Function esp_idf_svc::sys::esp_efuse_key_block_unused

source ยท 
pub unsafe extern "C" fn esp_efuse_key_block_unused(
    block: u32,
) -> bool
Expand description

@brief Returns true if the key block is unused, false otherwise.

An unused key block is all zero content, not read or write protected, and has purpose 0 (ESP_EFUSE_KEY_PURPOSE_USER)

@param block key block to check.

@return - True if key block is unused, - False if key block is used or the specified block index is not a key block.