/// <summary>
/// Refreshes the logical device.
/// </summary>
public void Refresh()
{
bootSector = null;
data = new UInt16[0];
// Jump to FAT partition
DeviceStream.Seek(partition.RelativeSector * PhysicalDevice.SectorSize, SeekOrigin.Begin);
if (!partition.IsFAT)
{
return;
}
// Boot sector
bootSector = (BootSector)StreamActivator.CreateInstance(typeof(BootSector), DeviceStream);
DeviceStream.Seek(448, SeekOrigin.Current);
// Failsafe .. be sure FAT partition table is valid
if ((DeviceStream.ReadByte() != 0x55) || (DeviceStream.ReadByte() != 0xAA))
{
bootSector = null;
return;
}
// Get FAT sector
BinaryReader br = new BinaryReader(DeviceStream);
data = new UInt16[bootSector.NumberOfFATs * ((bootSector.SectorsPerFAT * PhysicalDevice.SectorSize) / 2)];
for (int i = 0; i < data.Length; i++)
{
data[i] = br.ReadUInt16();
}
}