This is the io_uring library, liburing. liburing provides helpers to setup and teardown io_uring instances, and also a simplified interface for applications that don't need (or want) to deal with the full kernel side implementation.

This package provides a Linux Kernel module that controls battery charging of specific ThinkPad laptops. It also includes an improved version of the HDAPS driver. The underlying hardware interfaces are SMAPI and direct access to the embedded controller.

Kbd-neo provides the Neo2 keyboard layout for use with loadkeys(1) from kbd(4).

These are a set of utilities built upon sysfs, a virtual file system in Linux kernel versions 2.5+ that exposes a system's device tree. The package also contains the libsysfs library.

The inih (INI Not Invented Here) library is a simple .INI file parser written in C. It's only a couple of pages of code, and it was designed to be small and simple, so it's good for embedded systems. It's also more or less compatible with Python's ConfigParser style of .INI files, including RFC 822-style multi-line syntax and name: value entries.

OpenFabrics Interfaces (OFI) is a framework focused on exporting fabric communication services to applications. OFI is best described as a collection of libraries and applications used to export fabric services. The key components of OFI are: application interfaces, provider libraries, kernel services, daemons, and test applications.

Libfabric is a core component of OFI. It is the library that defines and exports the user-space API of OFI, and is typically the only software that applications deal with directly. It works in conjunction with provider libraries, which are often integrated directly into libfabric.

bpftrace is a high-level tracing language for Linux enhanced Berkeley Packet Filter (eBPF) available in recent Linux kernels (4.x). bpftrace uses LLVM as a backend to compile scripts to BPF-bytecode and makes use of BCC for interacting with the Linux BPF system, as well as existing Linux tracing capabilities: kernel dynamic tracing (kprobes), user-level dynamic tracing (uprobes), and tracepoints. The bpftrace language is inspired by awk and C, and predecessor tracers such as DTrace and SystemTap. bpftrace was created by Alastair Robertson.

This package provides a program to generate an ext2 file system as a normal (non-root) user. It does not require you to mount the image file to copy files on it, nor does it require that you become the superuser to make device nodes.

iptables is the user-space command line program used to configure the Linux 2.4.x and later IPv4 packet filtering ruleset (firewall), including NAT (Network Address Translation).

This package also includes ip6tables, which is used to configure the IPv6 packet filter.

Both commands are targeted at system administrators.

The libseccomp library provides an easy to use, platform independent, interface to the Linux Kernel's syscall filtering mechanism. The libseccomp API is designed to abstract away the underlying BPF based syscall filter language and present a more conventional function-call based filtering interface that should be familiar to, and easily adopted by, application developers.

The CRDA acts as the udev helper for communication between the kernel Linux and user space for regulatory compliance.

Btrfs is a CoW file system for Linux aimed at implementing advanced features while focusing on fault tolerance, repair and easy administration.

This package contains Advanced Linux Sound Architecture topology configuration files that can be used for specific audio hardware.

mbpfan is a fan control daemon for Apple Macbooks. It uses input from the coretemp module and sets the fan speed using the applesmc module. It can be executed as a daemon or in the foreground with root privileges.

As a consequence of its monolithic design, file system code for Linux normally goes into the kernel itself---which is not only a robustness issue, but also an impediment to system extensibility. FUSE, for "file systems in user space", is a kernel module and user-space library that tries to address part of this problem by allowing users to run file system implementations as user-space processes.

This package provides a shell script to assess your system's resilience against the several transient execution CVEs that were published since early 2018, and gives guidance as to how to mitigate them.

A *Free* project to implement OSF's RFC 86.0. Pluggable authentication modules are small shared object files that can be used through the PAM API to perform tasks, like authenticating a user at login. Local and dynamic reconfiguration are its key features.

Procps is the package that has a bunch of small useful utilities that give information about processes using the Linux /proc file system. The package includes the programs free, pgrep, pidof, pkill, pmap, ps, pwdx, slabtop, tload, top, vmstat, w, watch and sysctl.

Tmon is a tool to interact with the complex thermal subsystem of the kernel Linux. It helps visualize thermal relationships and real-time thermal data, tune and test cooling devices and sensors, and collect thermal data for further analysis.

As computers become smaller and more thermally constrained, more sensors are added and new cooling capabilities introduced. Thermal relationships can change dynamically. Their complexity grows exponentially among cooling devices, zones, sensors, and trip points.

Linux exposes this relationship through /sys/class/thermal with a matrix of symbolic links, trip point bindings, and device instances. To traverse it by hand is no trivial task: tmon aims to make it understandable.

Libcxi provides applications with a low-level interface to the Cray/HPE Cassini high-speed NIC, also known as Slingshot.

Libnfsidmap is a library holding multiple methods of mapping names to ids and visa versa, mainly for NFSv4. It provides an extensible array of mapping functions, currently consisting of two choices: the default nsswitch and the experimental umich_ldap.

acpi attempts to replicate the functionality of the "old" apm command on ACPI systems, including battery and thermal information. It does not support ACPI suspending, only displays information about ACPI devices.

The Embedded Linux* Library (ELL) provides core, low-level functionality for system daemons. It typically has no dependencies other than the Linux kernel, C standard library, and libdl (for dynamic linking). While ELL is designed to be efficient and compact enough for use on embedded Linux platforms, it is not limited to resource-constrained systems.