[ltp] TP-21 Cardbus Problems?

[Tom Rockwell]

You seem to have a 16bit card.  Regular PC cards are 16 bit (like ISA 
cards in desktops), Cardbus PC cards are 32 bit (like PCI desktop 
cards).  I think the comparison to ISA/PCI carries over to how the 
interrupts work also.

A 16 bit PC card can not max out a 100Mb ethernet line.  I'm not sure 
how the bandwidth math goes.  I thought ISA was 16 bits wide at 8.3 MHz, 
but that gives a max of 16 MB/s.  Maybe the ISA bus is just really 
inefficient.

http://support.3com.com/infodeli/tools/nic/pccards.htm


-Tom



Friedemann Baitinger wrote:

>-----BEGIN PGP SIGNED MESSAGE-----
>Hash: SHA1
>
>On 6 Aug 2001, Rob Mayoff wrote:
>
>>Make sure you have CardBus support enabled in the PCMCIA configuration.
>>It's a compile-time option.  Make sure your PCMCIA card supports
>>CardBus.
>>
>
>I'm running the linux-2.4.2 binary that came with RH 7.1 (have done
>hundrets of kernel configs/compiles before, am now tired of it) quick
>grep shows:
>
>kernel-2.4.2-i386-BOOT.config:CONFIG_CARDBUS=y
>kernel-2.4.2-i386.config:CONFIG_CARDBUS=y
>kernel-2.4.2-i386-smp.config:CONFIG_CARDBUS=y
>kernel-2.4.2-i586.config:CONFIG_CARDBUS=y
>kernel-2.4.2-i586-smp.config:CONFIG_CARDBUS=y
>kernel-2.4.2-i686.config:CONFIG_CARDBUS=y
>kernel-2.4.2-i686-enterprise.config:CONFIG_CARDBUS=y
>kernel-2.4.2-i686-smp.config:CONFIG_CARDBUS=y
>
>The card has "PC Card" printed on the back. Will check this card on
>another notebook with Windows tomorrow.
>
>>+---------- On Aug 6, Friedemann Baitinger said:
>>
>>>Are there any hidden switches/options to tweak in order to get
>>>reasonable performance through the PC-Card slot?
>>>
>>
>>----- The Linux ThinkPad mailing list -----
>>The linux-thinkpad mailing list home page is at:
>>http://www.bm-soft.com/~bm/tp_mailing.html
>>
>
>- -- 
>Friedemann Baitinger      fb@baiti.net       http://baiti.net/fb/
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