linux-kernel - Re: [PATCH] iio: proximity: lidar-v2: replace i2c block access method with the one already implemented.

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Message-ID: <20180914120950.GB6465@himanshu-Vostro-3559>
Date:   Fri, 14 Sep 2018 17:39:51 +0530
From:   Himanshu Jha <himanshujha199640@...il.com>
To:     Song Qiang <songqiang1304521@...il.com>
Cc:     jic23@...nel.org, knaack.h@....de, lars@...afoo.de,
        pmeerw@...erw.net, matt.ranostay@...sulko.com,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Song Qiang <songqiang.1304521@...il.com>
Subject: Re: [PATCH] iio: proximity: lidar-v2: replace i2c block access
 method with the one already implemented.

On Thu, Sep 13, 2018 at 11:51:45AM +0800, Song Qiang wrote:
> This driver tries to access a block of data on a i2c bus and it tries
> to manually make a device command frame and a consecutively read frame,
> then uses i2c_transfer() to read data. But this has already been
> implemented in i2c_smbus_read_i2c_block_data().
> Sorry for not having this device by my hand, which is a little expansive
> for me, but I have another i2c device and tested with both i2c_transfer()
> and i2c_smbus_read_i2c_block_data() and they all ends the same.
> I'm not familiar with the SMBus, don't know if the lidar_smbus_xfer()
> function is the same as i2c_smbus_read_block_data()? The original code
> is commented with something I'm not sure, but I think if it's a standard
> SMBus, it should be able to use in here.
> Hoping for someone to explain.

This is not how you write a commit message.
https://www.kernel.org/doc/html/latest/process/submitting-patches.html#describe-your-changes

> Signed-off-by: Song Qiang <songqiang.1304521@...il.com>
> ---

Your doubts/suggestions/rants all should be here just below
the `---` line, so that if maintainer applies the patch
then your queries doesn't get included in the commit
message.

And no need to reply an explicit "thanks".
That is implicit ;)

We already have a ~30k email traffic on LKML...
https://marc.info/?l=linux-kernel&r=1&w=2



Thanks
-- 
Himanshu Jha
Undergraduate Student
Department of Electronics & Communication
Guru Tegh Bahadur Institute of Technology