CONFIG_V4L2_MEM2MEM_DEV (not configurable)

modulename: v4l2-mem2mem.ko

configname: CONFIG_V4L2_MEM2MEM_DEV

Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>Video4Linux options
└─>V4L2_MEM2MEM_DEV
In linux kernel since version 2.6.35 (release Date: 2010-08-01)  
source code:
drivers/media/v4l2-core/v4l2-mem2mem.c