1-Wire File Structure

Abstract: This application note discusses the 1-Wire® File Structure (OWFS). The OWFS provides a directory structure for data residing in 1-Wire devices including iButtons. It allows named files to be randomly accessed as they are on other file systems. This document provides the full specification including bitmap files for large capacity 1-Wire devices, multiple subdirectories, extended file attributes, and other useful constructs such as files spanning multiple devices.
1-Wire File Structure
Jul 11, 2001

Abstract: This application note discusses the 1-Wire File Structure (OWFS). The OWFS provides a directory structure for data residing
in 1-Wire devices includingiButtons. It allows named files to be randomly accessed as they are on other file systems. This document
provides the full specification including bitmap files for large capacity 1-Wire devices, multiple subdirectories, extended file attributes, and
other useful constructs such as files spanning multiple devices.


I. 1-Wire File Structure
The 1-Wire File Structure (OWFS) provides a directory structure for data residing in 1-Wire devices includingiButtons. It allows named
files to be randomly accessed as they are on other file systems. This document provides the full specification including bitma