On Monday 13 June 2011 05:18:04 Wilkinson, Alex wrote:
>     0n Sun, Jun 12, 2011 at 10:45:44PM +0200, Hans Petter Selasky wrote:
>     >Also try to set the:
>     >
>     >hw.usb.ehci.iaadbug=1
> 
> erm, what is meant by:
> 
>    #sysctl -d hw.usb.ehci.iaadbug
>     hw.usb.ehci.iaadbug: Enable doorbell bug workaround
> 
> doorbell ?
> 
>    -Alex

Doorbell is an attribute for a DMA schedule synchronization mechanism.

--HPS
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