Questions tagged [drivers]

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

Filter by
Sorted by
Tagged with
0
votes
0answers
5 views

How to release a USB device from cdc_adm driver?

I connect a device with customized driver via USB to my Linux machine, but my intention is connecting it to a Windows virtual machine (with VMWare Player) in order to install its Windows driver in the ...
0
votes
0answers
15 views

How to provide driver support, without upgrading the kernel?

Ahoy friends. Currently i'm using CentOS on my server, but i also have some latest hardware built in. In this case i got an Intel AX200 Wireless card, to discover other WiFi networks. Unfortunately ...
0
votes
1answer
21 views

initrd and intramfs purpose confusion

My understanding of the purpose of having initrd or intramfs is for the kernel to be able to mount a temporary file system in RAM to load drivers and other things in order to be able to mount the ...
0
votes
1answer
19 views

Is it possible to install 32 bit webcam driver (made for windows xp) on 32 bit Lubuntu?

I have an old webcam want to use it on a old laptop. Previously Windows Xp was installed on it. I installed Lubuntu and removed Windows entirely. However driver installer has .exe format. How can I ...
0
votes
0answers
17 views

How can I get the 'root' boot arg in kernel space?

I am writing a driver and I need to know what disk/partition contains the root filesystem. This can be viewed from userspace using: cat /proc/cmdline root=/dev/mmcblk0p1 How can I get the value of ...
0
votes
0answers
22 views

How message transitions between buses in linux driver subsystem

I am new to Linux Drivers Programming. I have been reading Linux Device Drivers book and looking at the source code for various examples in that book and have a decent understanding of the basics. ...
1
vote
1answer
28 views

Nvidia driver installation error

I'm new to the Linux world and I have a problem that is ruining my experience right now. I have installed Linux Mint 19.3 on my Laptop and immediately noticed a lot more battery drainage compared to ...
1
vote
0answers
43 views

Get started at writing device drivers for FreeBSD

I just decided to give FreeBSD a try last week and found out that my wireless card (Ralink rt3290) isn't supported. I am good at C - and I know I have to for this task - and am very fond of Assembly, ...
1
vote
0answers
10 views

Linux: write USB driver to force sending audio data over USB port

I recently bought some Headsets, and for my great surprise they work through a jack 3.5 mm (source) to USB-C (dest) dongle. I can charge them using a USB (source) to the same USB-C (dest). If I ...
0
votes
0answers
21 views

Installing WiFi driver for TP-Link TL WN823N RTL8192EU on Scientific Linux 7.6

I have been asked to setup a desktop computer running Scientific Linux 7.6 (our supported distro), but this computer will be needed to be able to connect to the internet using WiFi, rather than ...
0
votes
0answers
7 views

How to send some logs from qemu guest (windows 10) to ubuntu

I want to send some logs, that are generated from a driver, from qemu(having windows 10 x64 as guest OS) to ubuntu. How can I do it?
0
votes
0answers
37 views

USB Webcam stopped working on Debian

I've always been using a PS3 Eye Webcam on my Laptop with Debian 9. I did not do anything that I could bring in relation with the camera not working. Now there is no /dev/video0 device or anything ...
0
votes
0answers
12 views

Laptop won't recognize HDMI and laptop screen at the same time on Ubuntu 16.04

I have been trying to set up a dual monitor for my laptop, but it will either use the builtin display or the HDMI display, but never both at the same time. Going to Display under Settings always shows ...
0
votes
0answers
19 views

Problem with gaming in Linux Mint

I am using Linux Mint and trying to play Half Life 2: Episode One. But, glitches happening in the game. Here's my computer specs: CPU: Topology: Dual Core model: Intel Core i7-4510U bits: 64 ...
2
votes
0answers
25 views

how can I remove an event from /dev/input/event*

some specs: os : kubuntu 18.04 driver : thinkapad_acpi 0.26 laptop : thinkpad x1 yoga gen4 I got a new laptop. It's a 2 in 1, I want to be able to use the keyboard in tablet as I'm plugged ...
1
vote
1answer
21 views

yet another nvidia proprietary driver question: driver installs but does not get used

I'm trying to use the proprietary nvidia driver on a gigabyte Aero 15Xv8 laptop running Fedora 31. The nivdia driver installs fine (from RPM fusion) and it shows up fine in nvidia-settings too. But ...
0
votes
1answer
19 views

System setting to stop WiFi from dropping connection?

My WiFi connection is frequently dropping. Are there any system settings to help with the problem?
0
votes
0answers
20 views

Linux can't find camera and shows up as UNCLAIMED in lshw

I'm trying to connect my external web camera (link to camera) to my computer. I use Arch Linux. when I plug it into one of my USB ports the OS doesn't seem to recognize it, all programs which depend ...
-1
votes
1answer
38 views

Wifi card not working, rfkill hard blocked, modprobe doesnt work, reinstalled legacy drivers, rebooted, etc

This is my first post, so please tell me if I have anything to correct in regards to where I'm posting, the format, or anything else In short, my wifi card, an Intel Centrino Wireless-N 2200, as ...
0
votes
0answers
14 views

Is there a GPU timeout when booting Fedora, is it a driver issue?

I've recently installed a new graphics card (RTX 2060 KO Ultra) and all of a sudden there is now an 85 second black screen after grub before and screen activity. This never happend before and instead ...
1
vote
1answer
39 views

Ethernet issues

I can't get my RTL8111F Realtek ethernet embed chip to work like it should.I sincerely have no idea what to do now. https://www.realtek.com/en/products/communications-network-ics/item/rtl8111f ...
1
vote
1answer
117 views

How does Linux kernel works irrespective of the platform it is on?

What I specifically want to know here is: Irrespective of the underlying hardware it is on how Linux kernel manages to work on all different PCs. Or in general how any kernel can (Microsoft's NT ...
0
votes
0answers
21 views

Driver not showing up in menuconfig Yocto

For my project I would like to import the ath10k driver, but when I run menuconfig only ath9k shows up. Is there any way to import it?
0
votes
1answer
26 views

Wireless card listed but disabled

I have a WNFQ-258ACN(BT) wireless network card installed in a PICO-KBU4 board. It is running Yocto Linux. When I make ifconfig no wireless interface shows up. When I list PCI devices it shows up [...
2
votes
1answer
26 views

Usb wifi adapter problem

I have a usb wifi adapter (Edimax EW-7612UAn V2) with its driver installed on my parrot system and my computer's pci is not compatible with parrot .The problem is parrot says both adapters are ...
0
votes
0answers
15 views

polling for GPIO in user space

I wrote a USB driver a few months ago for an ARM STM32 board that provides access to the pins,on Linux. I can set or reset the pins on my board using sysfs interface. In the Interrupt section, the ...
0
votes
1answer
13 views

Understanding linux clk_core clock topology

While reading linux driver-api/clk.html documentation, I found, that struct clk_core has pointers to struct clk_core *parent; I cannot understand, why tree topology is needed? Why just array ...
0
votes
0answers
21 views

Debian 10: External monitor stopped working (works on boot, stops after log in)

My external monitor stopped working out of nowhere. I use a Dell Inspiron 15 with Debian 10, after a few months the external monitor was no longer beign recognized. I tested the monitor (with the ...
0
votes
1answer
22 views

USB hub driver on Kernel 3.4

I have a linux kernel version 3.45 which I can't update, I'm trying to connect a USB hub from SMSC (USB2514B), I can see that this model was supported natively in recent kernels but mine can't support ...
2
votes
2answers
100 views

Force the usage of usb driver for an specific device

I'm facing a really odd issue with a Wacom STU-530 device on Ubuntu 16.04. If I connect the tablet in any port it will start as USB 1.1 (really slow) because it loads the driver: ohci-pci [ 230....
0
votes
0answers
15 views

How to recompile rt2800usb driver?

I'm having a problem manually changing txpower setting of my wifi adapter. It is using the rt2800usb driver. I've tried everything. I need to hard code the txpower value. How can I clone the code to ...
0
votes
1answer
75 views

Fedora 5.5 kernel seems to be causing issues with RTL8822BE wifi adapter

A recent upgrade from the 5.4 to 5.5 kernel has resulted in me not being able to use wifi on my laptop. At the login screen, I see the connection is established. After logging in, the system hangs for ...
0
votes
0answers
19 views

Can't change txpower for Panda PAU06 wifi adapter

I just purchased a Panda PAU06 wifi adapter. The reason I got it is because I need an adapter that has an antenna connector and where I can change the txpower setting. This is because I also purchased ...
1
vote
0answers
22 views

rtl8812bu driver: can only access non encryped ssid's

I installed rtl88x2BU on a new installation of MINT 19.3 (kernel 5.3.0.40), source: github cilynx/rtl88x2BU_WiFi_linux_v5.3.1_27678.20180430_COEX20180427-5959, using the README.md instuctions for DKMS ...
0
votes
1answer
28 views

How to compile ath9k drivers from source?

I want to make some changes in ath9k drivers for learning purposes. My problem is that when I try to compile the driver, the make command is giving many implicit declaration errors, setup_timer, ...
7
votes
2answers
502 views

How to know the code flow of a driver module?

I am studying Linux device drivers, my main focus is on wifi drivers. I want to know how the code flows when I plugin my device. Maybe, I can do something like add a printk line in every function. ...
0
votes
0answers
70 views

Can't disable/blacklist nvidia driver on Debian 10

I want to choose between loading nouveau driver and nvidia proprietary driver on boot. Nvidia driver version is 430.64 So, I have added 2 custom grub entries in /etc/grub.d/40_custom. One entry with ...
1
vote
1answer
52 views

Kernel throws error while writing to the character device file in 4.9.82-ti-r102 debian 9.3

I created the device file under /dev folder successfully, but writing to that device file makes kernel to throw following error messages. Message from syslogd@beaglebone at Feb 26 15:40:10 ... kernel:...
0
votes
1answer
48 views

Wifi adapter is not recognized even in lshw

Having problem with Wi-Fi adapter connection. I have a newly installed Kali 2020.1 in my VirtualBox. Kernel 5.4.0, XFCE 4.14.2 (already done update and upgrade) My problem is that the system doesn't ...
0
votes
0answers
21 views

How to enable usb debug log?

https://github.com/torvalds/linux/blob/8965de70cbafec673417eed423bd5e0e9c244079/drivers/usb/core/hub.c#L5389 ex: if (portchange & USB_PORT_STAT_C_ENABLE) { if (!connect_change) ...
0
votes
0answers
15 views

Issues in Kali when connecting USB Wifi

I have installed Kali Linux on a VM on macOS 14 (Mojave) and I read that some of the kali tools will not connect to the host machines network card. I do not want to dual boot my Mac with Kali Linux. I ...
0
votes
0answers
76 views

nvidia drivers 390-440 stuttering - (ubuntu 20.04)

System- core i7 4790, nvidia GTX 970, 16gb RAM, ubuntu linux. Prior to an update everything was fine. After running a software update my distro shows itself as being version 20.04 although I didn't ...
0
votes
1answer
56 views

What will happen if a device driver not implemented the asyn write function?

ssize_t (*read) (struct file *, char __user *, size_t, loff_t *); Used to retrieve data from the device. A null pointer in this position causes thereadsystem call to fail with-EINVAL(“Invalid ...
2
votes
1answer
33 views

Slow transfer/write speed to USB 3 flash. What are all possible solutions?

Please see the following screenshot of transferring to a USB 3 sandisk flash drive: This has been asked before but the answers didn't help. They always suggest changing this: echo $((16*1024*1024)) &...
0
votes
0answers
49 views

couldn't allocate usb_device

I see this log in my dmesg: usb usb1-port1: couldn't allocate usb_device Here is the corresponding source code: https://elixir.bootlin.com/linux/v4.6/source/drivers/usb/core/hub.c#L4805 According ...
1
vote
1answer
53 views

which package to install: lib32-libglvnd-git or lib32-mesa-libgl-noglvnd?

I am installing crossover on a laptop with integrated Intel HD 520 Graphics. It runs 64bit Arch Linux and the 64bit display driver is mesa (version 19.3.3-1). I'm installing crossover, and I am given ...
0
votes
0answers
13 views

NVidia proprietary driver, two cards - get a second framebuffer or move framebuffer to a different card?

A machine has two NVidia cards and needs to use the proprietary driver (because one of the cards is used for CUDA). Only one framebuffer device /dev/fb0 is visible and it maps to one card, but we ...
0
votes
0answers
29 views

Epson scanner issue with GNU/Linux Ubuntu

Just bought a multifunction Epson WF2810. Printing works well. Scanner needs Epson driver named iscan-bundle-1.0.4.x64.deb.tar.gz. Download link is dead. Google was no help in finding a working mirror....
0
votes
0answers
65 views

NVIDIA Driver doesn't recognize the main laptop screen, but good with external displays, Ubuntu 18.04

I am using Ubuntu 18.04, kernel 4.15.0.76-generic, GPU is Geforce GTX 960 (GM107 chip). I set up Nvidia drivers 440.33.01 with Cuda 10.2 last week, and everything was working perfectly. I believe the ...
0
votes
0answers
46 views

rtl8814au driver stopped working

Alfa Awus1900 I spent 4 hours to resolve it but couldn't make it. Please help me on that. It's working fine on windows. I also did everything that has been said in here " https://askubuntu.com/...

1
2 3 4 5
34