查看“R16 android4.4 常见问题参考手册”的源代码

##'''R16 android4.4 常见问题 '''   
###一）在内核中添加spi驱动  
$cd lichee/linux-3.4
$make ARCH=arm menuconfig 
$lunch astar_parrot-tina   
$make kernel_menuconfig  
Device Drivers --->
SPI support --->
<*>   User mode SPI device driver support       
修改
<pre>  
lichee/tools/pack/chips/sun8iw5p1/configs/evb-30/sys_config.fex  
[spi_board0]  
modalias      = "at25df641"  
sflash_size   = 32  
max_speed_hz  = 50000000
bus_num       = 0  
chip_select   = 0  
mode          = 0  
</pre>  
修改成  
<pre>   
[spi_board0]
modalias      = "spidev"  
sflash_size   = 32  
max_speed_hz  = 50000000  
bus_num       = 0  
chip_select   = 0  
mode          = 0  
</pre>  

###二）以太网不能用   
在内核增加驱动 
<pre> 
$make ARCH=arm menuconfig  
Device Drivers --->
   [*] Network device support --->  
       USB Network Adapters --->
              <*> Multi-purpose USB Networking Frameworksuch as cable modems) 
              <*> SMSC LAN95XX based USB 2.0 10/100 ethernet devices  
</pre> 
###三）默认勾选使用以太网  
<pre>   
1)在frameworks\base\packages\SettingsProvider\res\values\default.xml 
  <bool name="def_ethernet_on">true</bool>  改成true
  <bool name="def_ethernet_mode">true</bool> 添加以下这两句  
     <bool name="def_ethernet_conf">true</bool>
      <string name="def_ethernet_ifname" translatable="false">eth0</string> 
 
2)在frameworks\base\packages\SettingsProvider\src\com\android\providers\settings\DatabaseHelper.java 添加
       loadBooleanSetting(stmt, Settings.Global.ETHERNET_CONF, R.bool.def_ethernet_conf) 
       loadStringSetting(stmt, Settings.Global.ETHERNET_IFNAME, R.string.def_ethernet_ifname) 
</pre>