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03-13-2010, 02:14 PM
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Cheetah
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Join Date: Mar 2010
Posts: 2
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Hi kizman,
Quote:
Originally Posted by kizwan
By looking at USB4 device in DSDT, there is _PSW entry that can be manipulate. This is the entry for USB4 device in DSDT after modifying the argument (set to 0):-
Code:
Device (USB4)
{
Name (_ADR, 0x001D0003)
OperationRegion (U4CS, PCI_Config, 0xC4, 0x04)
Field (U4CS, DWordAcc, NoLock, Preserve)
{
U4EN, 2
}
Name (_PRW, Package (0x02)
{
0x0E,
0x03
})
Method (_PSW, 1, NotSerialized)
{
If (Arg0)
{
// Store (0x03, U4EN)
// Disable USB4 capability to wake a sleeping system
Store (0x00, U4EN)
}
Else
{
Store (0x00, U4EN)
}
}
Method (_S3D, 0, NotSerialized)
{
Return (0x02)
}
Method (_S4D, 0, NotSerialized)
{
Return (0x02)
}
}
The last FIX enable the computer to sleep again.
kizwan |
can you tell me what modification should I apply to this code to disable sleep for a device in usb2 ?
regards,
Vincent
Last edited by barnum; 03-13-2010 at 02:21 PM.
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