linux-kernel - Re: [PATCH v1] i2c-hid: introduce HID over i2c specification implementation

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Message-ID: <CAM=Q2cv7Qc9Up5b_033uwaunnBz1mB4UWbb1bh9TGzX5=FxFrg@mail.gmail.com>
Date:	Wed, 3 Oct 2012 21:44:09 +0530
From:	Shubhrajyoti Datta <omaplinuxkernel@...il.com>
To:	Benjamin Tissoires <benjamin.tissoires@...il.com>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Jiri Kosina <jkosina@...e.cz>,
	Stephane Chatty <chatty@...c.fr>, fabien.andre@...il.com,
	scott.liu@....com.tw, Jean Delvare <khali@...ux-fr.org>,
	Ben Dooks <ben-linux@...ff.org>,
	Wolfram Sang <w.sang@...gutronix.de>,
	linux-i2c@...r.kernel.org, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] i2c-hid: introduce HID over i2c specification implementation

On Wed, Oct 3, 2012 at 9:03 PM, Benjamin Tissoires
<benjamin.tissoires@...il.com> wrote:
> Hi,
>
> thanks also for the review. Two in the same day! I was about to send a
> ping on that patch.... ;-)
>
> On Wed, Oct 3, 2012 at 8:05 AM, Shubhrajyoti Datta
> <omaplinuxkernel@...il.com> wrote:
>> On Fri, Sep 14, 2012 at 7:11 PM, benjamin.tissoires
>> <benjamin.tissoires@...il.com> wrote:
>>> From: Benjamin Tissoires <benjamin.tissoires@...c.fr>
>>>
>>> Microsoft published the protocol specification of HID over i2c:
>>> http://msdn.microsoft.com/en-us/library/windows/hardware/hh852380.aspx
>>>
>>> This patch introduces an implementation of this protocol.
>>>
>>> This implementation does not includes the ACPI part of the specification.
>>> This will come when ACPI 5.0 devices will be available.
>>>
>>> Once the ACPI part will be done, OEM will not have to declare HID over I2C
>>> devices in their platform specific driver.
>>>
>>> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...c.fr>
>>> ---
>>>
>>> Hi,
>>>
>>> this is finally my first implementation of HID over I2C.
>>>
>>> This has been tested on an Elan Microelectronics HID over I2C device, with
>>> a Samsung Exynos 4412 board.
>>>
>>> Any comments are welcome.
>>>
>>> Cheers,
>>> Benjamin
>>>
>>>  drivers/i2c/Kconfig         |    8 +
>>>  drivers/i2c/Makefile        |    1 +
>>>  drivers/i2c/i2c-hid.c       | 1027 +++++++++++++++++++++++++++++++++++++++++++
>>>  include/linux/i2c/i2c-hid.h |   35 ++
>>>  4 files changed, 1071 insertions(+)
>>>  create mode 100644 drivers/i2c/i2c-hid.c
>>>  create mode 100644 include/linux/i2c/i2c-hid.h
>>>
>>> diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
>>
[...]
>
> same thing, will change it in v2.
>
>>
>>> +
>>> +       if (debug)
>>> +               dev_err(&client->dev, "resetting...\n");
>> this is a little uncustomary.
>>
>> May be consider  bdg
>
> Sorry for that. I don't get your point here. You don't like the whole
> "if(debug) dev_err(...)" or just the "dev_err(...)" call?
>
Apologies for the typo dev_dbg.
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