Re: [lwip-users] low_level_output question

[Kieran Mansley]

On Tue, 2009-04-07 at 09:39 +0200, Fabian Koch wrote:
> I propose we do either of the following: 
> 
> 1) In the ethernetif-skeleton explicitly document the behavior and
> tell the developer to memcpy the data if their transmission is async. 
> 2) See 1), but tell the developer to increment the reference count and
> pbuf_free() themselves (probably faster than memcpy) 

Those are fine: more documentation is always good.

> 3) Remove the freeing of the pbuf after handing it over to the driver
> layer and document that and leave it to the driver developer to
> pbuf_free() after the xmit is really done 

I don't like that one.  It's essentially changing the driver/stack
interface, and there may be reasons why the stack wants to keep the pbuf
around without it being freed.

Kieran