RE: [lwip-users] low_level_output question

[Bill Auerbach]

Yes, it will work this way.  In fact, the Stellaris lwIP Ethernet driver is 
done just like this.

Bill

>-----Original Message-----
>From: address@hidden
>[mailto:address@hidden On
>Behalf Of John Kennedy
>Sent: Thursday, April 02, 2009 6:16 PM
>To: address@hidden
>Subject: [lwip-users] low_level_output question
>
>Hi,
>I'm porting lwip (using an RTOS and the socket API) and I have a
>question regarding the low_level_output function.
>If I can't send the pbuf immediately (netif busy), to avoid copying the
>pbuf, I'd like to do the following:
>*       Increment the reference count to prevent lwip from re-using or
>freeing the pbuf.
>*       Put the pbuf on my output queue and try to send it later.
>*       Return ERR_OK.
>Later when the netif is not busy...
>*       Remove the pbuf from my output queue.
>*       Send the pbuf.
>*       Free the pbuf.
>
>Will this scheme work with lwip?
>
>Thanks,
>John Kennedy
>
>
>
>
>
>________________________________________
>John Kennedy
>
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