Programming manual - where?

[Donald Becker]

On Tue, 2 Nov 1999, Dan Oelke wrote:

> I have a need to hack the driver for a specialized application 
> using the 3c905B-FX card.  *Hopefully* the card will do what
> I want it to - but I need to see a register map first.  

Remeber that the driver is licensed under the GPL, and may only be used with
GPL OSes.

> In case anyone knows - is there a way to turn off the 
> transmitter completely - so the fiber goes completely dark,
> under software control?

This is under the control of the MII transceiver.
Run 'mii-diag' (or just look at the board) to find the transceiver type.

You may be able to do this by modifying mii-diag, without understanding the
driver or modifying the kernel.

> Where or how do I get hold of a copy of the programming manual
> for these cards? Searching 3com's web site has not worked for me.  

Ask 3Com.  You have to sign a NDA for pre-release/draft manual versions.

Donald Becker
Scyld Computing Corporation, and
USRA-CESDIS,   becker@cesdis.gsfc.nasa.gov