This package provides the architecture-specific kernel header files for Linux kernel 2.6.16 on all 64bit x86-64 compatible machines, generally used for building out-of-tree kernel modules. These files are going to be installed into /usr/src/linux-headers-2.6.16-2-amd64-generic, and can be used for building modules that load into the kernel provided by the linux-image-2.6.16-2-amd64-generic package.