[usb] Clarification on USB

[Ravi Kumar <ravikumar_vlsi@yahoo.co.in>]

Hi Folks

I have  a Query on Usb.
suppose host puts IN token and send it  to device .
2.Device takes more than the Bus turn around Time ( or
more than the bit times required to respond )
3.Host wil assume itz the Bus time out and intimate to
software.
4.Assuming this the host wil retry to the same Device
.
5.By that time whn Device responds for the previous IN
token it wil lead to Contention



How the above said Contention is avoided or
controlled.

Regards
Ravikumar
Mob:+91-9840286587
Fone:+91-44-31007603

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