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modinfo command

Linux Find Out Kernel Module (Device Driver) Version Number

How do I find the version of a kernel module (*.ko files located in /lib/modules/… directory) in Linux server?
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Linux: Find out what kernel drivers (modules) are loaded

How do I find out what Linux kernel drivers are loaded by Linux? How do I list device drivers (or so-called modules) loaded into memory?
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Sun Solaris UNIX display list for loaded kenel device driver / modules

Q. How do I display information about loaded kernel modules under Sun Solaris UNIX operating system?

A. You need to use modinfo command which is a trivial program to display information about the loaded modules. The format of the information is as follows:

Id Loadaddr Size Info Rev Module Name

where Id is the module ID, Loadaddr is the starting text address in hexadecimal, Size is the size of text, data, and bss in hexadecimal bytes, Info is module specific information, Rev is the revision of the loadable modules system, and Module Name is the filename and description of the module.

Task: Displaying the status of kernel modules

Just enter modinfo command:
modinfo
You can pass -c option to modinfo command to display the number of instances of the module loaded and the module’s current state:
modinfo -c

Display information about particular module / driver only

You can also display information about particular module only by specifying its ID #:
modinfo -i 5
The above example displays the status of module # 5.

Read modinfo man page for other information and options.

Howto: Linux Add or Remove a Linux Kernel Modules / Drivers

How do I add or remove hardware device driver (module) from running Linux kernel?
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Howto: Display List of Modules or Device Drivers In the Linux Kernel

How do I display the list of loaded Linux Kernel modules or device drivers on Linux operating systems?
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Linux: Find out Ethernet card driver name

Under Linux, you use term called modules for device drivers. The driver can be loaded or unloaded as per your requirement using commands. Each driver or module gives the Linux information on how to control that particular Ethernet card. The name of each module (driver) is listed in the /etc/modules.conf file.

Command to find out Ethernet card driver name

You can try any one of the following command to find out your Ethernet card driver:

# dmesg | grep 'Ethernet driver'

Output:

8139cp: 10/100 PCI Ethernet driver v1.2 (Mar 22, 2004)

Or search a file called /var/log/dmesg:

# grep 'Ethernet driver' /var/log/dmesg

Output:

8139too Fast Ethernet driver 0.9.27
8139cp: 10/100 PCI Ethernet driver v1.2 (Mar 22, 2004)

You can also get driver name from config file:

# grep eth0 /etc/modules.conf

Output:

alias eth0 8139too

OR

# vi /etc/modules.conf

Search for eth0 string.

In above example 8139too is driver loaded for eth0. You can find out more information about this driver using modinfo command:

# modinfo 8139too

modinfo program to show information about a Linux Kernel module. You can also find out all loaded modules or drivers using lsmod command:

# lsmod | less

lsmod is a program to show the status of modules in the Linux Kernel.

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