linux-kernel - Re: [PATCH 1/3] HID: Use existing parser for pre-scanning the report descriptors

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Message-ID: <520B27C1.4090803@ahsoftware.de>
Date:	Wed, 14 Aug 2013 08:46:25 +0200
From:	Alexander Holler <holler@...oftware.de>
To:	Benjamin Tissoires <benjamin.tissoires@...il.com>
CC:	Benjamin Tissoires <benjamin.tissoires@...hat.com>,
	Henrik Rydberg <rydberg@...omail.se>,
	Jiri Kosina <jkosina@...e.cz>,
	Stephane Chatty <chatty@...c.fr>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	linux-input <linux-input@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject: Re: [PATCH 1/3] HID: Use existing parser for pre-scanning the report
 descriptors

Am 13.08.2013 21:15, schrieb Benjamin Tissoires:
> On Tue, Aug 13, 2013 at 8:37 PM, Alexander Holler <holler@...oftware.de> wrote:

>>
>> Another problem is that I don't have any commercial sensor hub and I'm
>> therefor not a very relvant as tester (I've implemented the firmware for my
>> HID (sensor hub) device too). Therefor I've added Srinivas Pandruvada to cc,
>> because he's the only one I know who has HID sensor hubs.
>
> It is not a problem if you don't have a commercial sensor hub :)
> Thanks for adding Srinivas in CC.

The problem is that this invalidates me as a tester because everything I 
can test is something untested. As I've written both ends of the pipe, I 
could have understood something totally wrong but as I've implemented 
both sides (the device- and the kernel-part) it still might work without 
problems. Therefor I currently have to bother Srinivas whenever I do 
changes in the kernel in regard to hid-sensor-hub. ;)

>>
>> And, as said, I've implemented the other side here too, therefor I've added
>> the descriptor I'm using below.
>>
>
> Thanks, this will help me to test against your report descriptors.
> Can I also ask you to send me some hid-recorder[1] traces of your
> sensor? With hid-replay, I can then re-inject them in the hid
> subsystem, and then I include the results in a regression test suite.

Unfortunately hid-record doesn't list my device because it doesn't show 
up as an hidraw-device.

But maybe you have an Arduino Leonardo or a clone. If so you can get the 
description and firmware here:

http://ahsoftware.de/dcf77-hid-usb-rtc/

Regards,

Alexander Holler

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