RE: Passing error code through FSDMGR by arogers
arogers
Tue Jan 11 12:13:36 CST 2005
Since the sr_status member of the SG_REQ structure is ignored by FSDMGR,
the proper way for a block driver to return an error code on i/o failure is
to use SetLastError(). If the block driver returns FALSE for an i/o
request, FSDMGR_ReadDiskEx will return the result of GetLastError() to the
calling FSD.
Andrew Rogers
Microsoft Windows CE
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> From: "Helge Kruse" <Helge.Kruse-nospam@gmx.net>
> Subject: Passing error code through FSDMGR
> Date: Fri, 10 Dec 2004 13:18:38 +0100
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> I am working on a Windows CE 3.0 file system driver, that uses
> FSDMGR_ReadDiskEx. This functions is called with a
FSD_SCATTER_GATHER_INFO
> argument. FSDMGR translates this request to a function call
DISK_IOCTL_WRITE
> call of the lower block driver with a SG_REQ argument.
>
> The online help requests from the block driver, that the member sr_status
> should contain the error code or ERROR_SUCCESS. I am missing a
corresponding
> member in the FSD_SCATTER_GATHER_INFO.
>
> What is the correct way to pass error information from the block driver
> through FSDMGR to the file system driver?
>
> /Helge
>
>
>