v4l2_kioctl      3016 drivers/media/v4l2-core/v4l2-ioctl.c 	       v4l2_kioctl func)
v4l2_kioctl       696 include/media/v4l2-ioctl.h typedef long (*v4l2_kioctl)(struct file *file, unsigned int cmd, void *arg);
v4l2_kioctl       712 include/media/v4l2-ioctl.h 			unsigned long int arg, v4l2_kioctl func);