linux-kernel - Re: [PATCH v1 1/4] mhi_bus: core: Add support for MHI host interface

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Message-ID: <20180503192110.bjd46afhe2ein3qm@devuan>
Date:   Thu, 3 May 2018 21:21:10 +0200
From:   Pavel Machek <pavel@....cz>
To:     Sujeev Dias <sdias@...eaurora.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, Tony Truong <truong@...eaurora.org>
Subject: Re: [PATCH v1 1/4] mhi_bus: core: Add support for MHI host interface

Hi!

> MHI Host Interface is a communication protocol to be used by the host
> to control and communcate with modem over a high speed peripheral bus.
> This module will allow host to communicate with external devices that
> support MHI protocol.

I have Motorola Droid 4 cellphone here, with Qualcomm GSM modem. But
it talks over serial line and USB. I guess MHI is not applicable to my
hardware?

> +MHI Devices
> +-----------
> +Logical device that bind to maximum of two physical MHI channels. Once MHI is in
> +powered on state, each supported channel by controller will be allocated as a
> +mhi_device.

What kind of protocol is running over MHI? I guess its not AT
commands. QMI? Or something entirely different?
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html