- MAGICNUMBER
- MAJOR
- MAJOR_NR
- MAPCGA
- MAPCONS
- MAPEGA
- MAPMONO
- MAPVGA
- MAP_FIXED
- MAP_NR
- MAP_PAGE_RESERVED
- MAP_PRIVATE
- MAP_SHARED
- MAP_TYPE
- MAR0
- MAR1
- MAR2
- MAR3
- MAR4
- MAR5
- MAR6
- MAR7
- MARK_ERR
- MAX
- MAXEISA
- MAXHOSTNAMELEN
- MAX_ACK_BACKLOG
- MAX_ACK_SIZE
- MAX_ADDR_LEN
- MAX_ARG_PAGES
- MAX_BLKDEV
- MAX_BUF
- MAX_BUFFER_SECTORS
- MAX_CANON
- MAX_CDB
- MAX_CHRDEV
- MAX_DISK_SIZE
- MAX_DIST
- MAX_DMA_CHANNELS
- MAX_ERRORS
- MAX_FIN_SIZE
- MAX_HD
- MAX_HEADER
- MAX_INIT_ARGS
- MAX_INIT_ENVS
- MAX_INPUT
- MAX_IP_ADDRES
- MAX_IP_NAME
- MAX_IP_PROTOS
- MAX_MATCH
- MAX_REPLIES
- MAX_RESET_SIZE
- MAX_RETRIES
- MAX_ROUTE
- MAX_SCBS
- MAX_SECONDARY_PAGES
- MAX_SENSE
- MAX_SHARED_LIBS
- MAX_STATUS
- MAX_SWAPFILES
- MAX_SYN_SIZE
- MAX_TASKS_PER_USER
- MAX_TIMEOUT
- MAX_TTYS
- MAX_WINDOW
- MAYBE_CONTINUE
- MAYBE_REINIT
- MAYREDO
- MAY_EXEC
- MAY_READ
- MAY_WRITE
- MBIF
- MBMASK
- MBOA
- MBOXIN0
- MBOXIN1
- MBOXIN2
- MBOXIN3
- MBOXOUT0
- MBOXOUT1
- MBOXOUT2
- MBOXOUT3
- MCAIO
- MCA_GET
- MEDIUM_ERROR
- MEM16ENABLE
- MEMMASK
- MEM_BUFFER_SIZE
- MESSAGE_REJECT
- MICROSOFT_BUSMOUSE
- MIN
- MINEISA
- MINIX_HEADER
- MINIX_INODES_PER_BLOCK
- MINIX_I_MAP_SLOTS
- MINIX_LINK_MAX
- MINIX_ROOT_INO
- MINIX_SUPER_MAGIC
- MINIX_SUPER_MAGIC2
- MINIX_Z_MAP_SLOTS
- MINOR
- MINUTE
- MIN_LOOKAHEAD
- MIN_MATCH
- MIN_RESET_DELAY
- MIN_WINDOW
- MIN_WRITE_SPACE
- MISCOMPARE
- MIXER_IOCTL_READ_LEVELS
- MIXER_IOCTL_READ_PARAMS
- MIXER_IOCTL_RESET
- MIXER_IOCTL_SET_LEVELS
- MIXER_IOCTL_SET_PARAMS
- MKDIOADDR
- MODE_SELECT
- MODE_SELECT_10
- MODE_SENSE
- MODE_SENSE_10
- MON
- MONO
- MOUNT_ROOT_RDONLY
- MOUSE_IRQ
- MPA
- MPRINTK
- MSB_ID_Code
- MSDOS_CAN_BMAP
- MSDOS_DIR_BITS
- MSDOS_DOT
- MSDOS_DOTDOT
- MSDOS_DPB
- MSDOS_DPB_BITS
- MSDOS_DPS
- MSDOS_DPS_BITS
- MSDOS_FAT12
- MSDOS_I
- MSDOS_MKATTR
- MSDOS_MKMODE
- MSDOS_NAME
- MSDOS_ROOT_INO
- MSDOS_SB
- MSDOS_SUPER_MAGIC
- MSDOS_VALID_MODE
- MSE_CONFIG_BYTE
- MSE_CONFIG_PORT
- MSE_CONTROL_PORT
- MSE_DATA_PORT
- MSE_DEFAULT_MODE
- MSE_DISABLE_INTERRUPTS
- MSE_ENABLE_INTERRUPTS
- MSE_INTERRUPT_PORT
- MSE_INT_OFF
- MSE_INT_ON
- MSE_READ_X_HIGH
- MSE_READ_X_LOW
- MSE_READ_Y_HIGH
- MSE_READ_Y_LOW
- MSE_SIGNATURE_BYTE
- MSE_SIGNATURE_PORT
- MSG_OOB
- MSG_PARITY_ERROR
- MSG_PEEK
- MS_BUSMOUSE_MINOR
- MS_DELAY
- MS_MGC_MSK
- MS_MGC_VAL
- MS_MSE_COMMAND_MODE
- MS_MSE_CONFIG_PORT
- MS_MSE_CONTROL_PORT
- MS_MSE_DATA_PORT
- MS_MSE_DISABLE_INTERRUPTS
- MS_MSE_ENABLE_INTERRUPTS
- MS_MSE_INT_OFF
- MS_MSE_INT_ON
- MS_MSE_READ_BUTTONS
- MS_MSE_READ_X
- MS_MSE_READ_Y
- MS_MSE_SIGNATURE_PORT
- MS_MSE_START
- MS_NODEV
- MS_NOEXEC
- MS_NOSUID
- MS_RDONLY
- MS_REMOUNT
- MS_RMT_MASK
- MS_SYNC
- MTBSF
- MTBSFM
- MTBSR
- MTEOM
- MTERASE
- MTFSF
- MTFSFM
- MTFSR
- MTIOCGET
- MTIOCPOS
- MTIOCTOP
- MTNOP
- MTOFFL
- MTRAS1
- MTRAS2
- MTRAS3
- MTRESET
- MTRETEN
- MTREW
- MTSEEK
- MTSETBLK
- MTSETDENSITY
- MTTELL
- MTWEOF
- MT_ISARCHIVE_2150L
- MT_ISARCHIVE_5945L2
- MT_ISARCHIVE_VP60I
- MT_ISCMSJ500
- MT_ISDDS1
- MT_ISDDS2
- MT_ISEVEREX_FT40A
- MT_ISQIC02
- MT_ISQIC02_ALL_FEATURES
- MT_ISSCSI1
- MT_ISTDC3610
- MT_ISUNKNOWN
- MT_ISWT5099EEN24
- MT_ISWT5150
- MT_TAPE_INFO
- MY_IP_ADDR
- M_386
- M_68010
- M_68020
- M_B40x25
- M_B80x25
- M_BG320
- M_BG640
- M_C40x25
- M_C80x25
- M_CG320
- M_CG320_D
- M_CG640_E
- M_CG640x350
- M_EFAMONOAPA
- M_EGAMONO80x25
- M_ENHMONOAPA2
- M_ENH_B40x25
- M_ENH_B80x25
- M_ENH_B80x43
- M_ENH_C40x25
- M_ENH_C80x25
- M_ENH_C80x43
- M_ENH_CG640
- M_MCA_MODE
- M_OLDSUN2
- M_SPARC
- M__68010
- M__68020
- M__OLDSUN2
- M__SPARC