R16 android4.4 常见问题参考手册

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

  
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  

修改成

   
[spi_board0]
modalias      = "spidev"  
sflash_size   = 32  
max_speed_hz  = 50000000  
bus_num       = 0  
chip_select   = 0  
mode          = 0  

二）以太网不能用

在内核增加驱动

 
$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  

三）默认勾选使用以太网

   
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)