linux-kernel - Re: [PATCH 0/7] hid driver transport cleanup

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Message-ID: <CAN+gG=GJH-jTFE5OEsme57RzN_L1_gQMAD9Dy2=NXZdDOYCUxA@mail.gmail.com>
Date:	Mon, 11 Feb 2013 12:19:13 +0100
From:	Benjamin Tissoires <benjamin.tissoires@...il.com>
To:	Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Henrik Rydberg <rydberg@...omail.se>,
	Jiri Kosina <jkosina@...e.cz>,
	Stephane Chatty <chatty@...c.fr>, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/7] hid driver transport cleanup

On Mon, Feb 11, 2013 at 11:13 AM, Mika Westerberg
<mika.westerberg@...ux.intel.com> wrote:
> On Fri, Feb 08, 2013 at 03:37:29PM +0100, Benjamin Tissoires wrote:
>> so, here is the hid drivers cleanup. The aim is to remove as much as possible
>> direct calls to usbhid for hid drivers. Thus, other transport layers can use
>> the existing hid drivers (like I2C or uhid).
>
> We also found out that there is a dependency to usbhid in many of the
> drivers, especially in sensor-hub which caused the system crash while the
> driver tried to transmit over USB even though it was behind I2C.
>
> Your series fixes that nicely :)
>
> You can add,
>
> Reviewed-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
>
> for the whole series and in addition,
>
> Tested-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
>
> for the sensor-hub part (HID over I2C). I have few more patches to the
> sensor-hub myself and I'm going to rebase them on top of this series.

Thanks Mika for reviewing.

I just wanted to warn you that the HID over I2C part is still lacking
the support of requests through hid_hw_request(). So the functions
sensor_hub_set_feature(), sensor_hub_get_feature() and
sensor_hub_input_attr_get_raw_value() won't work, in a silently way
:(.
I started writing the patch but stopped at some point due to lack of
ways to test it.

Cheers,
Benjamin
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