linux-kernel - Re: [PATCH v10 1/3] drivers: ddcci: add drivers for DDCCI

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Date:   Mon, 4 Apr 2022 06:58:26 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Yusuf Khan <yusisamerican@...il.com>
Cc:     linux-kernel@...r.kernel.org, jasowang@...hat.com,
        mikelley@...rosoft.com, mst@...hat.com, javier@...igon.com,
        arnd@...db.de, will@...nel.org, axboe@...nel.dk,
        Christoph Grenz <christophg+lkml@...nz-bonn.de>
Subject: Re: [PATCH v10 1/3] drivers: ddcci: add drivers for DDCCI

On Sun, Apr 03, 2022 at 04:08:49PM -0700, Yusuf Khan wrote:
> This patch adds the main DDCCI driver. This interfaces with I2C to allow the
> kernel to communicate with DDCCI supporting monitors, it exports a chardev
> and sysfs interface for userspace.

Where is the Documentation/ABI/ entries for the sysfs code, and where is
the userspace code that uses the chardev interface?  And why chardev?

This text says _what_ you are doing, but not _why_ you are doing it.

thanks,

greg k-h