linux-kernel - Re: [PATCH v2] ims-pcu: Add commands supported by the new version of the FW

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Date:	Fri, 3 Jan 2014 20:24:17 -0800
From:	Andrey Smirnov <andrew.smirnov@...il.com>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] ims-pcu: Add commands supported by the new version of
 the FW

On Fri, Jan 3, 2014 at 5:39 PM, Dmitry Torokhov
<dmitry.torokhov@...il.com> wrote:
> Hi Andrey,
>
> On Wed, Jan 01, 2014 at 04:47:01PM -0800, Andrey Smirnov wrote:
>> New version of the PCU firmware supports two new commands:
>>   - IMS_PCU_CMD_OFN_SET_CONFIG which allows to write data to the
>>   registers of one finger navigation(OFN) chip present on the device
>>   - IMS_PCU_CMD_OFN_GET_CONFIG which allows to read data form the
>>   registers of said chip.
>>
>> This commit adds two helper functions to use those commands and sysfs
>> attributes to use them. It also exposes some OFN configuration
>> parameters via sysfs.
>
> Thank you for making the changes. I do not still quite like the games we
> play with the OFN attributes, how about the patch below (on top of
> yours)?
>

Yeah, I agree I like it the "two separate sysfs groups" group approach
better. The only small nitpick about your patch is that I think we
should use "get_unaligned_le16" instead of "le16_to_cpup"(In case
anyone decides to run the driver on SuperH or C6x DSPs from TI :-)).
Let me test it and if everything works as expected I'll apply you
patch, convert it to "get_unaligned_le16", squash and send v3 of the
patch.

Thanks,
Andrey
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