in terminal to ...
3
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0answers
247 views

Multiple (combine) USB sound cards with Alsa + Jack + Pure Data

I'm a musician and I'm new to PI/Raspbian/Linux. I'm using a Raspberry PI 2 with Pure Data (PD) for a multichannel audio installation. I have one 5.1 USB soundcard (6 channels) but for my installation ...
1
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1answer
41 views

Is host-to-host file transfer possible using USB Type-C?

I'm doing a warranty replacement on my Chromebook Pixel 2, and want to transfer data from one laptop to another. The Pixel 2 has two USB type-C ports. I'm running Arch Linux on the old one. I'd like ...
0
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0answers
70 views

Struggling to boot linux with full disk encryption from USB

I would like to be able to boot linux (mint or ubuntu preferred) on my desktop from a fully encrypted USB stick. Apparently this is possible, however the solution has eluded me. Please forgive my ...
1
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0answers
88 views

Ubuntu Mint 17.2 ,USB Mouse and Keyboard sometimes only works in Safe Mode

Occasionally , when I restart the computer. The usb mouse and keyboard do not work by the time its ready to log in. They always work in safe mode, and the keyboard and mouse always works on the duel ...
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1answer
29 views

LCD USB communication

This is on Arch Linux. I connected it and using dmesg I got the output: [ 78.637285] usb 5-2: USB disconnect, device number 3 [ 78.953772] usb 5-2: new full-speed USB device number 4 using ...
1
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1answer
44 views

Error copying file in mounted usb

I'm formatting an USB pen drive. For this I run the following commands: First umount the device: sudo umount /run/media/myuser/folder_where_is_mounted (I'm runing manjaro and is in /run where ...
0
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0answers
105 views

Yumi + mint 17.3 = login screen

I want to create a mint usb installer. When I do, and I try to install, mint comes up with a login screen. Tried various combo's of names and passwords, nothing works. Nothing else to do but ...
2
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1answer
2k views

Qemu USB passthrough (windows guest)

I have a USB ADC/DAC and a HASP protected proprietary data acquisition system for it, both of which do not work in linux. I am trying to make it work in Windows virtual machine using qemu. Here are ...
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0answers
95 views

usb-device number changes over time

I am trying to use on my RP a camre usb device - Logitech, Inc. Webcam C270. When I connect it directly to the USB port of the RP, other USB devices stop working (such as WIFI device) I guess this is ...
2
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1answer
46 views

USB automount call another x-session

I have FreeBSD 10.2 installed with Openbox as wm. When I put flash drive in USB new instance of openbox starts automaticaly. I don't undestand why. /etc/rc.conf # Hostname hostname="dark" ...
0
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1answer
26 views

How often does the tcpdump save into the file

I've got an question, concerning the tcpdumd. Does it save the data directly in the File you can give it with -w, or does it save when it's stopped? So if it was writing on a usbstick, can I just ...
0
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0answers
97 views

My computer freezes after selecting an option in the gnu grub. What do I do?

My mom had a computer. She downloaded some music illegally, and now it doesn't work. I decided to try to install ubuntu on it (I made a bootable usb stick on another computer). The usb stick works ...
0
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1answer
82 views

Embedded linux hotplug changed mount point

I have a linux media player that was very common before android's age. It is a MIPS running Linux Venus 2.6.12.6 and has 2 sata, 2 usb and 1 sdcard port. Since the flash memory is very limited, I ...
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2answers
138 views

Setting up a WLAN usb stick

I'm trying to make the WLAN USB stick connect to a wireless network. There was an official Linux driver available for download (v4.0.2_9000.20130911, which supports my Linux kernel version) and I ...
0
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2answers
65 views

How to unmount an usb stick from a script which is on the usb stick?

How I can I unmount a usbstick right from the script which does kill itself. Because i'm running the script from the stick it's not possible to just unmount it because theres always the error: device ...
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0answers
74 views

Why does my camera not show up in /dev although it does in dmesg? (Possible Ubuntu regression.)

A while ago I could plug in my Canon via USB and it would get mounted as an external drive. Nothing has been reconfigured in the camera, but now if I plug it in $> dmesg [103943.225623] usb 1-2: ...
2
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0answers
125 views

Having a computer act as a virtual USB slave device rather than as a host

I'm only moderately proficient with USB protocols and linux in general, so please bear with me. I have a use case where I want a virtual hard disk (particularly, on a freeNAS installation) to act as ...
0
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1answer
44 views

Dell 3110cn USB printer not detected

I have a Dell 3110cn printer that I was previously using as a network printer with success on my ArchLinux box. Now I have to use it as a USB printer (I can't use LAN anymore) but it is not ...
0
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0answers
35 views

How reliable is g_serial?

I am building an embedded device with linux inside, using Ethernet to communicate with its host. Now I need to switch to USB. The only thing I need from USB is a pair of bulk pipes, exactly what ...
0
votes
1answer
59 views

Attaching a phram mtd0 device to gadget serial mass storage

I'm using a Atmel SAMA5D3, I have created two phram devices /dev/mtd0 and /dev/mtd1 I am trying to attach them to a gadget mass storage module. insmod g_acm_ms.ko file=/dev/mtd0,/dev/mtd1 The ...
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1answer
46 views

ClamAV installation problem?

My USB has windows viruses in it. Before attaching it to device(windows installed), I want to delete these viruses but i have kali installed device also from which I want this action to be done. I got ...
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0answers
19 views

USB behavior changes when laptop is plugged

I have a USB camera (from IDS) and I wanted to plug it to my new laptop. I installed the software and everything was fine until all frames dropped. After an long investigation I finally understood ...
2
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2answers
53 views

“USB HDD” option replaced by “ubuntu” in BIOS, now cannot use USB boot media

So, being foolish old me, I tried to use os-uninstaller to remove my Windows installation and make way for Arch Linux. Unfortunately, now nothing on this computer boots, and I cannot even boot from a ...
0
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1answer
67 views

Detect Viruses in USB?

My USB pen brings often Windows Viruses in it. Before attaching it to windows again I would prefer to delete viruses. I have Kali Linux. Is there any way to detect Windows viruses/threats through ...
0
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0answers
109 views

Unable to access SD card on Debian Stretch

I can't access my SD card, not via the internal SD card reader of my laptop, nor via an external SD card reader. I tried to use dmesg to find the cause of the issue, but when I attach the SD card to ...
1
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0answers
122 views

Install wireless usb on CentOS 7 (VMWare)

I am very new to Linux. I have installed CentOS 7 on a virtual machine using a windows host. I am wanting to install my USB wifi dongle so it can be used on the CentOS 7 guest. (My windows does not ...
0
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0answers
77 views

Kali on Intel Processor

I'm attempting to install Kali on my Razer Blade laptop, which runs an Intel i7-4702HQ processor, from a bootable USB drive. I have one partition running Windows 8.1 and am trying to get Kali on a ...
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0answers
28 views

Connect Automatically to network with authentication Without Encryption on BeagleBone Black

I'm a new user to Linux, I develop a project in which using BeagleBone Black board with Debian, in which I need connect the board automatically to open networks detected via WIFI (authentication ...
0
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1answer
80 views

How can I query a USB device and know it is alive?

I'm using Raspbian on a Raspberry pi 2. I have an RFID reader connected to it via USB. My problem: The RFID USB device becomes unavailable at intermittent times and power cycling the device does not ...
1
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1answer
61 views

Can the OS affect USB speeds?

Via a usb 2.0 port I am currently getting transfer speeds averaging at 17mb/s with bursts up to 26 mb/s, the ram and processor are barely being touched and this transfer speed affects all devices, ...
1
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1answer
48 views

use bootable disk to redirect to flash drive

So, here's a crazy request. For reasons unknown, I'm working with a BIOS which doesn't have to option to boot from USB devices, but I really want to boot off my flash drive. The BIOS does allow me ...
1
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0answers
59 views

Map non-standard hid reports to scancodes for Logitech G105 Gaming Keyboard

So, I've recently purchased the named keyboard and have been doing some reverse engineering as to how the Logitech Gaming Software does things with it. In this process I've discovered that a few magic ...
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0answers
68 views

There is no /proc/bus/usb directory

I'm running a centos VM on ESXi. Does the /proc/bus/usb directory not show up until a USB device is connected? I just added a USB controller to the VM (it previously had non) and ran lsusb: $ ...
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1answer
337 views

how to get bus id of an usb device

I would like to bind/unbind my usb device - a wireless adapter. echo -n "1-1:1.0" > /sys/bus/usb/drivers/ub/unbind So to able to do that, I need the bus ID. lsusb prints out the following: Bus ...
0
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0answers
29 views

Unable to mount 320GB volume (external RocketFish) via auto-usb

Cannot access my external hard drive--many files! (20GB remains). This is the message I get when plugging in the USB: Error mounting /dev/sdb at /media/reb/208CC64B8CC61AE4: Command-line `mount -t ...
0
votes
0answers
94 views

Parallel device redirection fails in FreeRDP

I compiled FreeRDP using the following command : /usr/bin/cmake -DCMAKE_INSTALL_PREFIX=/usr -DWITH_CHANNELS=ON -DWITH_SERVER=OFF \ -DWITH_CLIENT=ON -DWITH_PULSE=ON -DWITH_ALSA=ON -DWITH_XINERAMA=OFF ...
1
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1answer
30 views

Kernel not recognizing new devices from DKMS module?

I've done some work backporting the kernel modules for hid-apple and bcm5974 (with lots of help from SicVolo) and writing DKMS scripts for them so I can maintain compatibility across kernel upgrades: ...
2
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0answers
67 views

How can I make udev accept mass storage and reject everything else?

I'm trying to write a udev rule to allow USB mass storage devices but reject anything else (keyboard, mouse, etc). I found this online: ACTION!="add", GOTO="deauthorize_end" SUBSYSTEM!="usb", ...
1
vote
1answer
135 views

Find physical location of USB port?

I recently discovered that my computer has an USB3 entry: Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device ...
0
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0answers
23 views

SATA hdd to USB not showing up on computer/s

Hitachi deskstar hdd 250gb. Was once used as internal hdd to store my data. Formatted to either ext2 (or 3) as I used it on computer with puppy Linux. The circuit board blew a couple of months ago. I ...
0
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1answer
62 views

Installed kali and ubuntu with usb on d drive, cant reach c drive where windows is op [closed]

I am totally newb to linux. I first installed kali linux, -c drive was full so installed kali on d, by using unetbooting- then i got black screen with white cursor then i installed ubuntu with lili, ...
4
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0answers
598 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 ...
0
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1answer
62 views

how to know port to device mapping of a hub in linux

I have a system where multiple USB ethernet devices (of same vendor) are connected to a USB hub. I have a physical mapping of which port has which ethernet interface. Is there a way I can identify the ...
5
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1answer
482 views

What's changed with USB drivers in 4.0 and later Linux kernels?

With kernels up to 3.19, all of my USB devices work perfectly. On upgrading to 4.0 or later, some of my USB devices stop working and the kernel produces errors like this: [ 3.369436] usb 9-1: ...
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0answers
26 views

Can't Wireshark the USB bus: permissions

I am trying to monitor my USB traffic using Wireshark. The docs say "just do sudo modprobe usbmon". Well, that doesn't work: vorac@laptop:~$ sudo modprobe usbmon [sudo] password for vorac: ...
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0answers
37 views

Booting full Linux Mint off USB on Intel Macbook pro?

I almost never post questions online but this time I couldn't find a solution to my problem. My problem is that I'm trying to boot full Linux Mint from a USB on a Macbook Pro. I was already successful ...
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2answers
122 views

Is USB 3.0-to-USB 3.0 data transfer between two Linux OSes possible?

This Is USB-to-USB data transfer between two Linux OSes possible? question and the answer is USB 2.0 which is simply outdated. As USB 3.0 is much faster than simple Gigabit Ethernet and I want to ...