include/uapi/linux/major.h

Source file repositories/reference/linux-study-clean/include/uapi/linux/major.h

File Facts

System
Linux kernel
Corpus path
include/uapi/linux/major.h
Extension
.h
Size
4657 bytes
Lines
179
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _LINUX_MAJOR_H
#define _LINUX_MAJOR_H

/*
 * This file has definitions for major device numbers.
 * For the device number assignments, see Documentation/admin-guide/devices.rst.
 */

#define UNNAMED_MAJOR		0
#define MEM_MAJOR		1
#define RAMDISK_MAJOR		1
#define FLOPPY_MAJOR		2
#define PTY_MASTER_MAJOR	2
#define IDE0_MAJOR		3
#define HD_MAJOR		IDE0_MAJOR
#define PTY_SLAVE_MAJOR		3
#define TTY_MAJOR		4
#define TTYAUX_MAJOR		5
#define LP_MAJOR		6
#define VCS_MAJOR		7
#define LOOP_MAJOR		7
#define SCSI_DISK0_MAJOR	8
#define SCSI_TAPE_MAJOR		9
#define MD_MAJOR		9
#define MISC_MAJOR		10
#define SCSI_CDROM_MAJOR	11
#define MUX_MAJOR		11	/* PA-RISC only */
#define XT_DISK_MAJOR		13
#define INPUT_MAJOR		13
#define SOUND_MAJOR		14
#define CDU31A_CDROM_MAJOR	15
#define JOYSTICK_MAJOR		15
#define GOLDSTAR_CDROM_MAJOR	16
#define OPTICS_CDROM_MAJOR	17
#define SANYO_CDROM_MAJOR	18
#define MITSUMI_X_CDROM_MAJOR	20
#define MFM_ACORN_MAJOR		21	/* ARM Linux /dev/mfm */
#define SCSI_GENERIC_MAJOR	21
#define IDE1_MAJOR		22
#define DIGICU_MAJOR		22
#define DIGI_MAJOR		23
#define MITSUMI_CDROM_MAJOR	23
#define CDU535_CDROM_MAJOR	24
#define STL_SERIALMAJOR		24
#define MATSUSHITA_CDROM_MAJOR	25
#define STL_CALLOUTMAJOR	25
#define MATSUSHITA_CDROM2_MAJOR	26
#define QIC117_TAPE_MAJOR	27
#define MATSUSHITA_CDROM3_MAJOR	27
#define MATSUSHITA_CDROM4_MAJOR	28
#define STL_SIOMEMMAJOR		28
#define ACSI_MAJOR		28
#define AZTECH_CDROM_MAJOR	29
#define FB_MAJOR		29   /* /dev/fb* framebuffers */
#define MTD_BLOCK_MAJOR		31
#define CM206_CDROM_MAJOR	32
#define IDE2_MAJOR		33
#define IDE3_MAJOR		34
#define Z8530_MAJOR		34
#define XPRAM_MAJOR		35   /* Expanded storage on S/390: "slow ram"*/
#define NETLINK_MAJOR		36
#define PS2ESDI_MAJOR		36
#define IDETAPE_MAJOR		37
#define Z2RAM_MAJOR		37
#define APBLOCK_MAJOR		38   /* AP1000 Block device */
#define DDV_MAJOR		39   /* AP1000 DDV block device */
#define NBD_MAJOR		43   /* Network block device	*/
#define RISCOM8_NORMAL_MAJOR	48
#define DAC960_MAJOR		48   /* 48..55 */
#define RISCOM8_CALLOUT_MAJOR	49
#define MKISS_MAJOR		55
#define DSP56K_MAJOR		55   /* DSP56001 processor device */

#define IDE4_MAJOR		56
#define IDE5_MAJOR		57

#define SCSI_DISK1_MAJOR	65
#define SCSI_DISK2_MAJOR	66
#define SCSI_DISK3_MAJOR	67
#define SCSI_DISK4_MAJOR	68
#define SCSI_DISK5_MAJOR	69
#define SCSI_DISK6_MAJOR	70
#define SCSI_DISK7_MAJOR	71

#define COMPAQ_SMART2_MAJOR	72
#define COMPAQ_SMART2_MAJOR1	73
#define COMPAQ_SMART2_MAJOR2	74
#define COMPAQ_SMART2_MAJOR3	75
#define COMPAQ_SMART2_MAJOR4	76
#define COMPAQ_SMART2_MAJOR5	77

Annotation

Implementation Notes