Questions tagged [linux-device-driver]

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Controll Laptop LEDs

My laptop (HP Probook 11 G5 EE) has a LED on the back of the lid, which can be controlled under Windows with the program HP Interactive Light. Unfortunately, this is not available for Linux. As a ...
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configure cec-client on linux

My goal is to connect my linux laptop to my smart TV and to "control" the laptop with the TV remote. I have connected the two devices with an HDMI cable and installed cec-utils Ubuntu ...
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No input driver specified, ignoring this device

I am trying to connect my virtual gamepad device to Linux. However, opening running the console app I get the message No input driver specified, ignoring this device. This device may have been added ...
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Error while "make install" vanilla Linux kernel when compiling DKMS Nvidia proprietary drivers: "No rule to make target '/Kbuild'. Stop"

I have a Fedora 34 Workstation and want to install a vanilla kernel. My current kernel is 5.13.12-200. I downloaded 5.14 from kernel.org. I copied the config file of the current kernel with cp /boot/...
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Printf and Scanf device driver function

In C program,there are printf and scanf functions which are actually functions connecting the program with output screen device and input keyboard device. Is it right to look at printf and scanf ...
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How does newer Linux kernels load non-removable hardware device drivers during boot?

Problem: Multiple device drivers (specified in the device tree) are not loading during boot. All built in drivers get loaded with no issue. The drivers successfully load and function if modprobe is ...
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RHEL7 not assigning link-local IPv6 address to a new network interface

I have written Linux network drivers for a new device. I expect the new interface to get IPv6 link-local address when I insmod the drivers. This works fine on Debian10, CentOS8 and various Ubuntu ...
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Why does insmod of a driver generate a ttyF device?

I've recently had the case of compilating a driver for a PCIe to Serial Adapter. (more specifically, the AX99100 chipset on that card) For a quick test, I didn't really install the driver, but just ...
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Installing amdgpu-pro ubuntu 20.04

Having issues installing amdgpu-pro for opencl support for applications like Davinci Resolve. I downloaded and ran the installer as stated on the website. Version: amdgpu-pro-20.30-1109583-ubuntu-20....
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how to disable wwan0 and prevent it from starting up again?

I'm using a Raspberry Pi with the SIM7600E 4G hat to set up a point-to-point protocol connection, using pppd. This all sets up correctly all works, however when I use it to browse the internet, the ...
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Unable to enable / configure Bluetooth for Lenovo Y520

I have Lenovo Y520 (Legion) with Gentoo and failed to setup Bluetooth support. As documentation says: Bluetooth wireless * Combo w/ Wifi card I followed the instruction from https://wiki.gentoo.org/...
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Getting 'nodrv_CreateWindow Application tried to create a window, but no driver could be loaded' Winehq error while running .exe file on my linux VM

I Installed Winehq stable release version 5.0 and on my Linux VM(Ubuntu 18.04) tried to run .exe file . I keep getting following errors. 0009:err:winediag:nodrv_CreateWindow Application tried to ...
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How to use hwsim, "Module mac80211_hwsim not found in directory" error

I have tried using this guide: https://wireless.wiki.kernel.org/en/users/drivers/mac80211_hwsim and did modprobe mac80211_hwsim However the output is: modprobe: FATAL: Module mac80211_hwsim not ...
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how to read PWM (pulse width modulation signals)

I am developing embedded Linux driver level program in Toradex Apalis Tk1 development board with IXORA career board, and with operating system is Embedded Linux. I need to know that how to read PWM ...
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Hardware peripherals and device drivers windows/linux

We have a query on hardware peripherals, How a device drivers fetch the peripheral details when it is connected to the PC for the first time. We need to know if the peripheral properties like the ...
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Is there a risk that new kernel driver ee1004 could lock up spd eeprom?

For newer DDR4 DRAM modules SPD (Serial Presence Detect) data is no longer accessible through AT24C02-compatible EEPROMs (as per DDR3). DDR4 memory provides 512 bytes of data at one lower and one ...
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Converting Linux driver for SPI device to run on USB-to-SPI bridge

I have a Holt HI-3110 chip that implements a CAN bus interface that is run over an SPI host interface. A driver for the chip is in the Linux mainline (in /drivers/net/can/spi). I'm targeting a host ...
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Is the Microtek 5950 scanner supported on Linux?

Is the Microtek 5950 scanner supported on Linux? That is, Is there a vendor-released/supported driver for it? Is there a FOSS driver for it? Or a driver which it works with? Is there any specific ...
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dkms for ixgbe fails with *** No targets

I'm trying to setup DKMS for the Intel ixgbe driver. Below are the steps that seemed most correct, however I am not successful with this or other variations. I'm using CentOS 7. I'm using the ...
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Unable to install TP Link TL-WN823N wireless adapter in Kali Linux

I have been trying to install TP Link TL-WN823N wireless adapter in Kali Linux VM for the last couple of days and still I'm nowhere. I have done: apt-get update, apt-get upgrade. Installed all ...
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2 answers
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Many USB 3.0 devices on a single Ubuntu via a powered HUB

I tried connecting multiple usb 3.0 enabled devices to my ubuntu 12.04 machine. But found out that at a time not more than 9 devices could be seen connected. I tried monitoring the kernel logs at /var/...
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ethernet interface on Linux drops packets

I'm trying to capture some Ethernet frames with Linux. Some of these packets/frames are invalid and contain corrupted data. For example an Ethernet frame contains the type 0x0800 which is IPv4, but ...
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Fine-grained WiFi Tx Signal Strength control on a accesspoint

I'm trying to reduce TX power on an AP in order to minimize area in which devices can connect to the AP. I've tried to do this by iwconfig command such as iwconfig wlan0 txpower 1mw but it didn't work ...
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My keyboard doesn't have a Linux driver, can someone tell me what these error messages mean?

This question may be better asked on unix.stackexchange.com, but I'm asking it here because I'm quite sure someone will have an answer. My keybaord doesn't have a driver for Linux, and I'm thinking ...
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%T specifier in printf option of `stat` command

I want to know what is %T specifier in stat printf option and how it gets the file descriptor value ie., fd,1 is printed by using the below command. command is $> echo `stat -L /dev/mapper/...
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udev - change event from udev_device_get_action

I am monitoring the events of all devices connected to the host. Linux has udev daemon , which listens to all the device specific events such as online, offline, add, remove and change. I use a ...
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PCMCIA card under linux

Is it possible to use STLAB 10/100 PCMCIA LAN card under linux? From linux live CD?
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5 answers
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Is there really a "USB communication protocol"?

According to Wikipedia, USB: defines the cables, connectors and communications protocols used in a bus for connection, communication, and power supply between computers and electronic devices But ...
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How to run linux binary video drivers in a sandbox/isolated environment?

I don't trust any binary, but i have to use nvidia video card driver. Since xorg/video drivers runs as root and needs to access my hardware, is it possible to block internet connection to these ...
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Upgrading Linux kernel module without reboot

Is there any way to upgrade linux driver module without rebooting the system ?
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How Fake raid communicates with Operating system(Linux)?

I am a programmer, I studied about software, hardware and Fake raid's and I am unable to understand how fake raid communicates with operating system (Linux)? I mean which software layer or driver ...
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How to detect cdma modem connected to USB in linux

I am writing device driver and i am completely new to this concept. My Driver functionality is when i connect modem to usb my driver should detect Connected modem and get display the signal strength. ...
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My own linux corded keyboard driver and interface to my embedded application

I want to develop my own keyboard driver to my own keypad. I have to use GPIO to identify Key Events and use I2c to get scan code. I am going to develop the driver like this. #include <linux/gpio....
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1 answer
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configuring huawei e303e dongle on arm9 embedded board

i have been trying to connect 3g modem on arm9 board. bot modem is not getting detected. here is my lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID ...
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Intel Wifi card module not visible in linux menuconfig

I've gotten myself into a pickle it seems. I just got the latest gentoo kernel (3.7.10), and it seems that they didn't include my wireless lan driver in the menuconfig (or it depends on another option ...
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2 answers
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Making the keyboard eject switch work

I am using Linux.My keyboard switch for ejecting the CDROM does not work though it displays an eject button on the screen. I need to make it work. I know ejecting a cdrom using system call is as ...
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Right click not working in Redhat enterprise Linux

I have recently installed Red hat enterprise Linux on my Hp laptop. Earlier both the mouse clicks were not working, but I managed to get the left click working by tapping by some help from Google. But ...
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Serial Communication vs Device Drivers

My understanding is that serial communication is for direct CPU-to-CPU (or microcontroller-to-microcontroller) communication along a serial bus. My understanding is that a device driver is for device-...
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Grub installer has been deleted in ubuntu

I was installing an operating system (Fedora) in Virtual box which was installed in the Ubuntu Natty Narhwal. it asked me to format the disk (which should format inside virtual machine), which I did ...
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3 votes
1 answer
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How to use a handycam as a Web Cam in linux

Can I use a camcorder as V4L2src in gstreamer? Simply can I use a camcorder as a webcam in Linux? If so what models are sported? Thanks in advance.
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4 answers
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Can't see my wireless internal card on BackTrack 5

I have BackTrack 5 R3 installed on VMware and it's on bridged connection so it gets its own IP on my network and it works. I get internet connection but there is no ethernet cable connected yet ...
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Wifi not working in ubuntu

I m trying to work wifi in ubuntu 10.04 lts on HP pavilion dv6 laptop. I m new to Ubuntu I tried many thing , that were present online with Broadcom. I feel Broadmcom is not present. Please find ...
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How to Find Out What Version of Display Driver is Installed

One of my favorite games, "Wolfenstein Enemy Territory", has stopped working lately. It throws a segfault during the initialization phase. I suspect that the reason is a recent update to the video ...
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How do I run amddriverdownloader.exe on Ubuntu?

I downloaded amddriverdownloader.exe to update my Radeon HD 5450 on Ubuntu 11.10. When I run it it returns with this: jack@myComputer:~/Downloads$ amddriverdownloader amddriverdownloader: command ...
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How to make ^T work for the status char under Linux?

I’ve grown really accustomed to the BSD status char, ^T, since I first started using it back at university during the 80s. It didn’t originate with BSD, but came from even older operating systems. It ...
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Fedora Linux: Way to use stty (or equivalent) to bind key to raise SIGUSR1 for application?

I'm using FC 14, but this is probably a fairly generic Linux question. I want to be able to bind a key in the Linux terminal driver that will cause a signal other than SIGINT or SIGQUIT to be raised ...
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Atheros LAN card driver, Linux compiling problem

I have installed openSUSE 11.4 to my new workstation. It says that there is Attansic ETHERNET controller on board. But no devices seen. I typed: lspci and it returned: atheros communications device ...
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Ubuntu sound card driver

Where can I search for a sound card driver in Ubuntu? Should I use sudo apt-cache search ??? I don't know which command can I use to find my exactly sound card version in linux?
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Compiling and installing a new kernel on ubuntu 10.04

I have ubuntu 10.04 running on VMware on a windows host. I am learning linux device drivers programming. So in the process, I was trying to set up a linux source tree and build and load a custom ...
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Unauthorized mount hd ubuntu 10.04

Hey, I am trying to mount my hd on ubuntu by I receive this message "No possible mount location - Not Authorized". It happened after some upgrades on system, and the sound stoped too. here is my ...
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