[LPIA Hardy LUM] Disable RTC wake alarm to reduce power in Hibernate - attempt #2
Stefan Bader
stefan.bader at canonical.com
Wed Mar 18 10:43:42 UTC 2009
Colin Ian King wrote:
> Attempt #2 following Tim's recommendations.
>
> https://bugs.launchpad.net/dennis/+bug/337943
>
> Note: This fix comes in 2 patches, the first is general code tidyup
> (whitespace/tab indentation, formatting) and the second is the fix to
> reduce power consumption during hibernate.
>
> Bug: LP#337943
>
> LPIA Hardy Lum
>
> Add sysfs control to enable or disable RTC Event Enable (RTC_EN) bit
> of port ACPI PM1a_EVT_BLK because the BIOS overlooked this
> functionality on the HP Mini. Disabling this before hibernate saves
> several mAh.
>
> Note that this extends the existing power management tweaks for this
> particular netbook specific module.
>
> Attached:
>
> Patch 1 - code tidy up
> Patch 2 - fix to reduce power consumption
>
>
- Might this be SAUCE?
- /me shakes his head on the SENSORS_DEVICE_ATTR declaration
- /me cannot find where the rtc attribute is added to the drivers attributes.
Bit I might need new glasses...
--
When all other means of communication fail, try words!
More information about the kernel-team
mailing list