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Date:	Thu, 30 Sep 2010 12:49:53 +0530
From:	Kumar SANGHVI <>
To:	Rémi Denis-Courmont 
Cc:	"" <>,
	STEricsson_nomadik_linux <>,
	Sudeep DIVAKARAN <>,
	Gulshan KARMANI <>,
	Linus WALLEIJ <>
Subject: Re: [PATCH v2 1/2] Phonet: Implement Pipe Controller to support
 Nokia Slim Modems

Hi Rémi Denis-Courmont, 

On Wed, Sep 29, 2010 at 20:21:17 +0200, Rémi Denis-Courmont wrote:
> It seems to me that you really want to implement the connect() socket call, so 
> that one of the two endpoints will stand up for the missing controller.

Yes, implementing connect() socket call would be nice.

> That's 
> still much cleaner than CREATE and DESTROY ioctl()'s.

I have not introduced any new ioctl()'s as part of Pipe controller
as socket options.
So, user-space can call setsockopt for creating/enabling or
disabling/destroying pipe.

Regarding implementing connect() socket call, few queries:
1. It should carry out all the same steps which I am currently doing as part
   of PIPE_CREATE socket option, right?
2. Currently, as part of Pipe controller implementation, user-space
   follows below sequence:-

   In the phonet stack pipe controller logic, we wait for PEP_CONNECT_RESP
   from host-pep (GPRS socket or video telephony socket is a host-pep.
   pep_reply sends out the PEP_CONNECT_RESP) and remote-pep (modem),
   negotiate the best flow-control to be used, and then send
   PIPE_CREATED_IND, with selected flow-control to both pipe end-points.

   I am not sure how the sequence would be when using the connect() socket

Thanks for your inputs.

Thanks & regards,
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