The /sys/module tree consists of the following structure: What: /sys/module/ Description: The name of the module that is in the kernel. This module name will always show up if the module is loaded as a dynamic module. If it is built directly into the kernel, it will only show up if it has a version or at least one parameter. Note: The conditions of creation in the built-in case are not by design and may be removed in the future. What: /sys/module//parameters Description: This directory contains individual files that are each individual parameters of the module that are able to be changed at runtime. See the individual module documentation as to the contents of these parameters and what they accomplish. Note: The individual parameter names and values are not considered stable, only the fact that they will be placed in this location within sysfs. See the individual driver documentation for details as to the stability of the different parameters. What: /sys/module//refcnt Description: If the module is able to be unloaded from the kernel, this file will contain the current reference count of the module. Note: If the module is built into the kernel, or if the CONFIG_MODULE_UNLOAD kernel configuration value is not enabled, this file will not be present. What: /sys/module//srcversion Date: Jun 2005 Description: If the module source has MODULE_VERSION, this file will contain the checksum of the source code. What: /sys/module//version Date: Jun 2005 Description: If the module source has MODULE_VERSION, this file will contain the version of the source code.