submit urb question (isochronous mode)

I am trying to understand the difference of the following:

video camera -- isochronous mode  --- data only comes into the HOST

polling is done every 1ms


Now for the question

I submit say
10 urbs each with 10 buffers

or

I submit say

100 urb's with 1 buffer each

assume that each buffer is big enough to hold the video frame that is  
received by the host.

so what is the compare and contrast --

I guess that if every buffer is filled each 1ms then my callback is  
called every 1ms for the 100 urb case and every 10ms for the 10urb case

anything else ?



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