(fwd) empty /sys/power/state?

[Stefan Richter <stefanr@s5r6.in-berlin.de>]

Maybe linux-pm is the more appropriate list for this question:

I wrote at suspend-devel@lists.sourceforge.net:
> What's wrong here?
> 
> # cat /sys/power/state
> # echo mem > /sys/power/state
> -su: echo: write error: No such device
> # uname -a
> Linux mini 2.6.22-rc2 #3 SMP PREEMPT Sat May 19 20:56:46 CEST 2007
> x86_64 Intel(R) Core(TM)2 CPU         T7600  @ 2.33GHz GenuineIntel
> GNU/Linux
> # grep -e _PM -e _ACPI /usr/src/linux/.config
> CONFIG_PM=y
> # CONFIG_PM_LEGACY is not set
> # CONFIG_PM_DEBUG is not set
> # CONFIG_PM_SYSFS_DEPRECATED is not set
> CONFIG_ACPI=y
> CONFIG_ACPI_PROCFS=y
> CONFIG_ACPI_AC=m
> CONFIG_ACPI_BATTERY=m
> CONFIG_ACPI_BUTTON=m
> CONFIG_ACPI_FAN=m
> # CONFIG_ACPI_DOCK is not set
> CONFIG_ACPI_PROCESSOR=m
> CONFIG_ACPI_THERMAL=m
> # CONFIG_ACPI_ASUS is not set
> # CONFIG_ACPI_TOSHIBA is not set
> CONFIG_ACPI_BLACKLIST_YEAR=0
> # CONFIG_ACPI_DEBUG is not set
> CONFIG_ACPI_EC=y
> CONFIG_ACPI_POWER=y
> CONFIG_ACPI_SYSTEM=y
> CONFIG_X86_PM_TIMER=y
> # CONFIG_ACPI_CONTAINER is not set
> # CONFIG_ACPI_SBS is not set
> CONFIG_X86_ACPI_CPUFREQ=m
> # CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
> # CONFIG_THINKPAD_ACPI is not set
> CONFIG_ATA_ACPI=y
> # CONFIG_FB_PM2 is not set
> # CONFIG_FB_PM3 is not set
> 

Thanks for advice,
-- 
Stefan Richter
-=====-=-=== -=-= =--==
http://arcgraph.de/sr/