modinfo

Show information about a Linux kernel module

Description

The modinfo command extracts and displays information from Linux kernel modules. It can show details such as the module's author, description, license, parameters, and more.

Syntax

modinfo [OPTION]... [MODULE_NAME|FILENAME]

Options

-a, --author：Display the module's author.
-d, --description：Display the module's description.
-l, --license：Display the module's license.
-p, --parameters：Display the parameters that the module accepts.
-n, --filename：Display the module's filename.
-0, --null：Use the ASCII NULL character to separate fields instead of a newline.
-F, --field <field>：Only display the value of the specified field.

Parameters

Module Name: The name of the kernel module (e.g., sg). Filename: The path to a module file (e.g., /path/to/module.ko).

Examples

Display information for the sg (SCSI generic) module:

[root@localhost ~]# modinfo sg
filename:    /lib/modules/2.6.9-42.ELsmp/kernel/drivers/scsi/sg.ko
author:     Douglas Gilbert
description:  SCSI generic (sg) driver
license:    GPL
version:    3.5.31 B0B0CB1BB59F0669A1F0D6B
parm:      def_reserved_size:size of buffer reserved for each fd
parm:      allow_dio:allow direct I/O (default: 0 (disallow))
alias:     char-major-21-*
vermagic:    2.6.9-42.ELsmp SMP 686 REGPARM 4KSTACKS gcc-3.4
depends:    scsi_mod