--- title: "libogc‑rice" url: "https://maker.wiznet.io/Aimee0/projects/libogcrice/" markdown_url: "https://maker.wiznet.io/Aimee0/projects/libogcrice/md" type: "UCC: User Created Content" author: "Aimee" author_url: "https://maker.wiznet.io/Aimee0/" original_author: "aimee" original_url: "https://github.com/extremscorner/libogc-rice/tree/master" published: "2025-08-06" language: "en" likes: 0 views: 1337 comments: 1 source: "WIZnet Makers (https://maker.wiznet.io/)" --- # libogc‑rice > libogc-rice is a devkitRice-specific fork of libogc, providing GameCube/Wii hardware access such as file I/O, networking, controllers, and memory cards. Original author: aimee (source: https://github.com/extremscorner/libogc-rice/tree/master) ## Article ### Overview **libogc-rice** is a fork of the existing GameCube/Wii C library **libogc**, adapted for **devkitRice**, providing access to various hardware functions such as file I/O, networking, controllers, and memory cards on GameCube and Wii. This project focuses on extending the network capabilities of retro consoles by integrating WIZnet iEthernet chips. --- ### Key Features - **Unified Hardware Access**: Offers a single API for I/O with multiple devices such as memory cards, optical drives, and controllers, while supporting a stable build environment through devkitRice. - **Network Stack**: Provides lwIP-based networking functionality, allowing **W5500**, **W6100**, and **W6300** WIZnet chips to be used as network interfaces instead of the previously limited ENC28J60 Broadband Adapter. Supports various protocols such as TCP/UDP and IPv4/IPv6, enabling file transfers, game updates, and more. - **Open-source Development Platform**: Designed in C language, and when used with the ioLibrary driver, makes WIZnet chip control straightforward. The source code is publicly available on GitHub, enabling anyone to modify and contribute. - **Expandable Applications**: Beyond game loading, it can be used for online multiplayer in homebrew games, as an IoT gateway using retro consoles, or for network-based memory card backups, opening the door to new ideas. --- ### WIZnet Chips Used and Features - **W5500**: A hardware TCP/IP stack chip connecting to an external MCU via SPI interface, with 8 independent sockets and 32KB buffer. Integrates a 10/100 Ethernet MAC/PHY, making it easy to add Internet functionality. - **W6100**: An enhanced version of W5500 with IPv6 support, featuring a dual IPv4/IPv6 stack, 8 sockets, 32KB buffer, integrated 10Base-T/100Base-TX PHY, and low-power mode. Enables IPv6 network experiments even on the GameCube. - **W6300**: A high-performance TCP/IP offload engine chip with a 150 MHz system clock and QSPI interface, delivering over 90 Mbps network performance. Supports 64KB buffer and 8 sockets, making it ideal for high-speed applications such as screen streaming or large data transfers. --- ### What’s New from WIZnet’s Perspective - **Integration into the standard networking library of retro consoles**: W6100/W6300 chips enable IPv6 networking on GameCube/Wii, providing a testbed for next-generation Internet environments. - **Broadband Adapter Replacement**: By directly connecting chips such as W5500 to retro consoles, the need for dedicated adapters is removed, reducing cost and complexity and making it more accessible to the user community. - **Improved Development Productivity**: Using ioLibrary drivers and the devkitRice toolchain shortens network firmware development time and allows for rapid testing of new C-based features. - **Innovative Application Ideas**: Utilizing W6300’s high bandwidth and QSPI interface to turn the GameCube into a network media player, or experimenting with IPv6 tunneling on W6100, enables groundbreaking projects. --- This project demonstrates the synergy between retro console hardware and WIZnet iEthernet chips, and is expected to inspire more application cases in the open-source community. **Project link**: --- Source: https://maker.wiznet.io/Aimee0/projects/libogcrice/