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| R2011b Documentation → xPC Target | |
Learn more about xPC Target |
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| Contents | Index |
typedef struct {
char Label[12];
char DriveLetter;
char Reserved[3];
unsigned int SerialNumber;
unsigned int FirstPhysicalSector;
unsigned int FATType;
unsigned int FATCount;
unsigned int MaxDirEntries;
unsigned int BytesPerSector;
unsigned int SectorsPerCluster;
unsigned int TotalClusters;
unsigned int BadClusters;
unsigned int FreeClusters;
unsigned int Files;
unsigned int FileChains;
unsigned int FreeChains;
unsigned int LargestFreeChain;
} diskinfo; Label | This value contains the zero-terminated string that contains the volume label. The string is empty if the volume has no label. |
DriveLetter | This value contains the drive letter, in uppercase. |
Reserved | Reserved. |
SerialNumber | This value contains the volume serial number. |
FirstPhysicalSector | This value contains the logical block addressing (LBA) address of the logical drive boot record. For 3.5-inch disks, this value is 0. |
FATType | This value contains the type of file system found. It can contain 12 , 16 , or 32 for FAT-12, FAT-16, or FAT-32 volumes, respectively. |
FATCount | This value contains the number of FAT partitions on the volume. |
MaxDirEntries | This value contains the size of the root folder. For FAT-32 systems, this value is 0. |
BytesPerSector | This value contains the sector size. This value is most likely to be 512. |
SectorsPerCluster | This value contains, in sectors, the size of the smallest unit of storage that can be allocated to a file. |
TotalClusters | This value contains the number of file storage clusters on the volume. |
BadClusters | This value contains the number of clusters that have been marked as bad. These clusters are unavailable for file storage. |
FreeClusters | This value contains the number of clusters that are currently available for storage. |
Files | This value contains the number of files, including directories, on the volume. This number excludes the root folder and files that have an allocated file size of 0. |
FileChains | This value contains the number of contiguous cluster chains. On a completely unfragmented volume, this value is identical to the value of Files. |
FreeChains | This value contains the number of contiguous cluster chains of free clusters. On a completely unfragmented volume, this value is 1. |
LargestFreeChain | This value contains the maximum allocated file size, in number of clusters, for a newly allocated contiguous file. On a completely unfragmented volume, this value is identical to FreeClusters. |
The diskinfo structure contains information for file system disks.
API function xPCFSDiskInfo
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