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https://cateee.net/lkddb/web-lkddb/RELAY.html
This option enables support for relay interface support in certain file systems (such as debugfs). It is designed to provide an efficient mechanism for tools and facilities to relay large amounts of data from kernel space to user space. If unsure, say N. Hardware LKDDb. Raw data from LKDDb: (none) Sources
https://www.kernel.org/doc/htmldocs/kernel-api/relayfs.html
Relay interface support is designed to provide an efficient mechanism for tools and facilities to relay large amounts of data from kernel space to user space. relay interface. relay_buf_full — boolean, is the ...
https://unix.stackexchange.com/questions/87625/what-is-difference-between-user-space-and-kernel-space
What is difference between User space and Kernel space? Ask Question Asked 6 years, 5 months ago. ... So it can directly access both kernel address space and the user address space of the current process (assuming you aren't using the aforementioned 4G/4G patches). This means it is no problem for "high" memory to be allocated to a userland process.
https://www.kernel.org/doc/html/latest/driver-api/uio-howto.html
The main part of the driver will run in user space. This simplifies development and reduces the risk of serious bugs within a kernel module. Please note that UIO is not an universal driver interface. Devices that are already handled well by other kernel subsystems (like networking or serial or USB) are no candidates for an UIO driver.
https://stackoverflow.com/questions/29215427/fuse-filesystem-in-userspace-support-on-android
FUSE (Filesystem in Userspace) support on Android. Ask Question Asked 4 years, ... Is that mean my system support Fuse interface to allow install an user space file system ? I also found in some forum either Fuse should come as built inside kernel or it should be as fuse.ko module under /system/lib/module . But my system doesn't contain fuse.ko ...
https://stackoverflow.com/questions/17526639/linux-kernel-stoping-a-running-kernel-timer-from-user-space
Jul 08, 2013 · Linux Kernel - stoping a running kernel timer from user space. ... Question: I would like to stop the timer and switch of the LED from user space from my application instead of stopping at the kernel (that is point number 4). Is there a standard way to stop the kernel running timer from user space ?
https://github.com/nteract/kernel-relay
Through GraphQL queries and mutations, the API enables the user to launch kernels, subscribe to the status of a kernel, send Jupyter messages from a client to a kernel, and more. The architecture diagram below shows how the kernel-relay sits alongisde Jupyter kernels and serves clients. Installation $ yarn add @nteract/kernel-relay
https://en.wikipedia.org/wiki/User_space
A modern computer operating system usually segregates virtual memory into kernel space and user space. Primarily, this separation serves to provide memory protection and hardware protection from malicious or errant software behaviour.. Kernel space is strictly reserved for running a privileged operating system kernel, kernel extensions, and most device drivers.
https://www.fsl.cs.sunysb.edu/kernel-api/ch12.html
Chapter 12. relay interface support. Table of Contents. relay interface. Relay interface support is designed to provide an efficient mechanism for tools and facilities to relay large amounts of data from kernel space to user space. relay interface.
https://www.linux.org/threads/the-linux-kernel-configuring-the-kernel-part-2.8786/
Jun 16, 2014 · This question (Enable deprecated sysfs features to support old userspace tools (SYSFS_DEPRECATED)) asks if sysfs should be enabled. This is a virtual filesystem for debugging the kernel. Next, the question “Kernel->user space relay support (formerly relayfs) (RELAY)” is answered “yes” because it is needed with the current configuration.
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