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Configfs

Configfs is a RAM-based virtual file system provided by the 2.6 Linux kernel.

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Details

Configfs appears similar to sysfs but they are in fact different and complementary. Configfs is for creating, managing and destroying kernel objects from user-space, and sysfs for viewing and manipulating objects from user-space which are created and destroyed by kernel space.2 It is typically mounted at /sys/kernel/config (or more rarely at /config).

See also

  • tmpfs
  • sysctl – an interface for examining and dynamically changing parameters in the BSD and Linux operating systems

References

  1. configfs - Userspace-driven kernel object configuration http://www.mjmwired.net/kernel/Documentation/filesystems/configfs/

  2. Configfs - an introduction https://lwn.net/Articles/148973/