qq_32017483的博客

echo 195 > /sys/class/gpio/export echo "out" > /sys/class/gpio/gpio195/direction echo "1" > /sys/class/gpio/gpio195/value echo "0" > /sys/class/gpio/gpio195/value

packages/apps/Bluetooth/res/values/config.xml--<bool name="profile_supported_rtkbt">false</bool>++<bool name="profile_supported_rtkbt">true</bool>

em3288_mid_android-7.1\u-boot\include\configs\rk32plat.h/* mod it to enable console commands. */#define CONFIG_BOOTDELAY 0#define CONFIG_DIRECT_LOGO修改CONFIG_BOOTDELAY 后面的值

在SDK中目录添加i2c-tools源码em3288_mid_android-7.1\external\i2c-tools-4.1在 i2c-tools 目录下新建 Android.mk 文件，内容如下：LOCAL_PATH:= $(call my-dir)################### i2c-tools #########################include $(CLEAR_VARS)LOCAL_MODULE_TAGS := engLOCAL_MODULE :=

通过SD Card Formatter工具把update.img镜像烧写到SD卡中。把卡插入rk3288主板中，通过SD烧写。一直打印如下错误：Supported API: 3bSDBoot = 1, sdboot_update_package=1tid in led pthread: -1418852064.SDBoot optarg=(null)start sd upgrade...librkupdate_Start to upgrade firmware...librkupda

确保底层kernel已经配置好了，那么就用logcat打印日志09-16 10:00:03.798 927 944 I bt_osi_thread: run_thread: thread id 944, thread name stack_manager started09-16 10:00:03.798 927 944 I bt_stack_manager: event_init_stack is initializing the stack09-16 10:00:03.79...

配置menuconfig “CONFIG_IIO_TRIGGERED_BUFFER=y” 就编译通过了

[ 99% 1254/1255] glob vendor/*/*/Android.bpninja: error: 'commit_id.xml', needed by 'out/target/product/rk3288/vendor/commit_id.xml', missing and no known rule to make it12:24:53 ninja failed wit...

系统：Android 5.1 同时也适用Android 7.13288板子竖屏时，相机拉伸很严重下面实现了摄像头90 度旋转，旋转角度只需修改orientation。diff --git a/hardware/rockchip/camera/CameraHal/CameraHal_Module.cpp b/hardware/rockchip/camera/CameraHal/...

1.make ARCH=arm menuconfig2.Device Drivers > USB support > USB Serial Converter support<*> USB Prolific 2303 Single Port Serial Driver

build/make/core/Makefile$(INSTALLED_VENDOR_BUILD_PROP_TARGET): $(VENDOR_BUILDINFO_SH) $(intermediate_system_build_prop) @echo Target vendor buildinfo: $@ @mkdir -p $(dir $@) $(hide) echo...

1) device\rockchip\rk3288\device.mkrild.libpath=/vendor/lib/libreference-ril.so \rild.libargs=-d /dev/ttyUSB0 \2) device\rockchip\common\BoardConfig.mk#enable 3g dongle#BOARD_HAVE_DONGLE ?= ...