essl_sdio_read_reg() function

Read general purpose R/W registers (8-bit) of an ESSL SDIO slave.

Syntax

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Summary

Declaration

Definition

esp_err_t essl_sdio_read_reg(void *arg, uint8_t add, uint8_t *value_o, uint32_t wait_ms);

Argument

Description

arg

Context of the component.

add

Address of register to read. Valid address: 0-27, 32-63 (28-31 reserved, return interrupt bits on read).

value_o

wait_ms

Time to wait before timeout, in ms.

- ESP_OK Success - ESP_ERR_INVALID_ARG Address not valid. - One of the error codes from SDMMC host controller

from examples