Re: [Discuss-gnuradio] max capacity per USB channel

[George Nychis]

Eric Blossom wrote:
> I think there's some confusion here.  When a user requests an rx or tx
> channel with (cmd-allocate-channel invocation-handle
> capacity-reservation), they are given a channel on an exclusive basis.
> The returned channel number is given in the response-allocate-channel
> message.
>
> When they send (cmd-deallocate-channel invocation-handle channel) the
> server (after checking that this port actually _does_ own channel)
> frees the channel and gives the associated capacity reservation back to
> the pool.
>
> > So then is it required for the requester to keep track of how much they 
> > requested to pass to our deallocation method?
>
> No, the server keeps track of how much it assigned to each rx and tx
> channel.
>
> Does this make sense?

OK this is starting to make more sense now.  I just want to make sure I have 
this 100%.

Heres a list of statements, tell me if any are false.

- Once a port owns a channel, no other ports can allocate capacity on it.

- If a channel allocates capacity on a channel, it can make another capacity reservation 
request which can add additional capacity on to its allocated channel through a second 
cmd-allocate-channel request.

- When a deallocation method is called, the channel is specified and all of the capacity 
reserved on the channel is free and the channel is no longer exclusive.

Why not just check which channel the port owns and deallocate it when receiving a 
cmd-deallocate-channel, rather than needing to pass the channel parameter?

- George