On Thu, 27 May 2010, Alan Stern wrote:
On Thu, 27 May 2010, Andrew Morton wrote:
https://bugzilla.kernel.org/show_bug.cgi?id=16043
Summary: Resume w/USB remote working in 2.6.33.2, no longer in
2.6.33.10
First I need to back track and fix an error -- it's version 2.6.33.4 that
this no longer works in, not 2.6.33.10 as I had indicated.
/proc/acpi/wakeup doesn't matter. What matters are the power/wakeup
files under /sys.
Ok, all manipulation of /proc/acpi/wakeup is no off, so all devices read
as "disabled".
If you want to enable wakeup, you have to do it manually or from a
boot-time script like /etc/rc.d/rc.local. For example, you might need
to do:
echo enabled >/sys/bus/pci/devices/0000:00:04.0/power/wakeup
The system has been this way a long time, but up until just now it
didn't work correctly.
In my case, "USB1" was the partical device that was waking up the system.
According to /proc/acpi/wakeup, this is what I see:
# grep USB1 /proc/acpi/wakeup
USB1 S4 disabled pci:0000:00:06.0
Now, I perform the following:
# cat /sys/bus/pci/devices/0000\:00\:06.0/power/wakeup
disabled
# echo enabled > /sys/bus/pci/devices/0000\:00\:06.0/power/wakeup
# cat /sys/bus/pci/devices/0000\:00\:06.0/power/wakeup
enabled
Sadly it still will not resume.
Thanks for the tip, in the meantime I will go back to the 2.6.33-2 kernel
and try modifying the /sys.../power/wakeup file in addition to / instead
of the /proc/acpi/wakeup file.
Scott
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