/etc/modprobe.d

All files in the /etc/modprobe.d subdirectory tree which end with the .conf extension are scanned when modules are loaded and unloaded using modprobe. Files in the /etc/modprobe.d directory control some parameters that come into play when loading with modprobe. These parameters include module name aliases and automatically supplied options. You can also blacklist specific modules to avoid them being loaded.

Settings apply to modules as they are loaded or unloaded, and configurations can be changed as needs change.

The format of files in /etc/modprobe.d is simple: one command per line, with blank lines and lines starting with # ignored (useful for adding comments). A backslash at the end of a line causes it to continue on the next line, which makes the file a bit neater.