How do I change the value of module.sig_enforce the Fedora kernel uses?
I am running a Fedora kernel ver: 4.15.3-300.fc27.i686). I am trying to load a custom device driver. When I try to use the device (via an open() call in a C program) the call errors out with errno...
View ArticlePrevent binding an iGPU to the host OS to use it later as PCI passthrough to...
I have an AMD iGPU (integrated in an AMD Ryzen 9 9950x CPU) that I want to use as the video output for a Windows VM in proxmox (I have no other GPU installed). I discovered that it doesn't have the...
View ArticleInsmod causes key rejected by service
I am running AlmaLinux 9 (RedHat 9 clone) and have compiled a new kernel module. I am running in a VM with UEFI and secure boot enabled. When I insert the module I get the following error:insmod:...
View ArticlePCI passthrough: vfio-pci ignores ids of devices
I have 3 GPUs in my dual XEON server.I followed instructions on Arch wiki and set up vfio-pci with ids=10de:100c,10de:0e1a:$ modprobe -c | grep vfiooptions vfio_iommu_type1...
View Articledoes `make localmodconfig` take built-in drivers in to account
I am trying to build a minimal kernel for my VM for learning purposes. I found the option make localyesconfig for the linux kernel, which, according to the docs only enables the modules from the output...
View Articleload driver with insmod get :disagrees about version of symbol module_layout
I compiled simple drive for Linux kernel for ARM system:$ uname -aLinux CR5 4.4.171-cr5 #2 Tue Mar 10 11:49:00 CET 2020 armv7l GNU/LinuxTo compile i used the config file from the up ruining system...
View ArticleWhich rtl8821ae driver Linux Mint uses and how to apply it to any other distro?
I have a rtl8821ae-based 5GHz WiFi card on my desktop PC (It is pci-e TP-Link Archer T4E)I would like to install and use Linux to this desktop. I try different popular distros (Ubuntu, Fedora, Manjaro...
View ArticleRoughly how camera sensor drivers work
I am trying to write a MIPI CSI-2 camera sensor driver for an embedded Linux image. Of course, there are tons of driver source codes on the Github etc. but I am having a hard time understanding how...
View ArticleHow to make Realtek nic use r8168 driver
I've been trying (unsuccessfully) for the last few days to make my Realtek ethernet card to work. I have no problems with my wireless connection: only the ethernet connection doesn't work.I have Ubuntu...
View Article(Buildroot) How to load modules automatically
I'd like to load some additional modules at boot.This works fine from the command line:modprobe -a i2c-devmodprobe -a snd-soc-pcm512xmodprobe -a snd-soc-wm8804But I want this done at boot. I've tried...
View ArticleWhat's the difference of `/etc/modules-load.d` and `/etc/modules`?
I red the introduction of them and found that, they both deal with module loading during boot time.So, what's the difference of these two different configuation ways?
View ArticleHow do I Make a Kernel Module for GPIO and access it for use in User Space?
The manufacturing of the kernel modules in question are for peripherals like SPI, UART, GPIO, PWM, I2C, and/or other specific peripherals.I have gotten to write some very basic kernel modules.I write...
View Article'Operation not permitted' when using modprobe/insmod
I'm trying to install a driver module for a dedicated PCIe board. I'm using the same OS and kernel versions stated in the datasheet but am getting the Operation not permitted error when adding the...
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Failed loading second kernel
I have cloned the kernel and switched to version v6.11 (mine is 6.11.0-14) which I have builded and run the /sbin/installkernel script (which ubuntu provides) and everything was fine but the when I...
View ArticleTPM2 in qemu running aarch64 alpine linux
I want to run an Alpine Linux VM and want to connect the host's TPM to the VM. The host is x86_64 based. The command for qemu isqemu-system-aarch64 \ -m 1024 -cpu cortex-a57 -M virt \ -bios...
View Articleiwlwifi: Failed to start INIT ucode: -110 in Arch Linux kernel version 5.5.3
I'm new to Arch Linux. I installed it on my laptop(LG Gram)it seem fine post installation. I don't remember my wlan works post installation because I used wired. But, when I turned on my laptop today...
View ArticleDoes a .h file for external kernel modules need compilation in another,...
I have an external kernel module and a Makefile. I was using Kbuild but decided to go with a straight Makefile and make. I have my headers installed, build-essential and kmod installed, and I am coming...
View ArticleAutomatic module signing for distribution in Linux
I'm new to writing Linux modules (drivers) and digital signatures, so please correct me if any of my understanding is incorrect.When I run make modules_install on my module, I get the following error...
View Articleksmbd on Ubuntu 22.04
I'm running Ubuntu 22.04 desktop, and I heard about the new ksmbd kernel module.I've upgraded the system from version 21.10.As of right now I have samba server and I want to migrate to the new ksmbd. I...
View ArticleHow do I find out Linux kernel version for an API change?
How do I find out, since which Linux version a kernel API function/macro is availible, or have undergone breaking changes (was removed, change of the type or number of arguments).For example while...
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