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31.6.2. Loading a Customized Module - Persistent Changes

If you want to ensure that a kernel module is always loaded with specific settings, modify an existing or newly-created file in the /etc/modprobe.d/ directory with a line in the following format. 
~]# options <module_name> [parameter=value]
where [parameter=value] represents a list of customized parameters available to that module.
The following procedure illustrates the recommended steps for loading a kernel module with custom parameters on the b43 module for Open Firmware for wireless networks, ensuring that changes persist between module reloads.

Procedure 31.2. Loading a Kernel Module with Custom Parameters - Persistent Changes

  1. Add the following line to the /etc/modprobe.d/openfwwf.conf file, which ensures that the b43 module is always loaded with QoS and hardware-accelerated cryptography disabled: 
    options b43 nohwcrypt=1 qos=0
  2. Verify whether the module is not already loaded into the kernel by running the following command: 
    ~]# lsmod|grep ^b43
~]#
    Note that the output of the command in this example indicates that the module is currently not loaded into the kernel.
  3. If the module is already loaded into the kernel, you must unload the module and all its dependencies before proceeding with the next step. See Section 31.4, “Unloading a Module” for instructions on how to safely unload it.
  4. Load the b43 module by running the following command: 
    ~]# modprobe b43