Enable bounce buffers
modulename: bounce.ko
configname: CONFIG_BOUNCE
Linux Kernel Configuration
└─>Memory Management options
└─>Enable bounce buffers
In linux kernel since version 2.6.23 (release Date: 2007-10-09)
Enable bounce buffers for devices that cannot access the full range of
memory available to the CPU. Enabled by default when HIGHMEM is
selected, but you may say n to override this.
memory available to the CPU. Enabled by default when HIGHMEM is
selected, but you may say n to override this.