Re: [lwip-users] Best way to send sensor data from RAW sockets

[address@hidden]

Paul Archer wrote:
> I am now trying to setup a raw UDP socket that will accept audio data
> from a queue and send it out over UDP.
> I have the receive side working well with raw sockets and can
> correctly receive and hand the data off to the DAC.

Just for clarity: I'm assuming you mean using a raw API udp pcb here (as 
opposed to "BSD" sockets in raw mode, i.e. not UDP or TCP but another, 
application-managed transport protocol)?

> My question is, what is the best way for my audio data to get into a
> packet and send it?

I guess the best way is still using sys_timeout(). There's of course 
nothing wrong with correct programming layering. As it seems you are 
currently using some kind of queue for that, you can either
- wait on that queue and then call tcpip_callback() when you know you 
want to send a packet or
- convert your API from queue handling to a more generic interface, then 
your queue can be one kind to implement that interface, collecting 
packet data and calling tcpip_callback() to send a packet would be 
another way to implement that interface.

Simon