essl_wait_for_ready() function
Wait for interrupt of an ESSL slave device.
Arguments
handle
Handle of an ESSL device.
wait_ms
Millisecond to wait before timeout, will not wait at all if set to 0-9.
Return value
- ESP_OK: If success - ESP_ERR_NOT_SUPPORTED: Current device does not support this function. - One of the error codes from SDMMC host controller