About This File
This is my Mountain Lion Package.
Asus K53SC Model:
Intel Core i3 2330M 2.2GHz Proccessor
Intel HD3000 + 520MX Graphics
HITACHI 640GB HD
6GB DDR3 1333MHz
Atheros AR5B195 Wireless Combo(AR9285 Wifi + AR3011 BlueTooth)
Realtek Gigabit LAN + Audio ALC 269 + USB Card Reader
Asus Webcam VGA (Camtwist App)
Asmedia USB 3.0
HDMI With Audio
VGA and Sleep
Elan Touchpad with Multitouch(see at the bottom link)
Among these few issues
1. GT520MX - No Optimus Graphics switching
2. Realtek Card Reader (PID:0139) is not working.
Other than above everything is working even Native Speedstep and Power management.
I'm using Chameleon Bootloader.
Update: New PS2 Controller kext which is newer and smooth.
After Sleep press ALT button to get the keys work as alphabets since it changes to symbols in sleep.
Update#2: Fixed and Updated New USB3.0 Kexts
Update#3: Fixed HDMI audio and VGA
Update#4: Fixed Audio issue after sleep with AppleHDA (Re-uploaded with bug Fixing)
Update#5: Fixed FN Keys Audio(F10+F11+F12) and Media Keys(Arrows) with a WMI driver port from linux.
Update#6: Updated Kexts and DSDT - 07/09/12
Update#7 Ported the driver for the elan touchpad from linux.
Update#8 Fixed the SSDT's for i5 and i7 Processor Speedstepping and Powermgmt (files are inside the zip)
Update#9 Updated Kext files to most recent version along with my touchpad driver and WMI driver. (10/24/12)
My other post which may help other
Elantech Touchpad Driver(Only for V3 hardware) for Mac OSX :
Hope it helps some.