From: GN Keshava <keshava.gn@gmail.com>
To: "edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Cc: "edk2-devel@lists.sourceforge.net" <edk2-devel@lists.sourceforge.net>
Subject: How to open a file by it's full path in UEFI
Date: Tue, 27 Sep 2016 09:03:31 +0000 [thread overview]
Message-ID: <CABKwMduQK-P41=EG7cJtwA5XAnYsa-g=eryNXM=wWNWYdcSwMQ@mail.gmail.com> (raw)
Hi all,
I'm trying to open a file from my UEFI application. The path of file is
fs1:/myfolder/myfile.txt
The code :
efiStatus = bs->LocateHandleBuffer(ByProtocol,
&sfspGuid,
NULL,
&handleCount,
&handles);
for (index = 0; index < (int)handleCount; ++ index)
{
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL* fs = NULL;
efiStatus = bs->HandleProtocol(
handles[index],
&sfspGuid,
(void**)&fs);
EFI_FILE_PROTOCOL* root = NULL;
...
efiStatus = fs->OpenVolume(fs, &root);
EFI_FILE_PROTOCOL* token = NULL;
efiStatus = root->Open(
root,
&token,
L"myfolder\\myfile.txt",
EFI_FILE_MODE_READ,
EFI_FILE_READ_ONLY | EFI_FILE_HIDDEN | EFI_FILE_SYSTEM);
}
But using this method, I can only go through all the file system handles
and open each volume and try opening my file.
But I want to give full path to my file and open it in it's volume.
How can I acheive this?
Thanks.
With regards,
Keshava GN
next reply other threads:[~2016-09-27 9:03 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-27 9:03 GN Keshava [this message]
2016-09-27 9:07 ` How to open a file by it's full path in UEFI Andrew Fish
2016-09-27 9:28 ` GN Keshava
2016-09-27 9:16 ` Laszlo Ersek
2016-09-27 9:25 ` GN Keshava
2016-09-27 9:49 ` Laszlo Ersek
2016-09-27 10:46 ` GN Keshava
2016-09-27 11:17 ` Laszlo Ersek
2016-09-27 11:51 ` GN Keshava
2016-09-27 15:07 ` Carsey, Jaben
2016-09-27 15:13 ` Laszlo Ersek
2016-09-27 16:44 ` Jarlstrom, Laurie
2016-09-27 16:48 ` Andrew Fish
2016-09-27 16:56 ` GN Keshava
2016-09-29 10:22 ` GN Keshava
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