lsdev(8)

lsdev8

Display information about installed hardware

Usage

lsdev

Overview

lsdev gathers information about your computer's installed hardware from the interrupts, ioports and dma files in the /proc directory, thus giving you a quick overview of which hardware uses what I/O addresses and what IRQ and DMA channels.

Options

None.

Files

/proc/interrupts

IRQ channels.

/proc/ioports

I/O memory addresses.

/proc/dma

DMA channels.

Releases

19 releases since Debian 1.1 (Buzz); the text changed 2 times.

  1. 1.1–2.1
  2. 2.2
  3. 3.0–Arch

Bugs

lsdev can't always figure out which lines in the three examined files refer to one and the same device, because these files sometimes use different names for the same piece of hardware. For example, in some kernels the keyboard is referred to as `kbd' in /proc/ioports and as `keyboard' in /proc/interrupts. This should be fixed in the kernel, not in lsdev (as has indeed happened for this particular example).

The program does however try to match lines by stripping anything after a space or open parenthesis from the name, so that e.g. the `serial' lines from /proc/interrupts match the `serial(set)' lines from /proc/ioports. This attempt at DWIM might be considered a bug in itself.

This program only shows the kernel's idea of what hardware is present, not what's actually physically available.

Author

Sander van Malssen <[email protected]>

From procinfo-ng 2.0.304-9 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.