Use PCMCIA instead of CardBus?

M. Warner Losh imp at
Thu May 12 01:59:46 PDT 2005

In message: <200505110913.31469.kirk at>
            Kirk Strauser <kirk at> writes:
: On Tuesday 10 May 2005 16:15, Warner Losh wrote:
: > I have no idea what you are asking for.
: Let me restate my original dilemma.  My laptop can only use my WLAN card 
: when it's configured as a 16-bit PCMCIA device and not as a 32-bit CardBus 
: device.

I have several such devices.

: In NetBSD, this can be accomplished by typing "boot -c" at its loader prompt 
: and typing "disable cbb*" to disable the cbb (CardBus) drivers, which 
: leaves the pcic (PCMCIA) drivers to correctly configure the card.  After 
: doing this, the card works exactly as hoped.

Why do you need to disable CardBus.  The bridge should automatically
detect that it is a R2 card (16-bit) and do the right thing.

: However, commenting out "device cbb" in my FreeBSD kernel results in a 
: non-working setup.  By that, I mean that the card's lights never flicker as 
: it's being inserted (as it would do under NetBSD and Linux when it's being 
: probed).  In fact, I get no debugging information at all, whether 
: from /var/log/messages or via dmesg. 
: Any ideas where I could go from here?

In addition to my earlier suggestion, you can enable 'hw.cbb.debug=1'
and 'hw.cardbus.debug=1' and 'hw.pccard.debug=1' and
'hw.pccard.cis_debug=1' for a much more chatty boot.  This won't solve
your problem, but will give me a clue about what might be going on.


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