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spi_slave_get_trans_result() function
Get the result of a SPI transaction queued earlier This routine will wait until a transaction to the given device (queued earlier with spi_slave_queue_trans) has successfully completed. It will then return the description of the completed transaction so software can inspect the result and e.g. free the memory or reuse the buffers. It is mandatory to eventually use this function for any transaction queued by ``spi_slave_queue_trans``.
Syntax
esp_err_t spi_slave_get_trans_result(spi_host_device_t host,
spi_slave_transaction_t **trans_desc,
TickType_t ticks_to_wait);
Implemented in ![]()
spi_slave.c:492
Return value
- ESP_ERR_INVALID_ARG if parameter is invalid - ESP_ERR_NOT_SUPPORTED if flag `SPI_SLAVE_NO_RETURN_RESULT` is set - ESP_OK on success
References
Code
Location
Referrer
Call Tree
spi_slave_get_trans_result() is called by 1 function and calls 5 functions:
Data Use
spi_slave_get_trans_result() reads 11 variables: