June 2017
Intermediate to advanced
478 pages
13h 14m
English
Content preview from Mastering Embedded Linux Programming - Second Edition
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FAT16/32
The old Microsoft filesystems, FAT16 and FAT32, continue to be important as a common format understood by most operating systems. When you buy an SD card or USB flash drive, it is almost certain to be formatted as FAT32 and, in some cases, the on-card microcontroller is optimized for FAT32 access patterns. Also, some boot ROMs require a FAT partition for the second-stage bootloader, the TI OMAP-based chips for example. However, FAT formats are definitely not suitable for storing critical files because they are prone to corruption and make poor use of the storage space.
Linux supports FAT16 through the msdos filesystem and both FAT32 and FAT16 through the vfat filesystem. To mount a device, say an SD card, on the second mmc hardware ...
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