225 #define LD2PD(vol) VolToPart[vol].pd	/* Get physical drive number */  argument
226 #define LD2PT(vol) VolToPart[vol].pt	/* Get partition index */  argument
228 #define LD2PD(vol) (BYTE)(vol)	/* Each logical drive is bound to the same physical drive number */  argument
229 #define LD2PT(vol) 0			/* Find first valid partition or in SFD */  argument
2336 	int vol			/* Filtered by 0:file/directory or 1:volume label */  argument
2355 			if (FF_USE_LABEL && vol) {
2372 …if (b == DDEM || b == '.' || (int)((attr & ~AM_ARC) == AM_VOL) != vol) {	/* An entry without valid…
2391 …if (b != DDEM && b != '.' && attr != AM_LFN && (int)((attr & ~AM_ARC) == AM_VOL) == vol) {	/* Is i…
3119 	int i, vol = -1;  local
3126 	if (!tp) return vol;	/* Invalid path name? */
3148 			vol = i;		/* Drive number */
3151 		return vol;
3165 			vol = i;		/* Drive number */
3167 			return vol;
3173 	vol = CurrVol;	/* Default drive is current drive */
3175 	vol = 0;		/* Default drive is 0 */
3177 	return vol;		/* Return the default drive */
3221 	int vol;  local
3231 	vol = get_ldnumber(path);
3232 	if (vol < 0) return FR_INVALID_DRIVE;
3235 	fs = FatFs[vol];					/* Get pointer to the filesystem object */
3257 	fs->pdrv = LD2PD(vol);				/* Bind the logical drive and a physical drive */
3273 	if (fmt == 2 || (fmt < 2 && LD2PT(vol) != 0)) {	/* Not an FAT-VBR or forced partition number */
3278 		i = LD2PT(vol);					/* Partition number: 0:auto, 1-4:forced */
3283 		} while (LD2PT(vol) == 0 && fmt >= 2 && ++i < 4);
3506 	int vol;  local
3512 	vol = get_ldnumber(&rp);
3513 	if (vol < 0) return FR_INVALID_DRIVE;
3514 	cfs = FatFs[vol];					/* Pointer to fs object */
3529 		if (!ff_cre_syncobj((BYTE)vol, &fs->sobj)) return FR_INT_ERR;
3532 	FatFs[vol] = fs;					/* Register new fs object */
4079 	int vol;  local
4083 	vol = get_ldnumber(&path);
4084 	if (vol < 0) return FR_INVALID_DRIVE;
4085 	CurrVol = (BYTE)vol;	/* Set it as current volume */
5549 	int vol;  local
5557 	vol = get_ldnumber(&path);					/* Get target logical drive */
5558 	if (vol < 0) return FR_INVALID_DRIVE;
5559 	if (FatFs[vol]) FatFs[vol]->fs_type = 0;	/* Clear the volume if mounted */
5560 	pdrv = LD2PD(vol);	/* Physical drive */
5561 	part = LD2PT(vol);	/* Partition (0:create as new, 1-4:get from partition table) */