[ltp] Re: is my usb controller dead?

Henrique de Moraes Holschuh linux-thinkpad@linux-thinkpad.org
Wed, 26 Apr 2006 19:32:58 -0300


On Tue, 25 Apr 2006, Bernhard Sputh wrote:
> Nevertheless, the electrical specifications should not have changed between 
> USB 0.9, 1.0, 1.1 and USB 2.0, so I still don't understand why the USB 
> circuitry of the newer models seems to fry more easily than in the old 
> models.

They probably don't have good enough static-discharge protection, and the
new USB2 driver ASICs (or whatever sits right behind the USB connector) may
be far more sensitive to it than the old USB1.1 ones.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh