On Sat, 18 Feb 2012, Wizard wrote: > All > > I am reading the OHCI specification( seems a little bit old). Yes, it is old. The current version dates back to 1999. The UHCI spec is even older (1996). > In Section 4.2, Endpoint Descriptor Format, there is the EN and FA in DWORD0. > > So these two combined forms the Endpoint address right? Well, they form the address that the hardware has to use in order to send a packet to the endpoint. That's not what we usually mean when we talk about the "endpoint address". > While this is the hardware address, not visible in driver? I don't understand your question. Of course these fields are visible to the driver. If the ohci-hcd driver didn't set these fields correctly, the hardware wouldn't work. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
