Re: RBEM56G-100 card

Ion Badulescu (ionut@moisil.cs.columbia.edu)
Sun, 5 Aug 2001 15:30:37 -0400


On Fri, 3 Aug 2001 11:08:44 -0700 (PDT), Manolis Perakakis <perakakis@yahoo.com> wrote:

> see :
> http://pcmcia-cs.sourceforge.net/ftp/SUPPORTED.CARDS
> [ Not recommended: support is experimental and
> unreliable ]
> IBM EtherJet CardBus with 56K Modem
> Xircom RBEM56G-100BTX, CBEM56G-100BTX, R2BEM56G-100
>
> The same is stated at Xircom's Linux Page
> http://www.xircom.com/cda/page/0,1298,0-0-1_20-476,00.html
>
> So, would you still recomend the purchase of such a
> card? (I wouldn't hesitate for REM56G-100BTX but
> laptop comes with RBEM56G allready!)

Not really. The card works all right with my latest development
driver (not yet in 2.4.x), but *only* in half-duplex mode. We
don't have enough information to make full-duplex work correctly.

The card also has a rather suboptimal design. It accepts only
32-bit aligned buffers for Tx, which forces the driver to memcpy
all the Tx packets into new (and properly aligned) buffers.

So, basically, avoid this card if you have a choice.

Ion

-- 
  It is better to keep your mouth shut and be thought a fool,
            than to open it and remove all doubt.
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