Messages in this thread | | | Date | Thu, 17 Feb 2000 11:17:50 -0800 | From | David Hinds <> | Subject | Re: PCMCIA still doesn't work for 2.3.46-pre2 |
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> I second the motion. I'd also like a way of probing to check. I don't > like having to rely on the word of the bloke at the markets I bought > it from.
The "cardctl status" command says whether cards are CardBus or 16-bit.
Someone else suggested checking the "keys" on the PCMCIA connector. These are keyed to the voltage(s) supported by the card. The vast majority of 16-bit cards are keyed for 5V, and all CardBus cards are currently keyed for 3.3V. But the voltage keys aren't 100% reliable, because 16-bit cards with 3.3V keys do exist.
There's another easy way to distinguish CardBus cards. All CardBus cards have a row of eight sharp dimples on the top of the card along the edge that has the CardBus connector. These are part of the spec, and connect to a ground plate in the CardBus socket.
The Xircom REM56G is a 16-bit card, even though it is 10/100. At 100baseT, it will be faster than 10baseT, but that's about all you can say about it. The best performance I've seen from a 16-bit card at 100baseT is about 1.5 MB/sec.
-- Dave
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