v4l_printk_ioctl 2839 drivers/media/v4l2-core/v4l2-ioctl.c EXPORT_SYMBOL(v4l_printk_ioctl);
v4l_printk_ioctl 2928 drivers/media/v4l2-core/v4l2-ioctl.c 		v4l_printk_ioctl(video_device_node_name(vfd), cmd);
v4l_printk_ioctl  669 include/media/v4l2-ioctl.h void v4l_printk_ioctl(const char *prefix, unsigned int cmd);