[Discuss-gnuradio] Re: USRP with USB/IP

[Firas Abbas]

Hi,

--- On Sat, 6/6/09, Alberto Trentadue <address@hidden> wrote:
> On Fri, 2009-06-05 at 12:14 -0700,
> Firas Abbas wrote:
> > Hi,
> > 
> > --- On Fri, 6/5/09, Patrick Strasser <patrick. address@hidden wrote:
> > > Hello!
> > > 
> > > ednet[1] and RaidSonic[2] sell boxes that can forward USB ports over 
> via the Linux USB/IP[3] system.
> > > 
> > > Patrick
> > > 
> > 
> > From the web site the transfer rate of these boxes is 10/100Mb/s. So 
> > theoretically it should transfer a maximum of 12.5MByte/sec which is far 
> > below the required 32Mbyte/sec of USRP1.
> 
> Hello Firas.
>
> Just for my understanding:
> The 32Mbyte/s requirement is for a full speed - 4 channel USRP  operation.

NO.

> But if we suppose a simpler application, e.g. 1 TX/RX
> channel only, wouldn't this fit in the USB/IP?


 The 32MB/s is required for 1,2 and 4 channels. For 1 Channel when you sustain 
32MB/s, this means that your dealing with 8M complex samples. For 2 channels, 
this means that you are dealing with 4M complex samples for each channel, 
......etc.

> 
> Thanks 
> for your reply.
> BR
> Alberto



Best Regards,

Firas