Re: [PATCH 2/3] staging: greybus: Add Greybus netlink driver

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On Fri, May 05, 2017 at 11:38:38AM +0200, Alexandre Bailon wrote:
> 
> 
> On 04/18/2017 01:59 PM, Greg KH wrote:
> > On Sun, Mar 26, 2017 at 06:58:24PM +0200, Alexandre Bailon wrote:
> > > Currently, the only hd controller supported by Greybus is the es2
> > > controller which only support is mainly a bridge between USB and UniPro.
> > > In order to use Greybus on devices that do not support UniPro,
> > > add a the Greybus netlink hd controller.
> > > 
> > > By using Generic Netlink, userspace can act as a bridge between Greybus
> > > and any kind of bus supported by the platform (e.g. Bluetooth).
> > > In addition, this add an easy way to implement some component such as
> > > SVC which is required by Greybus though it may not be available on
> > > every platforms.
> > Very cool stuff, any hints on how to use this over netlink?  Will the
> > network developers get mad at this as an abuse of the transport?
> Currently, I haven't documented anything.
> The only hint I can gives is to take a look
> https://github.com/anobli/gbridge/blob/master/controllers/gb_netlink.c,
> which is source code of gbridge that deals with generic netlink.
> I think I should have a least documented the data format generic netlink
> operations.
> 
> I'm not sure to understand your point about the abuse of the transport.

I am not familiar if the network developers like people adding new users
of the transport.  For some reason I didn't think they did, but I might
be totally wrong and thinking of something else.

> > > +	  To compile this code as a module, chose M here: the module
> > > +	  will be called gb-netlink.ko
> > Doesn't this need to depend on netlink to build properly?
> I think so. I will check.

Thanks, I'll wait for your new versions :)

greg k-h
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