|
|
|
|
Description of the patch sets
|
|
|
|
|
-----------------------------
|
|
|
|
|
|
|
|
|
|
This repository has two sets of patches - one set for the keyboard
|
|
|
|
|
changes and one for turning off the battery validation. The battery
|
|
|
|
|
patches are disabled by default, but are easy to enable.
|
|
|
|
|
|
|
|
|
|
Any combination of the two sets of patches can be enabled or disabled
|
|
|
|
|
(even including a version with no patches at all - to revert all changes)
|
|
|
|
|
|
|
|
|
|
After changing the configuration, you will need to build the patched EC
|
|
|
|
|
image as normal.
|
|
|
|
|
|
|
|
|
|
### KEYBOARD patchset
|
|
|
|
|
|
|
|
|
|
Applying this set of patches will adjust your Embedded Controller to support
|
|
|
|
|
the slightly different keymapping used with a xx20 keyboard. If you prefer
|
|
|
|
|
to use the older 7-row keyboard instead of the newer xx30 6-row keyboard, then
|
|
|
|
|
you want this patchset enabled. It is enabled by default.
|
|
|
|
|
|
|
|
|
|
### BATTERY patchset
|
|
|
|
|
|
|
|
|
|
Applying this set of patches will disable the check that the system makes for
|
|
|
|
|
Lenovo original batteries. If you wish to use aftermarket batteries, then
|
|
|
|
|
you want to enable this patchset. It is disabled by default.
|
|
|
|
|
|
|
|
|
|
Note that this authentic battery check was done by Lenovo for a good reason
|
|
|
|
|
as aftermarket battery construction and quality is highly variable. There
|
|
|
|
|
have been a number of people who have discovered that their aftermarket
|
|
|
|
|
battery is not working even after installing this patch and (so far) they
|
|
|
|
|
have all found that the battery itself was broken.
|
|
|
|
|
|
|
|
|
|
Configuring which patches are used
|
|
|
|
|
----------------------------------
|
|
|
|
|
|
|
|
|
|
There are several makefile targets that exist to help you configure which
|
|
|
|
|
patches are enabled. Choose one or more of the following commands to
|
|
|
|
|
configure as you want:
|
|
|
|
|
|
|
|
|
|
make patch_enable_battery clean # Uses the battery validate patch
|
|
|
|
|
make patch_disable_battery clean # Turns off the battery validate patch
|
|
|
|
|
make patch_enable_keyboard clean # Uses the keyboard patches
|
|
|
|
|
make patch_disable_keyboard clean # Turns off the keyboard patches
|
|
|
|
|
|
|
|
|
|
The selected commands from the above list simply need to be typed in exactly
|
|
|
|
|
as shown, at the command prompt, before building the patched image, while
|
|
|
|
|
following the Step-by-step instructions (This is step 6)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Behind the scenes
|
|
|
|
|
-----------------
|
|
|
|
|
|
|
|
|
|
Each hardware and EC firmware version combination needs its own set of
|
|
|
|
|
patches, which are stored in directories called "*.img.d". The Makefile
|
|
|
|
|
defines these patches into named groups ("KEYBOARD" and "BATTERY") which
|
|
|
|
|
can be enabled or disabled via a config file.
|
|
|
|
|
|
|
|
|
|
The enable and disable commands are simply updating the config file with
|
|
|
|
|
the appropriate settings.
|
