tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Enable write file to USB from Shell in Win7 OS 

Signed-off-by: ydong10
Reviewed-by: niruiyu

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13013 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
ydong10 2012-02-15 02:40:18 +00:00
parent d60f6af456
commit 21e3aefed2
1 changed files with 16 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
Nt32Pkg/WinNtBlockIoDxe/WinNtBlockIo.c
View File

@ -1,6 +1,6 @@
/**@file
Copyright (c) 2006 - 2007, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@ -972,8 +972,10 @@ WinNtBlockIoWriteBlocks (
WIN_NT_BLOCK_IO_PRIVATE *Private;
UINTN BytesWritten;
BOOL Flag;
BOOL Locked;
EFI_STATUS Status;
EFI_TPL OldTpl;
UINTN BytesReturned;
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
@ -984,7 +986,20 @@ WinNtBlockIoWriteBlocks (
goto Done;
}
//
// According the Windows requirement, first need to lock the volume before
// write to it.
//
Locked = Private->WinNtThunk->DeviceIoControl (Private->NtHandle, FSCTL_LOCK_VOLUME, NULL, 0, NULL, 0, &BytesReturned, NULL);
if (Locked == 0) {
DEBUG ((EFI_D_INIT, "ReadBlocks: Lock volume failed. (%d)\n", Private->WinNtThunk->GetLastError ()));
Status = WinNtBlockIoError (Private);
goto Done;
}
Flag = Private->WinNtThunk->WriteFile (Private->NtHandle, Buffer, (DWORD) BufferSize, (LPDWORD) &BytesWritten, NULL);
if (Locked != 0) {
Private->WinNtThunk->DeviceIoControl (Private->NtHandle, FSCTL_UNLOCK_VOLUME, NULL, 0, NULL, 0, &BytesReturned, NULL);
}
if (!Flag || (BytesWritten != BufferSize)) {
DEBUG ((EFI_D_INIT, "ReadBlocks: WriteFile failed. (%d)\n", Private->WinNtThunk->GetLastError ()));
Status = WinNtBlockIoError (Private);