Compaq PCMCIA floppy driver on an IBM thinkpad (kernel 2.6.14)

David Hinds dhinds at sonic.net
Fri Feb 17 22:45:46 EST 2006


On Fri, Feb 17, 2006 at 05:21:51PM -0200, Daniel Vianna wrote:
> 
> Google finds me some documentation that suggests that it won't work with 
> other computer than the Compaq Contura Aero itself (because it depends 
> on its BIOS). I'm just not sure if it's the latest information. Ideas?

It won't work.  The Compaq laptop did some funny stuff behind the
scenes to configure the PCMCIA bridge to handle old-style ISA bus DMA
operations.  Implementation of ISA DMA on modern CardBus bridges is
spotty and not supported by the Linux PCMCIA subsystem.

-- Dave




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