Here is a list of all documented struct and union fields with links to the struct/union documentation for each field:

- u -

u16 : ITM_Type
u32 : ITM_Type
u8 : ITM_Type
uart_baseAddress : bfin_uart_channel_t
uart_baud : bfin_uart_channel_t
UART_BRGR : Uart
UART_CMPR : Uart
UART_CR : Uart
UART_IDR : Uart
UART_IER : Uart
UART_IMR : Uart
UART_MR : Uart
UART_RHR : Uart
uart_rxDmaBaseAddress : bfin_uart_channel_t
UART_SR : Uart
UART_THR : Uart
uart_txDmaBaseAddress : bfin_uart_channel_t
uart_useDma : bfin_uart_channel_t
uart_useInterrupts : bfin_uart_channel_t
UART_VERSION : Uart
UART_WPMR : Uart
uartId : UartDma
uChannelSrc : _spdif_config
UCOMP : ENC_Type
udata : _spdif_transfer
UDRDR : SPI_TypeDef
UhsAllocationUnitSize : HAL_SD_CardStatusTypeDef
UhsSpeedGrade : HAL_SD_CardStatusTypeDef
uid : rtems_shell_env_t, rtems_user_env_t
UINIT : ENC_Type
ulClock : _console_tbl
ulCtrlPort1 : _console_tbl
ulCtrlPort2 : _console_tbl
ulDataPort : _console_tbl
ulHysteresis : _console_tbl
ulIntVector : _console_tbl
ulMargin : _console_tbl
ULPS_STATUS : MIPI_CSI2RX_Type
umask : rtems_user_env_t
UMOD : ENC_Type
unallocated : rtems_object_api_class_information
unavail_blocks : rtems_flashdisk, rtems_flashdisk_config
unblock : Scheduler_Operations
unblock_counter : RtemsRatemonReqTimeout_Context
unite : drvmgr_bus_ops
unload : rtems_rtl_loader_table
unlock : grclkgate
unlock_way : L2CC
unmap_priority : Scheduler_Operations
unmount_task : rtems_filesystem_mount_table_entry_tt
unresolved : rtems_rtl_data, rtems_rtl_elf_reloc_data, rtems_rtl_obj
unsatisfied_pending : RtemsEventReqSendReceive_Context
update : pfpu_td, rtems::thread::attributes, Thread_queue_Context
update_count : Thread_queue_Context
update_priority : Scheduler_Operations
UPOS : ENC_Type
UPOSH : ENC_Type
upper_wrprot_block : ALT_QSPI_DEV_SIZE_CONFIG_s
upperLeftX : _dcic_region_config
upperLeftY : _dcic_region_config
uptime : rtems_record_client_per_cpu
uptime_before : RtemsRatemonReqTimeout_Context
uptime_low : rtems_record_client_per_cpu
uptime_low_valid : rtems_record_client_per_cpu
UR0 : SYSCFG_TypeDef
UR1 : SYSCFG_TypeDef
UR10 : SYSCFG_TypeDef
UR11 : SYSCFG_TypeDef
UR12 : SYSCFG_TypeDef
UR13 : SYSCFG_TypeDef
UR14 : SYSCFG_TypeDef
UR15 : SYSCFG_TypeDef
UR16 : SYSCFG_TypeDef
UR17 : SYSCFG_TypeDef
UR18 : SYSCFG_TypeDef
UR2 : SYSCFG_TypeDef
UR3 : SYSCFG_TypeDef
UR4 : SYSCFG_TypeDef
UR5 : SYSCFG_TypeDef
UR6 : SYSCFG_TypeDef
UR7 : SYSCFG_TypeDef
UR8 : SYSCFG_TypeDef
UR9 : SYSCFG_TypeDef
US_BRGR : Usart
US_CR : Usart
US_CSR : Usart
US_FIDI : Usart
US_ICDIFF : Usart
US_IDR : Usart
US_IDTRX : Usart
US_IDTTX : Usart
US_IER : Usart
US_IF : Usart
US_IMR : Usart
US_LINBRR : Usart
US_LINIR : Usart
US_LINMR : Usart
US_LONB1RX : Usart
US_LONB1TX : Usart
US_LONBL : Usart
US_LONDL : Usart
US_LONL2HDR : Usart
US_LONMR : Usart
US_LONPR : Usart
US_LONPRIO : Usart
US_MAN : Usart
US_MR : Usart
US_NER : Usart
US_RHR : Usart
US_RTOR : Usart
US_THR : Usart
US_TTGR : Usart
US_VERSION : Usart
US_WPMR : Usart
US_WPSR : Usart
usage_count : rtems_profiling_smp_lock
Usart16ClockSelection : RCC_PeriphCLKInitTypeDef
Usart234578ClockSelection : RCC_PeriphCLKInitTypeDef
usartId : UsartDma
USB1_CHRG_DET_STAT : USBPHY_Type
USB1_CHRG_DETECT : USBPHY_Type
USB1_CHRG_DETECT_CLR : USBPHY_Type
USB1_CHRG_DETECT_SET : USBPHY_Type
USB1_CHRG_DETECT_TOG : USBPHY_Type
USB1_LOOPBACK : USBPHY_Type
USB1_LOOPBACK_CLR : USBPHY_Type
USB1_LOOPBACK_HSFSCNT : USBPHY_Type
USB1_LOOPBACK_HSFSCNT_CLR : USBPHY_Type
USB1_LOOPBACK_HSFSCNT_SET : USBPHY_Type
USB1_LOOPBACK_HSFSCNT_TOG : USBPHY_Type
USB1_LOOPBACK_SET : USBPHY_Type
USB1_LOOPBACK_TOG : USBPHY_Type
USB1_VBUS_DET_STAT : USBPHY_Type
USB1_VBUS_DETECT : USBPHY_Type
USB1_VBUS_DETECT_CLR : USBPHY_Type
USB1_VBUS_DETECT_SET : USBPHY_Type
USB1_VBUS_DETECT_TOG : USBPHY_Type
USB_OTGn_CTRL : USBNC_Type
USB_OTGn_PHY_CTRL_0 : USBNC_Type
usbclksel : lpc176x_scb
UsbClockSelection : RCC_PeriphCLKInitTypeDef
USBCMD : USB_Type
USBHS_CTRL : Usbhs
USBHS_DEVCTRL : Usbhs
USBHS_DEVDMA : Usbhs
USBHS_DEVDMAADDRESS : UsbhsDevdma
USBHS_DEVDMACONTROL : UsbhsDevdma
USBHS_DEVDMANXTDSC : UsbhsDevdma
USBHS_DEVDMASTATUS : UsbhsDevdma
USBHS_DEVEPT : Usbhs
USBHS_DEVEPTCFG : Usbhs
USBHS_DEVEPTICR : Usbhs
USBHS_DEVEPTIDR : Usbhs
USBHS_DEVEPTIER : Usbhs
USBHS_DEVEPTIFR : Usbhs
USBHS_DEVEPTIMR : Usbhs
USBHS_DEVEPTISR : Usbhs
USBHS_DEVFNUM : Usbhs
USBHS_DEVICR : Usbhs
USBHS_DEVIDR : Usbhs
USBHS_DEVIER : Usbhs
USBHS_DEVIFR : Usbhs
USBHS_DEVIMR : Usbhs
USBHS_DEVISR : Usbhs
USBHS_FSM : Usbhs
USBHS_HSTADDR1 : Usbhs
USBHS_HSTADDR2 : Usbhs
USBHS_HSTADDR3 : Usbhs
USBHS_HSTCTRL : Usbhs
USBHS_HSTDMA : Usbhs
USBHS_HSTDMAADDRESS : UsbhsHstdma
USBHS_HSTDMACONTROL : UsbhsHstdma
USBHS_HSTDMANXTDSC : UsbhsHstdma
USBHS_HSTDMASTATUS : UsbhsHstdma
USBHS_HSTFNUM : Usbhs
USBHS_HSTICR : Usbhs
USBHS_HSTIDR : Usbhs
USBHS_HSTIER : Usbhs
USBHS_HSTIFR : Usbhs
USBHS_HSTIMR : Usbhs
USBHS_HSTISR : Usbhs
USBHS_HSTPIP : Usbhs
USBHS_HSTPIPCFG : Usbhs
USBHS_HSTPIPERR : Usbhs
USBHS_HSTPIPICR : Usbhs
USBHS_HSTPIPIDR : Usbhs
USBHS_HSTPIPIER : Usbhs
USBHS_HSTPIPIFR : Usbhs
USBHS_HSTPIPIMR : Usbhs
USBHS_HSTPIPINRQ : Usbhs
USBHS_HSTPIPISR : Usbhs
USBHS_SCR : Usbhs
USBHS_SFR : Usbhs
USBHS_SR : Usbhs
USBHS_TSTA1 : Usbhs
USBHS_TSTA2 : Usbhs
USBHS_VERSION : Usbhs
USBINTR : USB_Type
USBMODE : USB_Type
USBSTS : USB_Type
use_helping : ScoreSchedReqYield_Context
use_helping_scheduler : ScoreTqReqSurrenderMrsp_Context, ScoreTqReqSurrenderPriorityInherit_Context
USE_NULL_PKT_BLLP : DSI_HOST_DPI_INTFC_Type
use_pec : i2c_bus
used : rtems_flashdisk, rtems_stack_checker_info
used_blocks : Heap_Statistics
used_cpus : ScoreTqValSmp_Context
used_page_tables : aarch64_mmu_control
used_size : rtems_jffs2_info
useExtVsync : _csi_config
user : _rtems_rfs_file_system, rtems_bdbuf_buffer, rtems_blkdev_sg_buffer
user_data : Timer_Control, Timer_Scheduling_Data
user_environment : _Thread_Control
User_initialization_tasks_table : rtems_api_configuration_table
User_mpci_table : MPCI_Configuration
USERConfig : FLASH_OBProgramInitTypeDef
userData : _asrc_edma_handle, _asrc_handle, _csi_handle, _dsi_handle, _edma_handle, _enet_config, _enet_handle, _flexcan_edma_handle, _flexcan_handle, _flexio_camera_edma_handle, _flexio_i2c_master_handle, _flexio_i2s_dma_handle, _flexio_i2s_edma_handle, _flexio_i2s_handle, _flexio_mculcd_edma_handle, _flexio_mculcd_handle, _flexio_mculcd_smartdma_handle, _flexio_spi_master_dma_handle, _flexio_spi_master_edma_handle, _flexio_spi_master_handle, _flexio_uart_dma_handle, _flexio_uart_edma_handle, _flexio_uart_handle, _flexspi_dma_handle, _flexspi_edma_handle, _flexspi_handle, _lpi2c_master_edma_handle, _lpi2c_master_handle, _lpi2c_slave_handle, _lpspi_master_edma_handle, _lpspi_master_handle, _lpspi_slave_edma_handle, _lpspi_slave_handle, _lpuart_dma_handle, _lpuart_edma_handle, _lpuart_handle, _pdm_edma_handle, _pdm_handle, _pdm_sdma_handle, _sai_handle, _sai_sdma_handle, _spdif_edma_handle, _spdif_handle, _usdhc_handle, sai_edma_handle
users : rtems_bdbuf_group, rtems_rtl_obj
UserTrimming : OPAMP_InitTypeDef
USERType : FLASH_OBProgramInitTypeDef
uses : rtems_disk_device
useUnfilteredOutput : _acmp_config, _cmp_config
UTMI_CKTRIM : Utmi
UTMI_OHCIICR : Utmi
UVSIL : CAAM_Type
UVSOL : CAAM_Type