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The entry functions and the FSFile_Open() function accept full file paths. For information about using file and path names, see µC/FS File and Directory Names and Paths.
The functions listed in Table - File API functions and the are Table - Entry API Functions the are core functions in the file access module (FSFile_####() functions) and entry module (FSEntry_####() functions). These are matched, in most cases, by API level functions that correspond to standard C or POSIX functions. The core and API functions provide basically the same functionality; the benefits of the former are enhanced capabilities, a consistent interface and meaningful return error codes.