Changeset 288

Timestamp:

Jul 4, 2017, 6:41:30 AM (8 years ago)

Author:

Valery V. Sedletski

Message:

FORMAT: Make volumes formatted with our FORMAT, understandable by winxp exFAT driver.

File:

• trunk/src/ufat32/format.c (modified) (3 diffs)

trunk/src/ufat32/format.c ¶

@@ -702 +702 @@
         pEXFATBootSect->ulClusterCount = (ULONG)((dp.TotalSectors - dp.FatSize
             - dp.ReservedSectCount) / dp.SectorsPerCluster);
-        ulExfatBitmapLen = pEXFATBootSect->ulClusterCount / 8;
+        ulExfatBitmapLen = (pEXFATBootSect->ulClusterCount / 8) +
+           (pEXFATBootSect->ulClusterCount % 8 ? 1 : 0);
         ulExfatBitmapClusters = ulExfatBitmapLen / (dp.SectorsPerCluster * dp.BytesPerSect);
         ulExfatBitmapClusters = (ulExfatBitmapLen % (dp.SectorsPerCluster * dp.BytesPerSect)) ?
@@ -710 +711 @@
         ulExfatUpCaseClusters = (ulExfatUpCaseLen % (dp.SectorsPerCluster * dp.BytesPerSect)) ?
             ulExfatUpCaseClusters + 1 : ulExfatUpCaseClusters;
-        pEXFATBootSect->RootDirStrtClus = 2 + ulExfatBitmapClusters + 1;
+        pEXFATBootSect->RootDirStrtClus = 2 + ulExfatBitmapClusters + ulExfatUpCaseClusters;
         pEXFATBootSect->ulVolSerial = VolumeId;
         pEXFATBootSect->usFsRev = 0x0100;
@@ -988 +989 @@
         pDir->u.UpCaseTbl.ulTblCheckSum = GetChkSum2((char *)pUpCase, ulExfatUpCaseLen);
         //
-        SectorStart += dp.SectorsPerCluster;
+        SectorStart += ulExfatUpCaseClusters * dp.SectorsPerCluster;
         write_sect ( hDevice, SectorStart, dp.BytesPerSect, pRootDir, dp.SectorsPerCluster );
     }