John,
There are several resources for finding useful functions in EDK II.
1) The UEFI Specification from www.uefi.org<http://www.uefi.org>. The
functions listed in this document will be present on all UEFI compliant
systems, thus affording a degree of portability to your applications.
2) Header files in MdePkg/Include/Library. The libraries described by
these files encapsulate UEFI functions and some more complex operations in a
more easily used format.
3) The UEFI PI Specifications. If your target platforms support the,
optional, PI specification then there are additional functions within these
specifications that you may use.
Functions described elsewhere may not work or exist on every implementation.
Daryl McDaniel
"I don't try to describe the future. I try to prevent it"
-- Ray Bradbury
From: John Davis [mailto:davi...@gmail.com]
Sent: Wednesday, February 26, 2014 10:31 AM
To: edk2-devel@lists.sourceforge.net
Subject: [edk2] Locating a file in the file system
Hello
Is there an example someplace for accessing a file in the filesystem? I would
like to be able to read a file into a buffer as a simple exercise. I saw the
earlier notes about doing this via stdlib/posix api calls. I figure there is a
similar method to do this via uefi api. Later I want to be able to locate a
.fv file for use by the firmware volume routines.
On a related note, how do you folks find routines? I'm doing massive greps
though the header files trying to find routines which have a similar name to
what I am doing. I'm also using google to search but that is hit and miss.
For example, google "UEFI file open" gives me results about opening a .efi file
via explorer. That is not what I want to do.
--
John F. Davis
6 Kandes Court
Durham, NC 27713
919-888-8358
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