Re: [PATCH v6 0/2] Enable capsule loader interface for efi firmware updating

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On Oct 2, 2015 10:37 AM, "Borislav Petkov" <bp@xxxxxxxxx> wrote:
>
> On Fri, Oct 02, 2015 at 05:05:52AM +0800, Kweh, Hock Leong wrote:
> > From: "Kweh, Hock Leong" <hock.leong.kweh@xxxxxxxxx>
> >
> > Dear maintainers & communities,
> >
> > This patchset is created on top of Matt's patchset:
> > 1.)https://lkml.org/lkml/2014/10/7/390
> > "[PATCH 1/2] efi: Move efi_status_to_err() to efi.h"
> > 2.)https://lkml.org/lkml/2014/10/7/391
> > "[PATCH 2/2] efi: Capsule update support"
> >
> > It expose a misc char interface for user to upload the capsule binary and
> > calling efi_capsule_update() API to pass the binary to EFI firmware.
> >
> > The steps to update efi firmware are:
> > 1.) cat firmware.cap > /dev/efi_capsule_loader
> > 2.) reboot
> >
> > Any failed upload error message will be returned while doing "cat" through
> > Write() function call.
> >
> > Tested the code with Intel Quark Galileo platform.
>
> What does the error case look like? A standard glibc message about
> write(2) failing?
>

close(2), right?

--Andy
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