title: Upgrade a specific Linux Kernel Subsystem?
body: <p>Is it possible to upgrade only a specific sub-system, say I2C, of the Linux Kernel.</p>
  
  <p>For example:
  Is it possible to include "Support for multiplexed I2C bus topologies (introduced in Kernel 2.6.36)" in the Kernel version 2.6.31.1.</p>