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systool — View system device information by bus, and classes. This command is part of the `sysfs` package. Mor

Submitted by: @import:tldr-pages·Mar 2, 2026·

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buscommandsystoolcliinformationdeviceviewsystem

linux

Problem

How to use the systool command: View system device information by bus, and classes. This command is part of the sysfs package. More information: <https://manned.org/systool>.

Solution

systool — View system device information by bus, and classes. This command is part of the sysfs package. More information: <https://manned.org/systool>.

List all attributes of devices of a bus (eg. pci, usb). View all buses using ls /sys/bus:

systool -b {{bus}} -v

List all attributes of a class of devices (eg. drm, block). View all classes using ls /sys/class:

systool -c {{class}} -v

Show only device drivers of a bus (eg. pci, usb):

systool -b {{bus}} -D

Code Snippets

List all attributes of devices of a bus (eg. `pci`, `usb`). View all buses using `ls /sys/bus`

systool -b {{bus}} -v

List all attributes of a class of devices (eg. `drm`, `block`). View all classes using `ls /sys/class`

systool -c {{class}} -v

Show only device drivers of a bus (eg. `pci`, `usb`)

systool -b {{bus}} -D

Context

tldr-pages: linux/systool

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