bsg_cdev 474 block/bsg.c static struct cdev bsg_cdev; bsg_cdev 500 block/bsg.c cdev_init(&bsg_cdev, &bsg_fops); bsg_cdev 501 block/bsg.c ret = cdev_add(&bsg_cdev, MKDEV(bsg_major, 0), BSG_MAX_DEVS);