*BSD News Article 11616


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From: brad@i88.isc.com (Bradley Bosch)
Subject: PCMCIA modem/ethernet under Linux?
Message-ID: <1993Feb20.193340.19155@i88.isc.com>
Summary: Can PCMCIA modem or ethernet be used under Linux?
Keywords: Linux, PCMCIA, modem, ethernet, driver, notebook
Sender: usenet@i88.isc.com (Usenet News)
Nntp-Posting-Host: tiny.i88.isc.com
Organization: INTERACTIVE Systems Corporation, Naperville, IL
Date: Sat, 20 Feb 1993 19:33:40 GMT
Lines: 40

Is anyone working on a Linux device driver for any PCMCIA devices?  I
am interested in the feasibility of using high speed modems and/or
Ethernet PCMCIA cards in a laptop running Linux or perhaps 386bsd.  I
would be willing to develop support for these devices my self, but so
far I know nothing about PCMCIA.  Is it even reasonable to expect to
be able to support PCMCIA devices under Linux?

After checking with the PCMCIA Consortium and learning that a basic
set of documentation on the standard will cost $250, I decided a query
here would be in order.  Here are some questions.  Do PCMCIA modems
appear to software as serial hardware the same as normal internal
modems?  Can random software that expects to work with the hardware
directly, work with these modems?  Is there a place I can learn more
about how software deals with PCMCIA devices without spending $$$ for
standards docs?

The reason I am asking is, after searching for months for a reasonably
priced notebook computer with a good screen, keyboard, and large disk
and memory capacity, I have discovered the AST Power Exec 486SL/25
which seems to meet most of my requirements.  This systems has two
PCMCIA slots, but no internal modem or Ethernet options except via
PCMCIA cards.  I would also be interested in hearing from anyone with
experience running Linux on this notebook.

When I called AST to ask about the availability of programming
information for their PCMCIA cards, I was told that they wouldn't be
able to tell me anything about the hardware except that they followed
PCMCIA standards.  They also mentioned ODI and NDSI and said that this
should give me enough info to program the devices, but it wasn't clear
if these were separate hardware or software standards or part of
PCMCIA.  Are there any PCMCIA vendors which might be more willing to
assist with developing Linux or 386bsd support?


Thanks for any info you can provide.

--Brad

Brad Bosch
brad@i88.isc.com