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Add support for DMA memory allocator to FAT file system

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git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@5127 7fd9a85b-ad96-42d3-883c-3090e2eb8679
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patacongo
2012-09-11 13:53:44 +00:00
parent de7764b1d4
commit 648420e67a
7 changed files with 92 additions and 12 deletions
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nuttx/ChangeLog
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@@ -3309,4 +3309,10 @@
by Kate).
* arch/avr/src: Fixes from AVR32 build errors that have crept in
over the time; incorporated Kconfig for AVR3 (Richard Cochran).
* fs/fat and include/nuttx/fs/fat.h: The FAT file system allocates
memory for sector I/O buffers used to exchange data with the
configured block driver. In some contexts, the block driver may
require DMA-capable memory. If CONFIG_FAT_DMAMEMORY is defined,
then the FAT FS will use platform-provided DMA memory allocators
to allocate the block driver I/O buffers.