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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2021/11/26 14:56:27 UTC

[GitHub] [incubator-nuttx] davids5 commented on pull request #4900: Add Board IOCTL for DMA buffer allocation

davids5 commented on pull request #4900:
URL: https://github.com/apache/incubator-nuttx/pull/4900#issuecomment-980039508


   > Why not use some bounce buffer in SDMMC driver or switch to PIO mode to migrate the hardware limitation? You can't fix all location which access SD or EMMC card.
   
    The FAT already has a mechanism for this. Performance and wasting resources.
   
   How would you envision the bounce buffer implementation usage? Would it take more resources?


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