libpciaccess ☆

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Description:
Generic PCI access library

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: System utilities

Tags: library hardware pci system xorg

Install: brew install libpciaccess

About:
Libpciaccess is a library that provides a cross-platform API for accessing PCI devices and their configuration spaces. It abstracts away OS-specific details, enabling applications to enumerate devices and perform low-level I/O operations. Its main value is offering a unified interface for system-level tools and drivers that need direct hardware interaction.

Key Features:

Cross-platform API for PCI device access
Device enumeration and capability discovery
Direct read/write to configuration space
Memory-mapped I/O (MMIO) access

Use Cases:

Implementing low-level hardware diagnostic tools
Developing custom device drivers or user-space utilities
Querying PCI device topology and capabilities

Alternatives:

Direct sysfs access (Linux) – Libpciaccess provides a portable API, whereas sysfs is Linux-specific and requires manual parsing.

Version History

Detected	Version	Rev	Change	Commit
Feb 8, 2026 2:46pm		1	REVISION_ONLY	a0d6c6f6