块设备注册 fs/block dev. c register blkdev(unsigned int major, const char name, struct block device operations*bops int unregister blkdev unsigned int major const char name) Linux Device moduleLinux Device & Module 10 块设备注册 fs/block_dev.c register_blkdev(unsigned int major,const char *name, struct block_device_operations *bdops) int unregister_blkdev(unsigned int major, const char * name)