The C and C++ Include Header Files

/usr/include/linux/adb.h


$ cat -n /usr/include/linux/adb.h

     1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
     2	/*
     3	 * Definitions for ADB (Apple Desktop Bus) support.
     4	 */
     5	#ifndef __ADB_H
     6	#define __ADB_H
     7	
     8	/* ADB commands */
     9	#define ADB_BUSRESET		0
    10	#define ADB_FLUSH(id)		(0x01 | ((id) << 4))
    11	#define ADB_WRITEREG(id, reg)	(0x08 | (reg) | ((id) << 4))
    12	#define ADB_READREG(id, reg)	(0x0C | (reg) | ((id) << 4))
    13	
    14	/* ADB default device IDs (upper 4 bits of ADB command byte) */
    15	#define ADB_DONGLE	1	/* "software execution control" devices */
    16	#define ADB_KEYBOARD	2
    17	#define ADB_MOUSE	3
    18	#define ADB_TABLET	4
    19	#define ADB_MODEM	5
    20	#define ADB_MISC	7	/* maybe a monitor */
    21	
    22	#define ADB_RET_OK	0
    23	#define ADB_RET_TIMEOUT	3
    24	
    25	/* The kind of ADB request. The controller may emulate some
    26	   or all of those CUDA/PMU packet kinds */
    27	#define ADB_PACKET	0
    28	#define CUDA_PACKET	1
    29	#define ERROR_PACKET	2
    30	#define TIMER_PACKET	3
    31	#define POWER_PACKET	4
    32	#define MACIIC_PACKET	5
    33	#define PMU_PACKET	6
    34	#define ADB_QUERY	7
    35	
    36	/* ADB queries */
    37	
    38	/* ADB_QUERY_GETDEVINFO
    39	 * Query ADB slot for device presence
    40	 * data[2] = id, rep[0] = orig addr, rep[1] = handler_id
    41	 */
    42	#define ADB_QUERY_GETDEVINFO	1
    43	
    44	
    45	#endif /* __ADB_H */