linux-kernel - Re: [char-misc-next 01/12 v3] mei: Rename mei_device to mei

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Date:	Tue, 12 Feb 2013 13:38:23 -0800
From:	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
To:	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	"Winkler, Tomas" <tomas.winkler@...el.com>,
	"arnd@...db.de" <arnd@...db.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [char-misc-next 01/12 v3] mei: Rename mei_device to mei_host

On Tue, Feb 12, 2013 at 10:29:35PM +0100, Samuel Ortiz wrote:
> Hi Tomas,
> 
> On Tue, Feb 12, 2013 at 09:17:21PM +0000, Winkler, Tomas wrote:
> > 
> > 
> > > In preparation for the MEI bus code merge, we rename the mei_device
> > > structure to mei_host.
> > > struct mei_device will be used for devices on the MEI bus in order to follow
> > > exisiting driver model implementations practices.
> > > 
> > I'd like to NACK this name, we use  'host' for the host part of the MEI protocol, 
> > 
> > You can use the mei_controller, mei_adapter, and  I'm not sure what else can come into mind.
> mei_controller sounds good to me.
> 
> 
> > I prefer not to break the HW spec language.  I prefer to leave it mei_device as after all it's a device on pci bus it's not a pure host controller.
> > And call what is on the mei  bus mei_cl_dev or mei_app_dev . From the HW perspective it actually 
> > talks to a client/application residing inside MEI device, it is not always a physical device like NFC.
> > 
> The bus is not physical neither. It's really items that we add to this bus,
> watchdog could be the next candidate for example.
> 
> > Please let's find something that makes both hw and Linux happy
> I still believe it makes sense to use mei_device for what we add to the MEI
> bus. I'd be fine with mei_bus_device as well, but that would somehow look
> a bit awkward. Greg, Arnd, any preference ?

"mei_device" works the best for me.  Tomas, what you think of as a "MEI
Device" really is a "MEI Controller", it bridges the difference between
the PCI bus and your new MEI bus, so you will need to start thinking of
these things a bit differently now that you have created your own little
virtual bus.

thanks,

greg k-h
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