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In the Linux kernel 2.4.1 device driver code accounts for about 70% of the code size. [2] The driver fault can crash the whole system as it is running in the kernel mode. These findings resulted in various methodologies and techniques for verification of device drivers.
A device driver is a computer program that controls a hardware device attached to a computer or automaton. Learn about the main purpose, development, and privilege levels of device drivers, and how they interface with different types of devices and operating systems.
SocketCAN is a Linux kernel project that provides network devices and protocols for CAN bus communication. It allows multiple applications to access one or more CAN networks simultaneously and supports various CAN protocols and filters.
In computer networking, STREAMS is the native framework in Unix System V for implementing character device drivers, network protocols, and inter-process communication.In this framework, a stream is a chain of coroutines that pass messages between a program and a device driver (or between a pair of programs).
evdev is a generic input event interface in the Linux kernel and FreeBSD that generalizes raw input events from device drivers. It is used by display servers, games and console emulators, and has a user-space library called libevdev.
Video4Linux (V4L) is a collection of device drivers and an API for supporting realtime video capture on Linux systems. It supports many USB webcams, TV tuners, and related devices, and provides V4L2 device nodes for programmers to access them.
dmesg is a command on most Unix-like operating systems that shows the message buffer of the kernel, which includes messages from device drivers. Learn how to use dmesg to review the output after booting, and how to format and filter the output with text-manipulation tools.
The Linux kernel is a monolithic kernel, hence device drivers are kernel components. To ease the burden of companies maintaining their (proprietary) device drivers outside of the main kernel tree, stable APIs for the device drivers have been repeatedly requested.