From: "Pali Rohár" <pali.rohar@gmail.com>
To: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Gabriele Mazzotta <gabriele.mzt@gmail.com>,
Andrei Borzenkov <arvidjaar@gmail.com>,
Darren Hart <dvhart@infradead.org>,
platform-driver-x86@vger.kernel.org
Subject: Re: Regression with dell-rbtn: radio killed on resume after suspend to RAM
Date: Tue, 24 Nov 2015 10:02:27 +0100 [thread overview]
Message-ID: <20151124090227.GC29874@pali> (raw)
In-Reply-To: <20151124085215.GA7046@srcf.ucam.org>
On Tuesday 24 November 2015 08:52:16 Matthew Garrett wrote:
> On Tue, Nov 24, 2015 at 09:49:18AM +0100, Gabriele Mazzotta wrote:
> >
> > Pali, what should we do for the case Latitude/Precision + RBTN_TOGGLE?
>
> Are there any systems which claim Windows 8 support via OSI and which
> don't implement the rbtn interface? If not, just add an ACPI dependency
> to dell-laptop and have it skip the rfkill code on Windows 8 and later
> systems. I never trusted that code, but Dell insisted that it would
> always wor on Latitudes and Precisions…
>
Matthew, Dell released documentation for that radio device code in
userspace libsmbios project. And Gabriele told me that userspace tools
works fine. Just kernel implementation is somehow broken and does not
work correctly on XPS. I already found some bugs in that kernel
implementation (e.g. garbage was send in buffer via SMI to BIOS). And I
think that SMBIOS is working also on XPS laptops, just there are unfixed
bugs in kernel...
--
Pali Rohár
pali.rohar@gmail.com
next prev parent reply other threads:[~2015-11-24 9:02 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-21 18:57 Regression with dell-rbtn: radio killed on resume after suspend to RAM Andrei Borzenkov
2015-11-21 19:08 ` Pali Rohár
2015-11-21 20:39 ` Andrei Borzenkov
2015-11-22 6:23 ` Andrei Borzenkov
2015-11-23 14:50 ` Pali Rohár
2015-11-23 15:14 ` Gabriele Mazzotta
2015-11-23 16:23 ` Andrei Borzenkov
2015-11-23 19:29 ` Darren Hart
2015-11-23 22:33 ` Gabriele Mazzotta
[not found] ` <5653E243.9010707@gmail.com>
2015-11-24 8:32 ` Pali Rohár
2015-11-24 8:49 ` Gabriele Mazzotta
2015-11-24 8:52 ` Matthew Garrett
2015-11-24 9:02 ` Pali Rohár [this message]
2015-11-24 9:42 ` Gabriele Mazzotta
2015-11-25 3:57 ` Andrei Borzenkov
2015-11-25 3:53 ` Andrei Borzenkov
2015-11-25 8:34 ` Andrei Borzenkov
2015-11-25 8:35 ` Pali Rohár
2015-11-25 9:31 ` Gabriele Mazzotta
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