IOCTL_DISK_FLUSH_CACHE
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8/28/2008
The FAT file system issues this IOCTL when a storage device has an associated hardware cache, and the device driver reports that the cache needs to be flushed for transfers. The DeviceIoControl function processes this IOCTL.
Parameters
- hDevice
[in] Handle to the block device storage volume, which can be obtained by opening the FAT volume by its file system entry.
- dwIoControlCode
[in] Specifies this IOCTL.
- lpInBuf
Not used.
- nInBufSize
Not used.
- lpOutBuf
Not used.
- nOutBufSize
Not used.
- lpBytesReturned
Not used.
- lpOverlapped
Not used.
Return Values
If the return value is TRUE, then the IOCTL was successfully processed; otherwise, the return value is FALSE.
If FALSE returns, callers should call GetLastError for information.
Remarks
This IOCTL is used only to flush a hardware cache.
You do not need to store the manufacturer identifier string and disk serial number. For ATA disk devices, the manufacturer identifier string and disk serial number read directly from the storage card.
Requirements
| Header | diskio.h |
| Windows Embedded CE | Windows CE 3.0 and later |