[ltp] Powermanagement - serial ports

Henrique de Moraes Holschuh linux-thinkpad@linux-thinkpad.org
Mon, 22 Jun 2009 00:44:46 -0300


On Wed, 17 Jun 2009, Henrique de Moraes Holschuh wrote:
> > Look for ACPI power resources. There should be one for the serial ports.
> 
> There is only one ACPI power resource in T4x ThinkPads ("PUBS") for the USB
> ports, AFAIK.  If you have more, please tell me about it :)

The ACPI nodes for the serial ports, parallel port and some others, have
_DIS support.  This allows the operating system to disable them.  Linux
doesn't.

-- 
  "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