仿冒声卡驱动（vt2020 Realtek系列很多型号）
我自己的声卡是via vt2020，主板是G41mt-d3p；装的是10.7.3，目前系统有点不稳定，猜测是voodoohda的问题，所以想用applehda试试，结果发现Lion不支持vt2020，现在网上资源都是针对10.8.5以上的。不过我还是都试了一遍，都不行。自己又不想升级系统（硬件不行）下面这个链接是我最后试验驱动时发现的。不适合我，但应该对装Yosemite的朋友有帮助，下载链接是https://bitbucket.org/insanelydeepak/patched-applehda-yosemite-10.10.2文件大小是76M。太大了，不提供附件下载了。下面的是文件包里面的Readme，看看是否适合你的需要。如果你不能下载，可以留言，把你的声卡型号告诉我，我直接上传。
# Patched AppleHDA Yosemite 10.10.2
Collection of Corrected or Patched AppleHDA for Mac OS X Yosemite Hackintosh's.
#### New Users/First Experience with AppleHDA:
1 - Identifying Your Audio codec
1 - Read the manufacturer's manual or use DPCI Manager.
2 - currently supported Codec are: (Realtek,IDT,ADI,Via,Conexant).
3 - Example of DEVICE_ID Vs Codec_id:10ec0887=ALC887.
####Requirements:
1 - OSX Versions Supported:
1- Supported Versions of System are: Yosemite 10.10
2- You must have one of the following DEVICE_ID/Codec name described below or attached here:
1 - Realtek ALC to Desktop's: ALC662,ALC882,ALC883,ALC887,ALC888,ALC889,ALC889A...etc
2 - ADI for Desktop's: ADI1988B, ADI2000B.
3 - VIA Desktop's: VT2020_2021
4 - Realtek ALC to Laptop's: ALC233,ALC268,ALC269,ALC270,ALC272,ALC275,ALC280...etc
5 - Conexant for laptop's: CX20583,CX20585,CX20588,CX20590,CX20752,CX20756...etc
6 - RTD for Laptop's: RTD 92HD66C3/65,IDT92HD75B3X5,IDT92HD81B1X5,IDT92HD87B1...etc
7 - VIA Laptop's: VT1802/VT1802p.
8 - Cirrus Logic Laptop's: CS4213.
####Determining The Number Layout_Id/Audio_Id By Ports Motherboard:
1 - Audio_ID's / LAYOUT-ID's:
1 - Always Read README.txt included with Kext
2 - All-in-One Versions Contains Various patches, so try different Layout_ID as mentioned in README.txt
#### Injection Of Your Audio_Id or Layout_ID:
1 - Methods: Clover/DSDT/HDEnabler/Chameleon.
1 - DSDT/HDEF/Layout_id = Audio_id
2 - HDAEnablerX.kext (where "X" corresponds to the number of Audio_ID / desired Layout_ID)
3 - Clover/Config.plist/Devices/Audio/Inject=Audio_ID
4 - Chameleon Installer/Customize/Setting/HDEF Layout/
Note: Use only one of the methods described above.
#### Even Codec Model/Different Pinconfigs And Pathmaps:
1 - Examples Vs Solution:
1 - Internal Microphone do not work or Headphones.
2 - Install AIO versio of AppleHDA and Read README.txt inject Layout_ID , Choose which suites you better.
Note: I have created All-In-One AppleHDA which contains Various PathMap and Pinconfigs for different Output and Inputs .
You have just changed Layout_ID as mentioned in README.txt file and get desired Output and Inputs.
#### Installation:
1 - Requirements/mode:
1 - Install in S/L/E using iKext or KextWizard.
2 - After installing repair permissions and rebuild caches use an application of your choice.
3 - Use this flag is mandatory:kext-dev-mode=1 (Only For Yosemite)
#### Correction To Get Sound After Waking From Sleep:
1 - Read with attention the two guides below
1- (https://github.com/Dolnor/EAPD-Codec-Commander)
2- (http://forum.osxlatitude.com/index.php?/topic/3084-eapdjack-sense-fix-no-audiojack-sense-issue-after-sleep/)
####The credit will go for all these people:
Mirone , Kabyl, TimeWalker75a, EMlyDinESH, Bcc9 and Others Who Contributed to Patching AppleHDA
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