这是linux内核C源代码58的源程序

				/*				 * Definitions for ADB (Apple Desktop Bus) support.				 */				#ifndef __ADB_H				#define __ADB_H								/* ADB commands */				#define ADB_BUSRESET		0				#define ADB_FLUSH(id)		(0x01 | ((id) 				#define ADB_WRITEREG(id, reg)	(0x08 | (reg) | ((id) 				#define ADB_READREG(id, reg)	(0x0C | (reg) | ((id) 								/* ADB default device IDs (upper 4 bits of ADB command byte) */				#define ADB_DONGLE	1	/* "software execution control" devices */				#define ADB_KEYBOARD	2				#define ADB_MOUSE	3				#define ADB_TABLET	4				#define ADB_MODEM	5				#define ADB_MISC	7	/* maybe a monitor */								#define ADB_RET_OK	0				#define ADB_RET_TIMEOUT	3								/* The kind of ADB request. The controller may emulate some				   or all of those CUDA/PMU packet kinds */				#define ADB_PACKET	0				#define CUDA_PACKET	1				#define ERROR_PACKET	2				#define TIMER_PACKET	3				#define POWER_PACKET	4				#define MACIIC_PACKET	5				#define PMU_PACKET	6																#endif /* __ADB_H */