A device driver or software driver is a computer program allowing higher-level computer programs to interact with a hardware device.

learn more… | top users | synonyms (1)

5
votes
0answers
267 views

Why does a device show up as hidraw instead of hiddev?

I read the kernel documentation for hidraw and hiddev, and I understand the differences, but I am wondering how the kernel decides whether or not a device should show up as /dev/hidraw* or ...
5
votes
0answers
624 views

How to get infrared image data with sane on an epson v700 scanner?

I have read a number of posts on the topic and it seems that for now it is not possible to use sane to read infrared data (second pass) with my Epson Perfection V700 scanner out of the box. But are ...
3
votes
0answers
689 views

nVidia fail after update

I have a 64-bit computer with Ubuntu 14.04, Gnome and nVidia. I had the official drivers from nVidia installed, all working perfectly, even Steam games. I did a reboot after a recent update and the ...
3
votes
0answers
688 views

Debian driver needed for Intel ICH7M SouthBridge I/O controller

I am using a motherboard based on this architecture. http://www.intel.com/content/www/us/en/intelligent-systems/navy-pier/embedded-intel-atom-n270-with-mobile-intel-945gse-express-chipset.html I ...
3
votes
0answers
440 views

Enabling GPIO in kernel not working

I have tried to enable the GPIO pins for my system through the Kernel but I am not able to get them to work. When I try this: echo 1 > /sys/class/gpio/export The terminal window just closes. ...
3
votes
0answers
543 views

USB mouse not working

Every time I plug in any wired mouse recently, I get similar to the below on VCS1: [1443270.286164] usb 6-1: new low-speed USB device number 15 using uhci_hcd [1443270.454270] usb 6-1: New USB ...
3
votes
0answers
467 views

How do I go about making a wrapper for a driver to be used on FreeBSD?

The situation: I found myself in need of an additional NIC for my pfSense router/firewall. I had a few choices... shell out over $100 for a dual port gigabit card buy a new motherboard that has ...
3
votes
0answers
322 views

How to know the event by looking at /dev/input/by-id

I want to access the keyboard device driver. I usually accesses it by looking at /dev/input/by-name but the event provided by it gets changed every time I log in. After searchin on the Net, I found ...
3
votes
0answers
706 views

Pinguy OS 11.04 WiFi and Wired Networking is not working

I was attempting to install Pinguy OS from a YUMI created USB thumb drive, with the computer wired to my router. The internet, however, was not working. After the install, it still is not working. ...
2
votes
0answers
24 views

How to deal with tearing in Gentoo on NVIDIA?

See Why is video tearing such a problem in Linux? for the reasons behind why tearing is a problem in the first place, and why the usual "tricks" usually suggested (like "disable compositing", ...
2
votes
0answers
82 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 ...
2
votes
0answers
186 views

Problem setting-up RPi as WiFi hostspot with Ralink RT3070

I am trying to set-up my RPi as a wireless hotspot so I can control it wirelessly from my laptop. There are many guides around that are referred to in these forums as well however I keep on having the ...
2
votes
0answers
91 views

Wifi not working on compaq 6715b running ubuntu 14.04

I'm trying to get WIFI running on an old compaq 6715b laptop. It does not show up in iwconfig, so I assume that I need to install drivers. I've tried using ndiswrapper, and tried "sudo apt-get install ...
2
votes
0answers
904 views

Install rtl8188etv/rtl8188eu driver on Orange-Pi

I'm trying to install the wifi driver on Orange-Pi board. The real chip is rtl8188etv but the driver is the same. I have compiled 3.4.105+ Kernel to have the headers: mkdir ...
2
votes
0answers
61 views

Meaning of an ampersand prefix in a device tree

I am looking at a DTS file which tries to specify different nodes, but interestingly I find a few nodes having different style of nomenclature. / { model = "TI AM335x BeagleBone Black"; ...
2
votes
0answers
92 views

Elementary os reboot error iMac late 2009

I need help installing Elementary OS on my (late 2009) iMac 11.1. I am booting from an external USB and in when presented with a GRUB menu, I choose "Install Elementary OS" and then press e key to ...
2
votes
0answers
937 views

Install usb wifi tl-wn823n on Debian

I need help installing my TP Link USB dongle on Debian Wheezy. I already tried a bunch of different things and nothing seemed to work. Here is the result of some commands: $ lsusb Bus 002 Device ...
2
votes
0answers
640 views

Elementary OS ATI Graphics

I have an Acer Aspire 4820TG. It has an integrated and a dedicated graphics card, the latter is an ATI Mobility Radeon HD 5650. The installation of Elementary OS (Luna) went fine but I needed ...
2
votes
0answers
142 views

Unable to load a USB keyboard driver on Debian machine

I have a pretty simple driver for USB keyboard: #include <linux/module.h> #include <linux/kernel.h> #include <linux/usb.h> #include <linux/usb/input.h> #include ...
2
votes
0answers
223 views

Change color balance on Intel Graphics

My laptop has some screen or cable problem, because of which the screen is all pink colour. In Windows I use my Graphic Card configuration software to change the screen colours mixing colour channels ...
2
votes
0answers
253 views

Canon network printer: Unable to open the initial device, quitting

I have a up-to-date Arch Linux and Canon drivers installed from the AUR (cndrvcups-lb). At work I have a Canon iR-ADV C5235 printer, that I want to get working. I added the printer via the cups ...
2
votes
0answers
58 views

Driver not showing in /sys/bus tree

I'm trying to bind the "rt3572sta" to a USB device that previously had the "rt2800usb" driver bound to it. I ran this: $ sudo sh -c "echo [device-bus-id] > /sys/bus/usb/drivers/rt2800usb/unbind" ...
2
votes
0answers
177 views

How can I automatically include all firmware needed by selected Linux kernel modules

I have certain modules which I need compiled into the kernel. Some of these modules require firmware, which used to be automatically included from /usr/src/linux/firmware/. However, no new firmware ...
2
votes
0answers
729 views

Can't install Linux Mint Cinnamon nor Ubuntu while switchable graphics turned on

I've got Lenovo G500 intel i5 with switchable graphics (Intel and AMD Radeon HD 8579M). When I try to install Linux Mint Petra Cinnamon, when switchable graphics are on by the bios, live CD can't ...
2
votes
0answers
373 views

After installing VirtualBox to Fedora 17 the system won't boot (NVidia drivers)

My luck I had couple of older kernels, which work. The new kernel, probably somehow patched by VirtualBox fails to load. What fails is X-server, when it tries to start, here's the log: [ 14.284] ...
2
votes
0answers
227 views

Webcam Device Driver to support H.264

I have a Creative Live Cam Connect HD (id: 041e:4093) and this webcam has an on-board H.264 encoder. Unfortunately v4l2 only inputs the feed as MJPG. $ v4l2-ctl --list-formats ioctl: VIDIOC_ENUM_FMT ...
2
votes
0answers
346 views

How to configure buildroot to add a sound device?

I've used a given board configuration to reconfigure it for my individual board. My board has a CS4270 sound device of Cirrus Logic. My uImage is booting successfully on my target hardware, but an ...
2
votes
0answers
382 views

A problem with mknod when logged in as root

I am trying to load a char device driver written by myself. To achieve this I use a modified bash script published on this site: http://www.makelinux.net/ldd3/chp-3-sect-2. Here is my version of the ...
2
votes
0answers
936 views

USB keyboard won't work with usbhid driver

I have an HP thin client (model t5325) which runs Debian Linux (kernel 2.6.22.18-1-armel). We are testing some kiosk keyboards from Operator Interface Technology which are presenting themselves to ...
1
vote
0answers
10 views

How to find the configuration differences between two identical usb audio dongle devices?

I have two units of the same headset model that use a wireless USB dongle (Logitech H800). Each headset only pairs with its own dongle, but I want to get the same dongle to work with both headsets. ...
1
vote
0answers
11 views

multiseat dual gpu, can I have 2 different drivers?

I have 2 radeon 7950, set up my multiseat, everything is working fine. I use the free radeon drivers, and I'm pretty happy except for one thing, I can't test the gpu mining of bitcoins.... I'd like to ...
1
vote
0answers
38 views

Disk configuration options, what can affect performance

I have 2 disks, the same model and vendor, first one , probably performs faster. We do write into multiple files. Can you compare 2 configurations and tell what can affect performance? 1. (faster) ...
1
vote
0answers
40 views

How to diagnose display issues in linux?

I have recently upgraded my system to Debian Jessie (testing) and everything went smoothly, except the occasional distortion when the screen is updating. When a part of the screen needs to update, ...
1
vote
0answers
24 views

Plugged mouse increases boot time

I was going through the output of dmesg -e and found that my logitech mouse is increasing boot time by around 7 seconds and my total boot time is around 45 seconds. [ +7.334661] usb 1-1: new ...
1
vote
0answers
47 views

How to get the Adaptec 1200A to work under Linux at UDMA/100 (instead of 66)

A while ago, I got myself a used Adaptec 1200A controller card to keep my onboard slots free for easier connect/disconnect of drives and now I am wondering why this card will only operate at UDMA 66. ...
1
vote
0answers
2k views

How to install Realtek RTL8723BE wireless driver on debian?

I installed Debian Wheezy 7.8 on a Lenovo G50-70 x64, it seems that I don't have the driver for my wireless card installed, the output of iwconfig: lo no wireless extensions. eth0 ...
1
vote
0answers
111 views

How to use kmod-nvidia drivers for boot

I have Fedora 21 on a computer that I built with a NVIDIA GeForce GTX 660 Ti graphics card. When I was originally installing my system, I had a large number of issues with getting it running until I ...
1
vote
0answers
92 views

PULSEAUDIO does not list my ALSA capture device as a capture source

First of all, Hello everybody! My name is Przemek Gajos and this is my first post here. I have recently written an ALSA driver for my audio capture card and I have problems with PULSEAUDIO ...
1
vote
0answers
71 views

Do Access points use softMAC or hardMAC?

I am trying to understand the working of wireless in linux. I started with wpa_supplicant, hostapd applications with the help of their documentation and source code.Understood the flow and basic ...
1
vote
0answers
65 views

Touching the touchpad on Linux interrupts typing

I have a laptop with Linux Mint 17 installed. Whenever I am typing and the touchpad is enabled, successive keystrokes are being interrupted. For example, if I would try to type 'paragraph', it could ...
1
vote
0answers
35 views

How to get X output on two non-identical nVidia cards

I've been trying to get a second GPU (8600 GT) to be used in my system (main GPU is 780 Ti). The problem I'm having is that whatever I do, I can't get the monitor hooked up to the 8600 to display ...
1
vote
0answers
196 views

Reversing graphics card driver change in Linux Mint 17

Some idiot who looked back at me in the mirror a few minutes ago was following these instructions (link) and apparently got the wrong NVIDIA drivers for his old laptop with a Quadro in it. Now, ...
1
vote
0answers
3k views

nl80211 not found

Environment Linux 3.0.8 compiled for ARM FriendlyARM mini210s I cross-compiled iw for an ARM board (friendlyARM mini210s), when I installed the utility and ran it, I got this message: # iw --help ...
1
vote
0answers
64 views

Completely disable / deactivate USB in Ubuntu 10.04

I have some Ubuntu 10.04 based portable touchscreen computers at workplace and sometimes people would use USB data cable to charge their phones from the USB port. Now I have usb storage access ...
1
vote
0answers
29 views

Who would use this information to develop better support for hybrid graphics?

I have a laptop with hybrid graphics and I'm so frustrated that linux doesn't fully support it without any intervention from my side, just like any other Windows machine would normally do. So I ...
1
vote
0answers
785 views

Problem installing Radeon Driver

I have a Dell Inspiron 15 model 5547 with a AMD Radeon HD R7 M265. With a clean installation of Arch Linux (I've tried installing Debian too, without success.) I tried installing the open-source ...
1
vote
0answers
135 views

Airport Extreme BCM4331 not recognised on FreeBSD

So I have recently installed FreeBSD 10.1 (now UEFI native!) on my Mid-2012 MacBook Pro. The install went fine, except for one problem: my wireless card wasn't recognised. I looked into bwi and bwn as ...
1
vote
0answers
63 views

HD 4800 lower fan speed

I've installed Linux Mint 17, most important thing for me is to lower the fan speed to 30% as I am doing in Windows because it's really too noisy. Note that the temperature stays at ~50┬░, so this ...
1
vote
0answers
50 views

Linux xsetwacom setting equivalent to Windows wacom driver mapping

In the Windows drivers for Wacom tablets, you have the option of mapping (a) the hole monitor to a specific area of the tablet, something like the picture in this link: I can't find an option in ...
1
vote
0answers
143 views

Dell Inspiron 5110 proper drivers for Linux Mint 'Qiana' 32bit/64bit

I decided to move on Linux and choose the Mint 'Qiana' distribution.No Windows no more! But It's a little more tricky with Linux. I need a little guidance here, I cannot find all the drivers for Dell ...