vortex eeprom

christophe barbé
2002-04-08T15:12:42Z

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I am trying to understand the vortex driver.
I believe that I am not looking at the correct documentation.

I read The following doc :

PCI/EISA Bus-Master Adaptater Driver Technical Reference
Members of the 3Com EtherLink III and Fast Etherlink families of adapters
Manual Part Number 09-0681-001B

The reason I believe there is a better doc is that the driver read info1
and info2 fields from the EEPROM and then does :

if (vp->info1 & 0x8000) {
vp->full_duplex = 1;
if (print_info)
printk(KERN_INFO "Full duplex capable\n");
}

...

if (print_info) {
printk(KERN_INFO " Enabling bus-master transmits and %s receives.\n",
(vp->info2 & 1) ? "early" : "whole-frame" );
}

But in my doc both these bits are marked 'reserved'.

I understand that these bits could be defined in more recent chipset but
in the doc I am looking at the full duplex capability is defined in
another field in the EEPROM:

Capabilities Word (offset 0x10) : supportsFullDuplex bit (bit 1)

Christophe

--
Christophe Barbé <christophe.barbe@ufies.org>
GnuPG FingerPrint: E0F6 FADF 2A5C F072 6AF8 F67A 8F45 2F1E D72C B41E

Ce que l'on conçoit bien s'énonce clairement,
Et les mots pour le dire arrivent aisément.
Nicolas Boileau, L'Art poétique

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