Function esp_idf_svc::hal::sys::esp_ble_gattc_read_char_descr

pub unsafe extern "C" fn esp_ble_gattc_read_char_descr(
    gattc_if: u8,
    conn_id: u16,
    handle: u16,
    auth_req: u32,
) -> i32

@brief This function is called to read a characteristics descriptor.

@param[in] gattc_if: Gatt client access interface. @param[in] conn_id : connection ID. @param[in] handle : descriptor handle to read. @param[in] auth_req : authenticate request type

@return - ESP_OK: success - other: failed