?? spull.h
字號(hào):
/* * spull.h -- definitions for the partitionable block device * * Copyright (C) 2001 Alessandro Rubini and Jonathan Corbet * Copyright (C) 2001 O'Reilly & Associates * * The source code in this file can be freely used, adapted, * and redistributed in source or binary form, so long as an * acknowledgment appears in derived source files. The citation * should list that the code comes from the book "Linux Device * Drivers" by Alessandro Rubini and Jonathan Corbet, published * by O'Reilly & Associates. No warranty is attached; * we cannot take responsibility for errors or fitness for use. */#include <linux/ioctl.h>/* version dependencies have been confined to a separate file */#include "sysdep.h"/* * Macros to help debugging */#undef PDEBUG /* undef it, just in case */#ifdef SPULL_DEBUG# ifdef __KERNEL__ /* This one if debugging is on, and kernel space */# define PDEBUG(fmt, args...) printk( KERN_DEBUG "spull: " fmt, ## args)# else /* This one for user space */# define PDEBUG(fmt, args...) fprintf(stderr, fmt, ## args)# endif#else# define PDEBUG(fmt, args...) /* not debugging: nothing */#endif#undef PDEBUGG#define PDEBUGG(fmt, args...) /* nothing: it's a placeholder */#define SPULL_MAJOR 0 /* dynamic major by default */#define SPULL_DEVS 2 /* two disks */#define SPULL_RAHEAD 2 /* two sectors */#define SPULL_SIZE 2048 /* two megs each */#define SPULL_BLKSIZE 1024 /* 1k blocks */#define SPULL_HARDSECT 512 /* 512-byte hardware sectors *//* * The spull device is removable: if it is left closed for more than * half a minute, it is removed. Thus use a usage count and a * kernel timer */typedef struct Spull_Dev { int size; int usage; struct timer_list timer; spinlock_t lock; u8 *data;} Spull_Dev;
?? 快捷鍵說(shuō)明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號(hào)
Ctrl + =
減小字號(hào)
Ctrl + -