Structures syntax

Hi everyone!! Could someone explain me the structure below? I know about structures and their syntax but first time I see something like this. It's like accesing the members inside the structure.. This is a convinient way to access multiple member at once?

By the way the nrf_qspi_cinstr_conf_t is typedef struct.

Code:

---

nrf_qspi_cinstr_conf_t cinstr_cfg = {
        .opcode    = QSPI_STD_CMD_RSTEN,
        .length    = NRF_QSPI_CINSTR_LEN_1B,
        .io2_level = true,
        .io3_level = true,
        .wipwait  = true,
        .wren      = true
    };

---

This is not a way to access the members, but to initialise them by name.