dev.h

一个简单的操作系统minix的核心代码

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				src/fs/dev.h	 	 
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20200	/* Device table.  This table is indexed by major device number.  It provides
20201	 * the link between major device numbers and the routines that process them.
20202	 */
20203	
20204	typedef _PROTOTYPE (void (*dmap_t), (int task, message *m_ptr) );
20205	
20206	extern struct dmap {
20207	  dmap_t dmap_open;
20208	  dmap_t dmap_rw;
20209	  dmap_t dmap_close;
20210	  int dmap_task;
20211	} dmap[];
20212