[uClinux-dev] Freescale's MCDMAAPI vs. Generic Linux DMA API on Coldfire MCF548x

[Greg Ungerer]

Hi markus,

Markus Franke wrote:
> Zitat von Greg Ungerer <gerg at snapgear.com>:
>> As a general rule you want to follow the way Linux does things.
>> This is especially true for modern versions of the kernel (2.6.x),
>> and especially if you want the code to be acceptable for main
>> line inclusion.
> 
> apart from <LINUX/Documentation/DMA-API.txt>, is there any further 
> documentation about the linux DMA subsystem available. LDD3 also talks 

As far as I am aware that is all there is. Look at the code
for other architectures as an example as well.


> more about the usage of the Generic DMA Layer, rather than saying 
> something about how to connect your target specific DMA code to the DMA 
> core. I am especially interested in the function stubs/macros one need 
> to provide to the Linux DMA Layer.

The code for other architectures will probably provide the
best example of what to do.

Regards
Greg



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