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From: Nikolai Kondrashov <spbnick@gmail.com>
To: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Cc: Jiri Kosina <jkosina@suse.cz>, linux-input <linux-input@vger.kernel.org>
Subject: Re: [PATCH 1/1 FROM FIXED] Revert "HID: fix unit exponent parsing"
Date: Thu, 10 Oct 2013 00:13:39 +0300	[thread overview]
Message-ID: <5255C703.6080804@gmail.com> (raw)
In-Reply-To: <5255A391.6040501@gmail.com>

On 10/09/2013 09:42 PM, Nikolai Kondrashov wrote:
>> So definitely, Microsoft considers that the unit exponent is a 4 bits
>> two's complement, otherwise, the firmware will not get a Windows 8
>> certification.
>
> I think this is due to their use of the "HID Descriptor Tool". Maybe
> assuming it is a reference implementation, which it is not, but more likely
> just not noticing the discrepancy.
>
> I'll try to reach Microsoft on this and maybe make them correct their
> specification.

I've started my attempts with a post on Microsoft's official hardware
development forums:

http://social.msdn.microsoft.com/Forums/windowshardware/en-US/e87d0db1-486e-42ae-bf95-d1ac5ffc0b02/unit-exponent-item-value-encoding-in-hid-report-descriptors?forum=whck

Let's see how it goes.

Sincerely,
Nick

      parent reply	other threads:[~2013-10-09 21:13 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-08 18:59 [PATCH 1/1] Revert "HID: fix unit exponent parsing" Nikolai Kondrashov
2013-10-08 19:05 ` [PATCH 1/1 FROM FIXED] " Nikolai Kondrashov
2013-10-09  7:37   ` Nikolai Kondrashov
2013-10-09  9:02     ` Benjamin Tissoires
2013-10-09 18:42       ` Nikolai Kondrashov
2013-10-09 19:04         ` Nikolai Kondrashov
2013-10-09 21:13         ` Nikolai Kondrashov [this message]

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