Re: [PATCH v3 1/5] sc_phy:SmartCard(SC) PHY interface to SC controller

[Satish Patel]

On 5/29/2014 12:23 AM, Greg KH wrote:
> On Wed, May 28, 2014 at 02:27:13PM +0530, Satish Patel wrote:
> > SmartCard controller uses this interface to communicate with
> > SmartCard via PHY
> >
> > Some SmartCard PHY has multiple slots for cards.
> > This inerface also enables controller to communicate
> > with one or more SmartCard connected over phy.
> >
> > interface structure includes following APIs
> > - set/get config
> > - activate/deactivate smart card
> > - warm reset
> > - register_notify (for card insert/remove/overheat)
> > - unregister_notify
> >
> > Signed-off-by: Satish Patel <satish.patel@xxxxxx>
> > ---
> >   Documentation/sc_phy.txt |  171 ++++++++++++++++++++++++++++++++++++++++++++++
> >   include/linux/sc_phy.h   |  136 ++++++++++++++++++++++++++++++++++++
> >   2 files changed, 307 insertions(+)
> >   create mode 100644 Documentation/sc_phy.txt
> >   create mode 100644 include/linux/sc_phy.h
>
> These are .h files, but where is the "api" functions that use
> these structures defined at?
This is like template/wrappers, smart card phy driver will write API 
functions. And smartcard controller will call these functions.
With proposed approach, smartcard controller can communicate with any 
smart card phy (TI/NxP) without change in code. Using DT entry smartcard 
and PHY will gets connected with each other.
Refer diagram given @Documentation/sc_phy.txt.


> confused,
>
> greg k-h
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