2011-01-02 09:42:02 Howto userspace apps DMA

Mike Allsworth (SOUTH AFRICA)

Message: 97124

Hi All,

How do I use the DMA API (as per bfin_dma_5xx.c) from a user app. Should I build a driver to handle all the DMA-stuff in the kernel, where all the includes etc. are easily available, or would a library be better. If a driver, how to expose the functions to the user, If a library is better, how to generate it - a lot of files! Any advise appreciated, please.

Regards, Mike

BF537-STAMP, uClinux 2.6.28.10-ADI-2009R1.1

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2011-01-02 12:39:46 Re: Howto userspace apps DMA

Mike Frysinger (UNITED STATES)

Message: 97126

please read the documentation:

docs.blackfin.uclinux.org/doku.php?id=linux-kernel:drivers:bfin-dma

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2011-01-03 09:48:18 Re: Howto userspace apps DMA

Mike Allsworth (SOUTH AFRICA)

Message: 97139