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Re: [Discuss-gnuradio] Re: [Commit-gnuradio] r4735 - gnuradio/trunk/usrp
Re: [Discuss-gnuradio] Re: [Commit-gnuradio] r4735 - gnuradio/trunk/usrp/doc
Mon, 12 Mar 2007 11:15:50 -0700
On Fri, Mar 09, 2007 at 09:04:33AM -0500, Greg Troxel wrote:
> +This is preliminary design document on the organization of the host
> +component of the USRP inband signaling implementation over USB.
> +Assumptions: we'll have a single usrp_usb_daemon, implemented as an
> +mblock, that will provide the high-level message based interface to
> +the USRP. The daemon will handle all resource allocation, muxing and
> +demuxing for the control and status messages from multiple clients.
> It would be nice if the design for in-band signaling treated USB as
> the (current) special case, and was done with GigE etc. in mind. I
> didn't see anything that jumped out from this viewpoint, but earlier
> is better to avoid trouble.
Yes, that's what's being done. I don't think that it's written down
anywhere, but that's the goal.
> Do you expect that allocation of capacity is anything more than
> internal control within the usrp daemon? That conjures up isochronous
> bus transactions and OS-level reservations, but I don't think you mean
Just an internal control, checking that the total allocation is <= 32MB/s.
Re: [Discuss-gnuradio] Re: [Commit-gnuradio] r4735 - gnuradio/trunk/usrp/doc,
Eric Blossom <=