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SPI: Document TIMEOUT return values 

`spi_device_queue_trans` and `spi_device_get_trans_result` can return `ESP_ERR_TIMEOUT` – but this had not been documented.

Merges https://github.com/espressif/esp-idf/pull/1243
pull/1249/merge
Raphael Luba 2017-11-08 13:36:37 +01:00 zatwierdzone przez Angus Gratton
rodzic ad8ebe5b63
commit 31711b5ac7
1 zmienionych plików z 2 dodań i 0 usunięć
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components/driver/include/driver/spi_master.h
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@ -184,6 +184,7 @@ esp_err_t spi_bus_remove_device(spi_device_handle_t handle);
* never time out.
* @return
* - ESP_ERR_INVALID_ARG if parameter is invalid
* - ESP_ERR_TIMEOUT if there was no room in the queue before ticks_to_wait expired
* - ESP_OK on success
*/
esp_err_t spi_device_queue_trans(spi_device_handle_t handle, spi_transaction_t *trans_desc, TickType_t ticks_to_wait);
@ -205,6 +206,7 @@ esp_err_t spi_device_queue_trans(spi_device_handle_t handle, spi_transaction_t *
out.
* @return
* - ESP_ERR_INVALID_ARG if parameter is invalid
* - ESP_ERR_TIMEOUT if there was no completed transaction before ticks_to_wait expired
* - ESP_OK on success
*/
esp_err_t spi_device_get_trans_result(spi_device_handle_t handle, spi_transaction_t **trans_desc, TickType_t ticks_to_wait);