- U14F
- U14F_PRODUCT_ID
- U34F
- UART_CONFIG
- UART_DLL
- UART_DLM
- UART_FCR
- UART_FCR_CLEAR_RCVR
- UART_FCR_CLEAR_XMIT
- UART_FCR_DMA_SELECT
- UART_FCR_ENABLE_FIFO
- UART_FCR_TRIGGER_1
- UART_FCR_TRIGGER_14
- UART_FCR_TRIGGER_4
- UART_FCR_TRIGGER_8
- UART_FCR_TRIGGER_MASK
- UART_IER
- UART_IER_MSI
- UART_IER_RDI
- UART_IER_RLSI
- UART_IER_THRI
- UART_IIR
- UART_IIR_ID
- UART_IIR_MSI
- UART_IIR_NO_INT
- UART_IIR_RDI
- UART_IIR_RLSI
- UART_IIR_THRI
- UART_LCR
- UART_LCR_DLAB
- UART_LCR_EPAR
- UART_LCR_PARITY
- UART_LCR_SBC
- UART_LCR_SPAR
- UART_LCR_STOP
- UART_LCR_WLEN5
- UART_LCR_WLEN6
- UART_LCR_WLEN7
- UART_LCR_WLEN8
- UART_LSR
- UART_LSR_BI
- UART_LSR_DR
- UART_LSR_FE
- UART_LSR_OE
- UART_LSR_PE
- UART_LSR_TEMT
- UART_LSR_THRE
- UART_MCR
- UART_MCR_DTR
- UART_MCR_LOOP
- UART_MCR_OUT1
- UART_MCR_OUT2
- UART_MCR_RTS
- UART_MIDI
- UART_MODE_ON
- UART_MSR
- UART_MSR_ANY_DELTA
- UART_MSR_CTS
- UART_MSR_DCD
- UART_MSR_DCTS
- UART_MSR_DDCD
- UART_MSR_DDSR
- UART_MSR_DSR
- UART_MSR_RI
- UART_MSR_TERI
- UART_RESET
- UART_RX
- UART_SCR
- UART_TX
- UDP_NO_CHECK
- UD_ABORT
- UD_COMMAND
- UD_CSIR
- UD_DETECT
- UD_ERROR
- UD_INTERRUPT
- UD_MULTI_CMD
- UD_RESET
- UESP
- UINT_MAX
- ULAW
- ULONG_MAX
- ULTRASTOR_14F
- ULTRASTOR_14F_MAX_SG
- ULTRASTOR_24F_MAX_SG
- ULTRASTOR_24F_PORT
- ULTRASTOR_DEBUG
- ULTRASTOR_MAX_CMDS
- ULTRASTOR_MAX_CMDS_PER_LUN
- ULTRASTOR_PRIVATE
- ULTRA_CMDREG
- ULTRA_MEMENB
- ULTRA_NIC_OFFSET
- ULTRA_RESET
- UNBLK_FIRST
- UNBLK_SECOND
- UNDEFINED
- UNIT_ATTENTION
- UNIX_PATH_MAX
- UNKNOWN
- UNMASKED_UNDERFLOW
- UNMASK_INTERRUPTS
- UNNAMED_MAJOR
- UN_BUF_AVAIL
- UN_BUF_SPACE
- UN_DATA
- UN_PATH_OFFSET
- UPAGES
- URG_NOTYET
- URG_READ
- URG_VALID
- US14F_PRODUCT_ID_0
- US14F_PRODUCT_ID_1
- US24F_PRODUCT_ID_0
- US24F_PRODUCT_ID_1
- US24F_PRODUCT_ID_2
- USAGE
- USER_CS
- USER_DS
- USER_TRANS
- USE_LEFT
- USE_RIGHT
- USE_SEQ_MACROS
- USE_SIMPLE_MACROS
- USLEEP
- USLEEP_POLL
- USLEEP_SLEEP
- UTS_DOMAINNAME
- UTS_MACHINE
- UTS_NODENAME
- UTS_SYSNAME
- Un_impl