FF_MAX_LFN - syntax, references, description

References

Code

Location

#define FF_MAX_LFN CONFIG_FATFS_MAX_LFN

#if FF_MAX_LFN < 12 || FF_MAX_LFN > 255

#define DEF_NAMBUF WCHAR lbuf[FF_MAX_LFN+1]; /* LFN working buffer */

#define INIT_NAMBUF(fs) { lfn = ff_memalloc((FF_MAX_LFN+1)*2); if (!lfn) LEAVE_FF(fs, FR_NOT_ENOUGH_CORE); (fs)->lfnbuf = lfn; }

if (i >= FF_MAX_LFN + 1 || ff_wtoupper(uc) != ff_wtoupper(lfnbuf[i++])) { /* Compare it */

if (i >= FF_MAX_LFN + 1) return 0; /* Buffer overflow? */

if (i >= FF_MAX_LFN + 1) return 0; /* Buffer overflow? */

if (di >= FF_MAX_LFN) return FR_INVALID_NAME; /* Reject too long name */