what does zephyr spi_config structure variable slave indicate?

what does zephyr spi_config structure variable slave indicate?https://devzone.nordicsemi.com/f/nordic-q-a/83966/what-does-zephyr-spi_config-structure-variable-slave-indicateHi all, struct spi_config { uint32_t frequency ; uint16_t operation ; uint16_t slave ; const struct spi_cs_control * cs ; }; in documentation, it says " @param slave is the slave number from 0 to host controller slave limit." whichen-USTelligent Community 13Mon, 24 Jan 2022 13:01:24 GMTRE: what does zephyr spi_config structure variable slave indicate?https://devzone.nordicsemi.com/thread/349261?ContentTypeID=1Mon, 24 Jan 2022 13:01:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d798186c-fff6-4542-9711-1773b55d98d4Håkon Alseth<p>Hi,</p> <p> </p> <p>Zephyr has generic APIs to ensure support for different devices, architectures, and so forth. Not all of the parameters will be used by nRF devices.</p> <p>In SPI mode, this is not used with our devices. Addressing of slaves is done using a dedicated /CS pin.</p> <p> </p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>