Function esp_idf_svc::sys::esp_efuse_set_read_protect

source ยท 
pub unsafe extern "C" fn esp_efuse_set_read_protect(blk: u32) -> i32
Expand description

@brief Sets a read protection for the whole block.

After that, it is impossible to read from this block. The read protection does not apply to block 0. @param[in] blk Block number of eFuse. (EFUSE_BLK1, EFUSE_BLK2 and EFUSE_BLK3)

@return

  • ESP_OK: The operation was successfully completed.
  • ESP_ERR_INVALID_ARG: Error in the passed arguments.
  • ESP_ERR_EFUSE_CNT_IS_FULL: Not all requested cnt bits is set.
  • ESP_ERR_NOT_SUPPORTED: The block does not support this command.