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Questions tagged [linux-device-driver]

57 questions
24
votes
5 answers

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 is there really a "USB communication protocol"? My…
smeeb
  • 611
8
votes
5 answers

Linux equivalent of Windows Device Manager / DevCon utility?

I was wondering if there is any Linux equivalent to Windows Device Manager, or the Windows DevCon utility (a command line utility with hardware management functionality). Do drivers even work the same way in Linux?
Russel
7
votes
2 answers

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/log/kern.log, where i found out that on…
Anshuman Chatterjee
  • 123
6
votes
1 answer

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 for the running application. I don't want to…
RoUS
  • 203
3
votes
1 answer

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 involved in this?
Chinna
  • 2,449
3
votes
1 answer

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.
Lolitha Ratnayake
  • 35
3
votes
4 answers

Linux: How to reset the bluetooth adapter without rebooting the operating system?

I have an onboard bluetooth device that stops working a few hours after booting with this error. I can not understand what is the reason for this behavior, so I decided to use an another method. I need to reboot the bluetooth adapter without…
Сергей
  • 139
3
votes
2 answers

How can I understand the device topology?

I am having trouble understanding the device-model and PCIe topology on my system. I've listed the output I've been looking at and attempted to explain my mental-model of what's there in hopes it helps highlight what I'm not understanding. My…
shafe
  • 130
2
votes
1 answer

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 package. Is this enough? I don't think so. In the laptop, I run…
luca.vercelli
  • 223
2
votes
3 answers

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 found in directory /lib/modules/... How do I get it?
money-for-nothing
  • 21
2
votes
1 answer

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 about trying to write one as a way to learn C. I…
Jonathan
  • 121
1
vote
1 answer

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 drivers?
Özcan Esen
  • 113
  • 2
1
vote
0 answers

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 #include #define GPIO 1…
coolmadu
  • 11
1
vote
1 answer

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 1d6b:0001 Linux Foundation 1.1 root hub Bus 002…
geek
  • 111
1
vote
2 answers

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 simple as ioctl(cdromfd,CDROMEJECT,0) But I don't…
PaulDaviesC
  • 161
1
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