- DAY
- DEBUG_PROC_TREE
- DEC
- DEFAULT_MAJOR_ROOT
- DEFAULT_MINOR_ROOT
- DEF_INITSEG
- DEF_SETUPSEG
- DEF_SYSSEG
- DEF_SYSSIZE
- DEF_TERMIOS
- DEVICE_INTR
- DEVICE_NAME
- DEVICE_NR
- DEVICE_OFF
- DEVICE_ON
- DEVICE_REQUEST
- DEVICE_TIMEOUT
- DIV10
- DMA_READ
- DMA_WRITE
- DRIVE
- DRIVE_INFO
- DRQ_STAT
- DS
- DST_AUST
- DST_AUSTALT
- DST_CAN
- DST_EET
- DST_GB
- DST_MET
- DST_NONE
- DST_RUM
- DST_TUR
- DST_USA
- DST_WET