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<DIV>I am trying to enable S3 wakeup from USB keyboard in Linux.</DIV>
<DIV>After boot, if i execute in terminal command «cat /proc/acpi/wakeup» i
get:<BR><BR><BR>Device S-state Status Sysfs node<BR>PCI0 S5 disabled
no-bus:pci0000:00<BR>HDEF S4 disabled pci:0000:00:1b.0<BR>RP01 S5 disabled
pci:0000:00:1c.0<BR>RP02 S5 disabled pci:0000:00:1c.1<BR>RP03 S5 disabled
pci:0000:00:1c.2<BR>RP04 S5 disabled pci:0000:00:1c.3<BR>RP05 S5 disabled
pci:0000:00:1c.4<BR>RP06 S5 disabled pci:0000:00:1c.5<BR>USB1 S3 disabled
pci:0000:00:1d.0<BR>USB2 S3 disabled pci:0000:00:1d.1<BR>USB3 S3 disabled
pci:0000:00:1d.2<BR>USB4 S3 disabled pci:0000:00:1d.3<BR>EHC1 S3 disabled
pci:0000:00:1d.7<BR>MODM S4 disabled <BR>COMA S3 disabled pnp:00:08<BR>COMB S3
disabled pnp:00:09<BR><BR>At my guess, current devices are devices from DSDT
table with _PRW method. But for some reason (why?) wakeup for them disabled by
default.<BR>I can enable wakeup for keyboard (in my case it is USB1)
with:<BR><BR><BR>echo PCI0 > /proc/acpi/wakeup<BR><BR>echo USB1 >
/proc/acpi/wakeup<BR><BR><BR>Throught some experiments i figured out, that these
commands says to OS, that it should enable appropriate bits in ACPI GPE0_EN
register before going to S3 (what bits exactly is defined in PCI0._PRW and
USB1._PRW)<BR><BR>But this is not the end. I think OS power off USB controller
when it goes to S3. To fix this i found device USB number from dmesg:<BR><BR>[
2.724374] input: LITEON Technology USB Multimedia Keyboard as
/devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input6<BR><BR>And
executed command «echo enabled >
/sys/bus/usb/devices/2-2/power/wakeup»<BR><BR>And only now wakeup from USB fully
works.<BR><BR>My question is, how i should change DSDT/BIOS, to avoid all of
these commands? </DIV>
<DIV>I think main problem is a lack of something in DSDT. </DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Some fragments from current DSDT:</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>....</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Device (USB1)<BR>{<BR>
Name(_ADR, 0x001D0000)</FONT></DIV>
<DIV><FONT size=2 face=Arial> Name(_PRW,
Package(0x02){ 0x03, 0x03 })</FONT></DIV>
<DIV><FONT size=2 face=Arial>
Method(_S3D,0)</FONT></DIV>
<DIV><FONT size=2 face=Arial> {</FONT></DIV>
<DIV><FONT size=2 face=Arial>
Return(2)</FONT></DIV>
<DIV><FONT size=2 face=Arial> }<BR>}</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>....</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Scope (\_GPE)<BR>{</FONT></DIV>
<DIV><FONT size=2 face=Arial>...</FONT></DIV>
<DIV><FONT size=2 face=Arial> // USB1<BR> Method (_L03, 0)<BR>
{<BR> Notify (\_SB.PCI0.USB1, 0x02)<BR>
}</FONT></DIV>
<DIV><FONT size=2 face=Arial>...</FONT></DIV>
<DIV><FONT size=2 face=Arial>}</FONT></DIV></BODY></HTML>