spi_bus_free() function

Free a SPI bus @warning In order for this to succeed, all devices have to be removed first.

Syntax

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Summary

Declaration

Definition

from spi_common.h:170

esp_err_t spi_bus_free(spi_host_device_t host_id);

Implemented in spi_common.c:953

Arguments

Argument

Description

host_id

SPI peripheral to free

Return value

- ESP_ERR_INVALID_ARG if parameter is invalid - ESP_ERR_INVALID_STATE if bus hasn't been initialized before, or not all devices on the bus are freed - ESP_OK on success

Examples

spi_bus_free() is referenced by 18 libraries and example projects:

References

from examples

spi_bus_free() function

Syntax

Arguments

Return value

Examples

References

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