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

- i -

i : keccak_state_t
I : trickle_t
I1_CLICK : LIS2DH12_CTRL_REG3_t
I1_IA1 : LIS2DH12_CTRL_REG3_t
I1_IA2 : LIS2DH12_CTRL_REG3_t
I1_OVERRUN : LIS2DH12_CTRL_REG3_t
I1_WTM : LIS2DH12_CTRL_REG3_t
I1_ZYXDA : LIS2DH12_CTRL_REG3_t
I2_ACT : LIS2DH12_CTRL_REG6_t
I2_BOOT : LIS2DH12_CTRL_REG6_t
I2_CLICK : LIS2DH12_CTRL_REG6_t
I2_IA1 : LIS2DH12_CTRL_REG6_t
I2_IA2 : LIS2DH12_CTRL_REG6_t
i2c : ad7746_params, adcxx1c_params, ads101x_alert_params, ads101x_params, adxl345_params_t, at24cxxx_params, at30tse75x_t, bh1750fvi_params_t, bh1750fvi_t, bh1900nux_params_t, bh1900nux_t, bme680_intf_t, bmx055_params_t, bq2429x_params_t, ds1307_params_t, ds1307_t, ds75lx_params_t, ft5x06_params_t, fxos8700_params_t, hdc1000_params_t, hih6130_t, hm330x_params_t, hts221_params_t, i2c_conf_t, ina2xx_params_t, ina3221_params_t, isl29020_params_t, isl29125_params_t, jc42_params_t, jc42_t, l3g4200d_params_t, l3gxxxx_if_params_t, lis3mdl_params_t, lpsxxx_params_t, lsm303dlhc_params_t, lsm6dsxx_params_t, mag3110_params_t, mma7660_params_t, mma8x5x_params_t, mpl3115a2_params_t, mpu9x50_params_t, ph_oem_params, pn532_params_t, qmc5883l_params_t, qmc5883l_t, seesaw_soil_params_t, srf02_t, srf08_params_t, stmpe811_params_t, tcs37727_params_t, tmp00x_params_t
i2c_addr : aip31068_params_t, at24mac_params_t, bmp180_params_t, bmx280_params_t, ccs811_params_t, cst816s_params_t, hsc_params_t, lm75_params, opt3001_params_t, pca9633_params_t, pca9685_params_t, scd30_params_t, sdp3x_params_t, sht2x_params_t, sht3x_dev_t, sht3x_params_t, shtcx_params_t, tsl4531x_params_t, tsl4531x_t, vcnl40x0_params_t, vl6180x_params_t
i2c_bus : lm75_params
i2c_dev : aip31068_params_t, at24mac_params_t, bmp180_params_t, bmx280_params_t, ccs811_params_t, cst816s_params_t, hsc_params_t, opt3001_params_t, pca9633_params_t, pca9685_params_t, scd30_params_t, sdp3x_params_t, sgp30_params_t, sht2x_params_t, sht3x_dev_t, sht3x_params_t, shtcx_params_t, si1133_params_t, si1133_t, si114x_params_t, si70xx_params_t, sps30_params_t, tsl2561_params_t, tsl4531x_params_t, tsl4531x_t, vcnl40x0_params_t, veml6070_params_t, vl6180x_params_t
I2CCLKGDS : prcm_regs_t
I2CCLKGR : prcm_regs_t
I2CCLKGS : prcm_regs_t
I2SBCLKDIV : prcm_regs_t
I2SBCLKSEL : prcm_regs_t
I2SCLKCTL : prcm_regs_t
I2SCLKGDS : prcm_regs_t
I2SCLKGR : prcm_regs_t
I2SCLKGS : prcm_regs_t
I2SMCLKDIV : prcm_regs_t
I2SWCLKDIV : prcm_regs_t
I_MAP : cc2538_sys_ctrl_t
i_range : ina2xx_params_t
IA : LIS2DH12_CLICK_SRC_t
ia_id : dhcpv6_opt_ia_na_t, dhcpv6_opt_ia_pd_t
IBE : cc2538_gpio_t
IBRD : cc2538_uart_t, uart_regs_t
IC : cc2538_gpio_t
ICEPICK_DEVICE_ID : fcfg_regs_t
ichg : bq2429x_params_t
ICLR : gpt_reg_t
icon : ctap_rp_ent_t, ctap_user_ent_t
ICR : cc2538_gptimer_t, cc2538_ssi_t, cc2538_uart_t, mega_timer_t, uart_regs_t, wdt_regs_t
id : asymcute_topic, coap_hdr_t, congure_snd_ack_t, ctap_cred_id_t, ctap_resident_key, ctap_rp_ent_t, ctap_user_ent_t, dns_hdr_t, dynamixel_t, emcute_topic_t, feetech_t, gnrc_ipv6_ext_frag_rbuf_t, gnrc_ipv6_ext_frag_send_t, icmp_echo_t, icmpv6_echo_t, ipv4_hdr_t, ipv6_ext_frag_t, msg_bus_t, msp430_usci_params_t, nfc_iso14443a_t, ppp_hdr_t, psa_key_attributes_s, psk_params_t, spi_conf_t
id_ch0 : timer_conf_t
id_cnt : ctap_state_t
id_len : ctap_rp_ent_t, ctap_user_ent_t, nfc_iso14443a_t
identifier : suit_component_t
idle_seq : kw41zrf_t
idle_state : at86rf2xx_t, kw2xrf_t, nrf24l01p_ng
idx : tpcon, turo, usb_descriptor_configuration_t, usb_descriptor_interface_association_t, usb_descriptor_interface_t, usbus_interface, usbus_string
IE : cc2538_gpio_t, msp430_port_p1_p2_t, msp430_usart_sfr_t
IEEE_BLE_0 : ccfg_regs_t
IEEE_BLE_1 : ccfg_regs_t
IEEE_MAC_0 : ccfg_regs_t
IEEE_MAC_1 : ccfg_regs_t
IES : msp430_port_p1_p2_t
IEV : cc2538_gpio_t
if_params : l3gxxxx_params_t
if_pid : gnrc_netif_hdr_t
iface : gnrc_ipv6_nib_ft_t, gnrc_ipv6_nib_pl_t, lwext4_desc_t, usbus, usbus_dfu_device, usbus_handler, usbus_hid_device, usbus_msc_device
iface_ctrl : usbus_cdcacm_device, usbus_cdcecm_device
iface_data : usbus_cdcacm_device, usbus_cdcecm_device
iface_data_alt : usbus_cdcecm_device
iface_id : fib_entry_t
IFG : msp430_port_p1_p2_t, msp430_usart_sfr_t
IFLS : cc2538_uart_t, uart_regs_t
ifnum : can_reg_entry, candev_dev, conn_can_isotp_master, conn_can_isotp_slave, conn_can_raw
ifsel : bme680_params_t
iid : dhcpv6_opt_iid_t
iled_level : gp2y10xx_params_t
iled_pin : gp2y10xx_params_t
ilim : bq2429x_params_t
ILLEGAL_COMMAND : sdmmc_card_status_t
ILPR : cc2538_uart_t
IM : cc2538_ssi_t, cc2538_uart_t
IMAGE_VALID_CONF : ccfg_regs_t
Imax : trickle_t
Imin : trickle_t
IMR : cc2538_gptimer_t, gpt_reg_t
IMSC : uart_regs_t
IN : msp430_port_p7_p8_t, msp430_port_t
in : pcf857x_t, stm32_usbdev_fs_t, usbdev_mock, usbus_control_handler_t
in_buf : usbus_cdcacm_device, usbus_control_handler_t, usbus_hid_device, usbus_msc_device
in_flight_size : congure_quic_snd_t, congure_reno_snd
in_lock : usbus_hid_device
in_mode : dcf77_params_t, dht_params_t, ds18_params_t
inbuf : ethos_t
inc_m : pll_cfg_t
inc_n : pll_cfg_t
inc_p : pll_cfg_t
inc_q : pll_cfg_t
index : eui48_conf_t, eui64_conf_t, loramac_channel_t, lorawan_buffer_t, pwm_chan_conf_t, sha256_chain_idx_elm_t, usb_setup_t
info : _nib_onl_entry, cb_mux, gnrc_ipv6_nib_nc_t
INFRCLKDIVDS : prcm_regs_t
INFRCLKDIVR : prcm_regs_t
INFRCLKDIVS : prcm_regs_t
init : auto_init_module_t, candev_driver, cipher_interface_st, congure_snd_driver, ctap_hid_pkt_t, gnrc_netif_ops, gnrc_rpl_of_t, lcd_driver, lcd_ll_par_driver_t, mtd_desc, mtd_mapper_parent_t, netdev_driver, rtt_hw_driver_t, sdmmc_driver_t, suit_storage_driver, trx_driver, uart_half_duplex_dir_t, usbdev_driver, usbus_handler_driver
init_args : congure_mock_snd_t
init_calls : congure_mock_snd_t
init_cb : netdev_test_t
init_done : mtd_emulated_t, sdcard_spi_t, sdmmc_dev
init_executed : pthread_once_t
init_mss : congure_reno_snd_consts_t
init_rtt : congure_quic_snd_consts_t
init_ssthresh : congure_reno_snd_consts_t
init_state : gomach
init_wnd : congure_quic_snd_consts_t
initial : mcp47xx_saul_dac_params_t, pca9685_saul_pwm_params_t
initial_value : gpio_conf_esp32, gpio_conf_gd32v, gpio_conf_minimal, gpio_conf_nrf5x, gpio_conf_sam0, gpio_conf_stm32
initialized : adt7310_t, dsme::DSMEPlatform
initialized_marker : ctap_state_t, gnrc_lorawan_persistent_state_t
inner_hash : sha1_context
input_enable : gpio_pad_ctrl_t
input_override : gpio_io_ctrl_t
inputctrl : adc_conf_chan_t
inst_id : nimble_rpble_ctx_t
install : suit_storage_driver
instance : dsme::DSMEPlatform, skald_eddystone_uid_t
instance_id : gnrc_rpl_dao_ack_t, gnrc_rpl_dao_t, gnrc_rpl_dio_t, gnrc_rpl_internal_opt_dis_solicited_t, gnrc_rpl_opt_dis_solicited_t, gnrc_rpl_p2p_dro_ack_t, gnrc_rpl_p2p_dro_t, lwm2m_obj_ipso_sensor_base_args
instr : pio_sm_ctrl_regs
instr_numof : pio_program_t
int1 : adxl345_params_t, l3g4200d_params_t, lis3dh_params_t
int1_cfg : l3gxxxx_params_t
INT1_enable : lis2dh12_highpass_t
int1_pin : bmx055_params_t, l3gxxxx_params_t, lis2dh12_params_t
int2 : adxl345_params_t, l3g4200d_params_t, lis3dh_params_t
INT2_enable : lis2dh12_highpass_t
int2_pin : bmx055_params_t, l3gxxxx_params_t, lis2dh12_params_t
INT_CAUS : wdt_regs_t
int_cfg : vl6180x_params_t
int_config : lis2dh12_int_params_t
int_drive : itg320x_params_t
int_duration : lis2dh12_int_params_t
int_level : itg320x_params_t
int_lock : l3gxxxx_t
int_lvl : i2c_conf_t, timer_conf_t
int_mode : ccs811_params_t
int_pin : apds99xx_params_t, at86rf215_params, at86rf2xx_params, ata8520e_params_t, candev_mcp2515_conf, ccs811_params_t, enc28j60_params_t, encx24j600_params_t, encx24j600_t, ft5x06_params_t, itg320x_params_t, kw2xrf_params, mrf24j40_params, pcf857x_params_t, sam0_common_gmac_config_t, stmpe811_params_t, vl6180x_params_t
INT_POLARITY : LIS2DH12_CTRL_REG6_t
int_size : xbee_t
int_state : rn2xx3_t, xbee_t
int_thresh : vl6180x_params_t
int_threshold : lis2dh12_int_params_t
int_type : l3gxxxx_t, lis2dh12_int_params_t
intbase : timer_conf_t
integration : tsl2561_params_t
integration_time : tsl4531x_params_t, tsl4531x_t
inter_msg_interval : congure_snd_driver
inter_msg_interval_args : congure_mock_snd_t
inter_msg_interval_calls : congure_mock_snd_t
inter_msg_interval_denominator : congure_quic_snd_consts_t
inter_msg_interval_numerator : congure_quic_snd_consts_t
interface : cipher_t
interface_count : usb_descriptor_interface_association_t
interface_name : candev_conf
interface_num : usb_descriptor_interface_t
interface_version : someip_hdr_t
internal : psa_se_drv_data_s
internal_state : ata8520e_t, dcf77
internal_temperature : max31855_data_t
interrupt : adxl345_t, ltc4150_params_t
interrupt_enable : msp430_usci_params_t
interrupt_flag : msp430_usci_params_t
interrupt_pin : ph_oem_params
interval : usb_descriptor_endpoint_t, usbus_endpoint, ztimer_periodic_t
intf : bme680_params_t, bme680_t
ints : gnrc_sixlowpan_frag_rb_base_t
inv : pca9685_params_t
inverted : lcd_params_t, pcd8544_t
io : pio_gpio_init_t
IO0PSEL : aux_aiodio_regs_t
IO1PSEL : aux_aiodio_regs_t
IO2PSEL : aux_aiodio_regs_t
IO3PSEL : aux_aiodio_regs_t
IO4PSEL : aux_aiodio_regs_t
IO5PSEL : aux_aiodio_regs_t
IO6PSEL : aux_aiodio_regs_t
IO7PSEL : aux_aiodio_regs_t
IO_DIV : cc2538_sys_ctrl_t
IOCLATCH : aon_ioc_regs_t
IOCONF : fcfg_regs_t
iol_base : iolist
iol_len : iolist
iol_next : iolist
IOMODE : aux_aiodio_regs_t
IOMODEH : aux_aiodio_regs_t
IOMODEL : aux_aiodio_regs_t
IOPOE : aux_aiodio_regs_t
IOSTRMAX : aon_ioc_regs_t
IOSTRMED : aon_ioc_regs_t
IOSTRMIN : aon_ioc_regs_t
iov_base : iovec
iov_len : iovec
ipv4 : _sock_tl_ep, sock_ip_ep_t
ipv4_u32 : _sock_tl_ep, sock_ip_ep_t
ipv6 : _nib_onl_entry, _sock_tl_ep, gnrc_ipv6_ext_frag_rbuf_t, gnrc_ipv6_nib_nc_t, gnrc_netif_t, gnrc_tcp_ep_t, sock_ip_ep_t
ipv6addr : uri_parser_result_t
ipv6addr_len : uri_parser_result_t
ipv6mr_interface : ipv6_mreq
ipv6mr_multiaddr : ipv6_mreq
IRND : cc2538_rfcore_t
irq : cst816s_params_t, i2c_conf_t, nrf24l01p_t, pio_i2c_conf_t, pn532_params_t, pwm_conf_t, spi_dev_t, sx127x_t, tc32_conf_t, timer_conf_t, uart_conf_t, w5500_params_t
IRQ_DETECT_ACK : cc2538_gpio_t
IRQ_DETECT_UNMASK : cc2538_gpio_t
irq_event : pcf857x_t
irq_flags : timer_conf_t
irq_flank : cst816s_params_t
irq_handler : bhp
irq_option : ph_oem_params
irq_override : gpio_io_ctrl_t
irq_pin : atwinc15x0_params_t, sdp3x_params_t
irq_prio : i2c_conf_t
irq_prio_rx : uart_conf_t
irq_rx : uart_conf_t
irqn : dwc2_usb_otg_fshs_config_t, i2c_conf_t, qdec_conf_t, stm32_usbdev_fs_config_t, timer_channel_conf_t, timer_conf_t, uart_conf_t
irqn0 : pio_conf_t
irqn1 : pio_conf_t
IRRCTL : msp430_usci_a_t
irs : sock_tcp
IRTCTL : msp430_usci_a_t
IS : cc2538_gpio_t
is_bootstrap : lwm2m_obj_security_args
is_crc_enabled : sht2x_params_t
is_full : candev_stm32_rx_fifo
is_initialized : pthread_once_t
is_last_cad_success : sx127x_internal_t
is_writer : __pthread_rwlock_waiter_node_t
isotp : conn_can_isotp_master, conn_can_isotp_slave
isr : apds99xx_t, candev_driver, debugpins_config, netdev_driver, pcf857x_t
isr_arg : apds99xx_t, candev
isr_cb : netdev_test_t
isr_div : itg320x_params_t
isr_flags : can, netdev_ieee802154_submac_t
isr_num : uart_conf_t
isr_rx : candev_stm32_isr
isr_signal : cc110x_t
isr_tx : candev_stm32_isr
isr_wkup : candev_stm32_isr
ISRC : adi_4_aux_regs_m8_t, adi_4_aux_regs_t
ISRCCTL : aux_anaif_regs_t
isrpipe : at_dev_t, ir_nec_t
isrpipe_buf : ir_nec_t
iss : sock_tcp
itime : veml6070_params_t
itvl : nimble_netif_conn_t
itvl_ms : nimble_scanner_cfg_t
iv_required : psa_cipher_operation_s
iv_set : psa_cipher_operation_s
IWE : cc2538_sys_ctrl_t