From: Samuel Ortiz <sameo@linux.intel.com>
To: Tomas Winkler <tomas.winkler@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
Greg KH <gregkh@linuxfoundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [char-misc-next 01/12 v3] mei: Rename mei_device to mei_host
Date: Wed, 20 Feb 2013 11:57:31 +0100 [thread overview]
Message-ID: <20130220105731.GT18295@sortiz-mobl> (raw)
In-Reply-To: <CA+i0qc6G83xsakt4FVzV1+=b6MVS9C73rE6+3Wmf1R8gs7rH1A@mail.gmail.com>
On Tue, Feb 19, 2013 at 03:32:44PM +0200, Tomas Winkler wrote:
> On Wed, Feb 13, 2013 at 11:39 AM, Samuel Ortiz <sameo@linux.intel.com> wrote:
> >
> > On Tue, Feb 12, 2013 at 11:09:00PM +0000, Arnd Bergmann wrote:
> > > On Tuesday 12 February 2013, gregkh@linuxfoundation.org wrote:
> > > > >
> > > > > > 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.
> > >
> > > Yes, I agree. mei_bus_device would also work as the name for the controller,
> > > but not for the devices attached to it IMO.
> > Tomas, I propose to switch to mei_controller instead of mei_host and keep the
> > mei_device name for the devices we attach to the MEI bus.
> > Does that work for you ?
> >
>
> The issue is that when we added our virtual bus we haven't gave up on
> /dev/mei backed by mei_device
> This is the interface, defined in linux/mei.h which user space
> applications use to connect to ME Clients within ME device.
> Any ME client can be connected through this interface and we have few
> legacy applications running for few years that use this interface so
> we are not going to break them.
>
> What we've done now is we added a virtual bus so also in-kernel
> applications/subsystems can more naturally connect to the ME Clients,
> this connection is client specific. So the device that connect to the
> bus is not an mei device but mei client device hence the name I've
> proposed mei_cl_device.
I don't have a strong opinion here, so that would be fine with me.
Greg, Arnd, would mei_cl_device and mei_cl_driver be an acceptable compromise?
Cheers,
Samuel.
--
Intel Open Source Technology Centre
http://oss.intel.com/
next prev parent reply other threads:[~2013-02-20 10:57 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-12 18:36 [char-misc-next 00/12 v3] Add MEI bus and NFC device Samuel Ortiz
2013-02-12 18:36 ` [char-misc-next 01/12 v3] mei: Rename mei_device to mei_host Samuel Ortiz
2013-02-12 21:17 ` Winkler, Tomas
2013-02-12 21:29 ` Samuel Ortiz
2013-02-12 21:38 ` gregkh
2013-02-12 23:09 ` Arnd Bergmann
2013-02-13 9:39 ` Samuel Ortiz
2013-02-19 13:32 ` Tomas Winkler
2013-02-20 10:57 ` Samuel Ortiz [this message]
2013-03-11 10:44 ` Samuel Ortiz
2013-03-11 13:34 ` Arnd Bergmann
2013-02-12 18:36 ` [char-misc-next 02/12 v3] mei: bus: Initial MEI bus type implementation Samuel Ortiz
2013-02-12 18:36 ` [char-misc-next 03/12 v3] mei: bus: Implement driver registration Samuel Ortiz
2013-02-12 18:36 ` [char-misc-next 04/12 v3] mei: bus: Initial implementation for I/O routines Samuel Ortiz
2013-02-12 18:36 ` [char-misc-next 05/12 v3] mei: bus: Add bus related structures to mei_cl Samuel Ortiz
2013-02-12 18:36 ` [char-misc-next 06/12 v3] mei: bus: Call bus routines from the core code Samuel Ortiz
2013-02-12 18:36 ` [char-misc-next 07/12 v3] mei: bus: Synchronous API for the data transmission Samuel Ortiz
2013-02-12 18:36 ` [char-misc-next 08/12 v3] mei: bus: Implement bus driver data setter/getter Samuel Ortiz
2013-02-12 18:36 ` [char-misc-next 09/12 v3] mei: nfc: Initial nfc implementation Samuel Ortiz
2013-02-12 18:37 ` [char-misc-next 10/12 v3] mei: nfc: Connect also the regular ME client Samuel Ortiz
2013-02-12 18:37 ` [char-misc-next 11/12 v3] mei: nfc: Add NFC device to the MEI bus Samuel Ortiz
2013-02-12 18:37 ` [char-misc-next 12/12 v3] mei: nfc: Implement MEI bus IO ops Samuel Ortiz
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