Open source EtherY on sourceforge.netBy Chris Williams. Published: 17th Aug 2003, 15:07:09 | Permalink | Printable
Secrets of the DCI4 unlocked, new drivers plannedTheo Markettos has opened a sourceforge.net hosted project for an open source RISC OS DCI4 networking driver. The work is based on Castle's EtherY driver for their 10/100Mbit ethernet podules. The EtherY driver was quietly sneaked out into the public under the GPL by Castle earlier in the year.
In March, there was some fuss over the DCI4 specification when developers called for the specification to be made public. The DCI4 specification is confidential due to security concerns, however Theo's project ought to provide enough material for developers to create suitable drivers for ethernet devices.
"I'm working on porting EtherY to the CS8900 on my A4 ethernet card", Theo informed drobe.co.uk.
"At the moment I'm trying to work out the best way to do this - borrowing source from FreeBSD seems the best way so far. I'm also thinking how to generalise it to make such ports easier - but any driver is going to need substantial modification when porting.
"In general, the idea is to open up the EtherY sources for others to contribute to or make use of. Anyone else is welcome to join the development or start another branch for other targets - I think development is going to be more along the bramble model (lots of sideways branches going in different directions) than the traditional Scot's Pine model (straight up) at least initially, perhaps unifying later."
We can't stress enough how RISC OS needs device drivers to take advantage of newer hardware and Theo's project should aid anyone wishing to port ethernet drivers to RISC OS. Currently the SMSC LAN91C111 chipset is supported and a port is "underway" for the Cirrus Logic CS89x0 series. The project's source code can be downloaded via CVS.
Open source DCI4 driver development
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