On Mon, 6 Sep 2004, Kyle Harris wrote:

> Hi,
> 
> My HC (Cypress CY7C67300) has 2 independent serial engines (SIEs) that each 
> control 2 downstream ports. I currently register each SIE as standalone HCDs, 
> each with 2 ports. The first port for each SIE works fine. But. I'm not sure 
> how to insure both ports of the SIE are registered. Should they each be a 
> virtual root hub? What is the correct way to do this.

Each SIE should be a root hub, not each port.  To insure that all the
ports are registered, all you need to do is have your hub_control()
routine respond to Get-Hub-Descriptor requests with the correct number of
ports in the third byte of the response buffer.

Alan Stern



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