mail-complaints-to="news_AT_tioat_DOT_net"   
   From: "Doug Bissett"    
      
   On Tue, 25 Jan 2011 06:39:58 UTC, Lars Erdmann    
   wrote:   
      
   > This new "I am a EHCI controller but I can also handle USB 1.1" thing is   
   interesting.   
   > Let's hope for the best it's completely dealt with in HW ...   
      
   Everything that I have tried, works well, so it does seem to be done    
   properly. Of course, I can't test all possibilities. I do have an    
   antique IBM 8 MB (yes MB) thumb drive, that claims to be USB 1.0, and    
   a couple of mice that claim to be USB 1.1, and they all work.   
      
   My concern, at the moment, would be that the USB 3.0 controllers might   
   do the same thing, and support USB 2.0, 1.1, and 1.0, using only the    
   USB 3.0 driver, and hardware. If that happens,  we may have a problem    
   with supporting it, until we get a USB 3.0 driver working.   
      
   Apparently, the Lenovo ThinkPad T510 was, originally, supposed to have   
   USB 3.0 support, but it was backed out late in the development cycle.    
   I am not sure if the controller can be firmware upgraded to handle USB   
   3.0, or not. If so, it might end up being not usable in eCS, until    
   there is a USB 3.0 driver. Users will have to watch for things like    
   that, and be very careful about updating, until we know more about it.   
   Meanwhile, it looks like somebody had better start looking at    
   developing a USB 3.0 driver (which needs to be done anyway).     
   Hopefully, it will be a simple extension to the EHCI driver, but I    
   wouldn't bet on it.   
      
   --    
   From the eComStation of Doug Bissett   
   dougb007 at telus dot net   
   (Please make the obvious changes, to e-mail me)   
      
      
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