# # For a description of the syntax of this configuration file, # see misc/tools/kconfig-language.txt. # config FS_FAT bool "FAT file system" default n depends on !DISABLE_MOUNTPOINT ---help--- Enable FAT filesystem support if FS_FAT config FAT_LCNAMES bool "FAT upper/lower names" default n ---help--- Enable use of the NT-style upper/lower case 8.3 file name support. config FAT_LFN bool "FAT long file names" default n ---help--- Enable FAT long file names. NOTE: Microsoft claims patents on FAT long file name technology. Please read the disclaimer in the top-level COPYING file and only enable this feature if you understand these issues. config FAT_MAXFNAME int "FAT maximum file name size" depends on FAT_LFN ---help--- If CONFIG_FAT_LFN is defined, then the default, maximum long file name is 255 bytes. This can eat up a lot of memory (especially stack space). If you are willing to live with some non-standard, short long file names, then define this value to be something more reasonable. A good choice would be the same value as selected for NAME_MAX which will limit the visibility of longer file names anyway. config FS_FATTIME bool "FAT timestamps" default n ---help--- Support FAT date and time. NOTE: There is not much sense in supporting FAT date and time unless you have a hardware RTC or other way to get the time and date. config FAT_DMAMEMORY bool "DMA memory allocator" default n ---help--- The FAT file system allocates two I/O buffers for data transfer, each are the size of one device sector. One of the buffers is allocated once for each FAT volume that is mounted; the other buffers are allocated each time a FAT file is opened. Some hardware, however, may require special DMA-capable memory in order to perform the the transfers. If FAT_DMAMEMORY is defined then the architecture-specific hardware must provide the funtions fat_dma_alloc() and fat_dma_free(): fat_dmalloc() will allocate DMA-capable memory of the specified size; fat_dmafree() is the corresponding function that will be called to free the DMA-capable memory. endif