R16 android4.4常见问题

一.增加spi

在内核中添加spi 驱动

$cd lichee/linux-3.4

$make ARCH=arm 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

添加以下这两句

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);