1
vote
0answers
18 views

Changing bluetooth device name

How can the friendly device name of a remote Bluetooth device be changed (using a command-line tool in Linux or similar)? I have looked at some of the software included in bluez-tools such as hcitool ...
0
votes
0answers
17 views

Virtual Display Device for all platforms

I am looking for a video hook driver for all(tm) platforms (namely windows 7/8, Linux, OSX). The operating system should think that there is a VGA/HDMI/... device that can be used as a second ...
1
vote
1answer
32 views

udev rule to make certain ports always correspond to certain devices

Basically my problem is that I am on a server which constantly switches around hdd's. what I want to achieve is have having devices tied to the physical ports on the hardware. like /dev/sda is port 0 ...
0
votes
2answers
66 views

How to enlarge “/”?

Im using Red Hat 6.3 MP with two 'discs': -- VMware virtual disc (sda) with: /boot (sda1) ; swap (sda2) ; lvm2-disc (sda3) -- '/dev/dm-0' mounted on '/' On '/dev/dm-0' is no free space available. ...
1
vote
2answers
56 views

Why do my devices appear to have symlinks , which are empty?

I am finding that I can't mount a device, sdb. However, I don't see it in mounts: [root@idh1 rhs-hadoop-install-0_61]# mount | grep --color dev /dev/mapper/VolGroup-lv_root on / type ext4 (rw) ...
0
votes
0answers
50 views

My group (according to /bin/id) has rw access to a Char device but access is denied

I am in the group graphics shell@lt03wifi:/ $ id uid=2000(shell) gid=2000(shell) ...
21
votes
2answers
606 views

What problems does udev actually solve?

For that matter, what exactly was wrong with a bunch of static files in /dev? It's apparently unsatisfactory enough for developers to have reinvented this wheel by my count 3 times now (devfs -> udev ...
1
vote
0answers
74 views

Fedora set capture device to demorse

I'm using a program called demorse (official page is down a the time of this writing). On Ubuntu 12.04 LTS it works fine when I run it like this: $ demorse -phw:0 That means: Use hw:0 as DSP ...
0
votes
0answers
22 views

When nodes are created in linux at the time of system bootup?

I am working on Linux kernel 3.4.56, and I am trying to add a system upgrade feature in my system using external USB device. So in my implementation is check that, if /sys/block/sd*(a/b) node is ...
1
vote
0answers
156 views

Removing/changing default sound card number

I'm guessing my current sound card setup is cause conflicts with other software (particularly Rakarrack) and I ran the aplay -l command: **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA ...
0
votes
0answers
129 views

How access the files from a Samsung S3 with DOS commands?

After enabling the "Developer options" in the Settings of a Samsung Galaxy GT-I8190N, and connecting it to the PC via the USB cable I was able to backup its files using the file explorer from Windows ...
1
vote
1answer
151 views

Does `ro` matter in CD-ROM mounts?

As far I know, /dev/cdrom usually provides a read-only device. However, some sources suggest to add ro in the /etc/fstab and others not. Is there a difference between /dev/cdrom /mnt/cdrom auto ...
0
votes
1answer
57 views

Power off device from Linux

I'm trying to find out a way to power off device (hard drive) via sysfs or anything else. What I've found, it's receipts to turn off power supply from usb devices, but that's not what I'm looking ...
0
votes
1answer
237 views

USB not registering on Linux

I have a usb with a hidden cdfs partition that I want to purge, but when I plug it into my linux box, it doesn't register. fdisk -l only shows my hard drives, and the usb doesn't auto-mount. I pulled ...
12
votes
1answer
745 views

Linux - Creating Virtual Audio Device

My question here is rather simple. How does one create a purely virtual audio device in ALSA that would be capable of: being used as an audio output destination, being used as an audio input source, ...
0
votes
2answers
323 views

make permanant change to /sys/devices/platform/

I'm configuring my thinkpad's trckpoint using the following command: sudo echo -n 120 > /sys/devices/platform/i8042/serio1/serio2/speed sudo echo -n 255 > ...
2
votes
1answer
510 views

What does the output of fdisk mean?

I've got a flash drive and I want to understand the properties of it as is outputted from fdisk. I inserted it and check the dmesg and I could see that it was mounted as /dev/sdb1 so I ran fdisk to ...
3
votes
2answers
105 views

On Linux, is devices order constant?

For example will sda2 be sda2 on every boot? What about NICs? Will eth0 always be the same card?
0
votes
2answers
48 views

Is it possible to set the device containing a linux root filesystem to always be detected as a specific block device?

I have a bootable linux thumb drive meant to deploy linux OS images and I've been having problems with the thumb drive occasionally changing the /dev/sd device it mounts as, wreaking havoc with the ...
1
vote
1answer
556 views

What is the difference between /dev/usb, /proc/bus/usb and /sys/bus/usb?

In terms of content, what is the difference between these 4 folders? /dev/usb /proc/bus/usb /sys/bus/usb /sys/class/usb_device I found many symlinks between those folders, many redundant ...
1
vote
0answers
75 views

User interface navigable via game controller [closed]

I am not sure if this is the most apt place to ask this question, but I looked through all the sites so here goes. I am repurposing an old desktop as a media center PC using Ubuntu(for the time ...
3
votes
2answers
426 views

How is /dev/zero created and how can I make variants like /dev/one?

I read the mknod man page, which is (as far as I can tell) what you would use to make a character device like /dev/zero, but I don't see how you would get it to yield an infinite stream of zero bits ...
1
vote
1answer
103 views

Format of Linux device name (in /dev)

Is there a format of names of devices in /dev. I know there are conventions like sd maps to a disk. I was wondering however if the kernel forces a specific format? I noticed when I tried to attach a ...
2
votes
0answers
125 views

Linux USB to work as CD ROM in OS X

I am working in driver development in Linux USB modules. I have written a driver for USB and it is working as CD ROM in a Windows machine. I made the first partiton as fat32 modprobe g_hidmass ...
1
vote
0answers
51 views

Where to look for devices for writing devices drivers in linux?

I am thinking of getting my hands dirty with Linux kernel by writing drivers for some real devices for which there are no drivers available currently. The device specification should also be freely ...
1
vote
1answer
3k views

How can I list Ubuntu disks by a unique identifier?

I am running Ubuntu 12.04 LTS inside a VM running on VMware Workstation 8.0.4. When I try to view the disks attached to the machine by their ID nothing shows up but the CD-ROM drive. I listing the ...
2
votes
2answers
839 views

How do I prevent USB flash drive from getting a new Linux device name after wake from sleep?

I'm booting Linux from a USB flash drive on my laptop. Everything runs fine until I put the laptop to sleep. When it wakes up, suddenly the USB flash drive gets a different device name, and ...
4
votes
1answer
6k views

Configure permissions for /dev/ttyUSB0

I'm trying to communicate with an Arduino from Ubuntu 12.04. When plugging in the USB cable, the arduino's serial port occurs as /dev/ttyUSB0. When I try to connect to it using moserial, I'm getting ...
1
vote
2answers
2k views

How to get the speed of a network card on the command line?

I am trying to see what the speed of some network cards on a remote server. Our reporting software says they are 10Mbps, but I am sure that is wrong they should be 1Gbps. Our monitoring software uses ...
2
votes
1answer
3k views

USB drive recognized in logs, but no device file for it

I'm trying to mount a flash drive (16 GB Cruzer) on my Arch Linux desktop. It works fine on my Arch Linux laptop, so it's not a problem with the drive. The drive is in /var/log/messages.log.3: Dec ...
1
vote
0answers
438 views

Missing data reading hidraw

When reading data from HID device via hidraw, sometimes I miss some data. I can see that the data is transmitted OK over USB using a hardware snooping device, but for some reason I don't always get ...
1
vote
4answers
117 views

How do I get information about a partition through the command line?

On Ubuntu, I have the link to the partition (e.g. /dev/sda1). I want to know the labels, size,... of that partition. How can I do that with a command in which the partition's link is a parameter? It ...
1
vote
1answer
2k views

How do I find the device node file for a USB device in Linux?

I've bought an X10 Home Automation USB interface: the CM15. This is the information lsusb gives: skerit@KIP-DU-SKER:~$ lsusb Bus 008 Device 002: ID 0bc7:0001 X10 Wireless Technology, Inc. ActiveHome ...
0
votes
2answers
467 views

How to get the device of a corrupted USB Stick on linux?

In order to try to rescue a USB stick which has probably a corrupted allocation table, I would like to get the device. I'm using Ubuntu 10 as a guest in VirtualBox, Host: Win7. Windows just tells me ...
0
votes
1answer
154 views

What to do when you can't find how your device was registered?

Before Linux Kernel 3.0 (2.6.39) I can run the following command: # ifconfig wlan0 up Now I can't. I got an error saying that this device was not found. I've tried to unplug my usb dongle, plug and ...
1
vote
2answers
138 views

USB Device Port Affinity in Linux

I'm running a linux machine (Ubuntu 10.04) inside of an autonomous submarine that has many USB devices attached to it such as cameras, usb->serial devices, etc. Unfortunately, every time the machine ...
4
votes
2answers
212 views

Restrict device ownership to root only. But why?

NSA's Guide to the Secure Configuration of Red Hat Enterprise Linux 5 recommands restricting device ownership to root only. So my question is why should we restrict device ownership to root? And ...
5
votes
4answers
1k views

Relation between device, device driver, device file and mounted point

How are devices, device drivers, device files and mounted points related in Linux (I am a beginning user of Ubuntu)? My understanding about them is quite vague; I hope there will be some clear ...
2
votes
5answers
4k views

cannot find USB device to mount

How can I find which /dev/? device to mount my USB hard drive on Red Hat 3 Taroon?  I've been Googling a lot and checked log files and still no clue. I'm trying my last chance with you experts, # ...
2
votes
1answer
187 views

mount remote devices locally (Linux)

I was wondering if you can 'share' devices in Linux by overlaying the devices nodes? For instance, is it possible to use SSH (FS) + bind to selectively bind devices locally?
1
vote
4answers
554 views

Linux Device Files

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