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平台

RK3588 + Android 12

Android 调试桥 (adb)
    Android 调试桥 (adb) 是一种功能多样的命令行工具，可让您与设备进行通信。adb 命令可用于执行各种设备操作，例如安装和调试应用。adb 提供对 Unix shell（可用来在设备上运行各种命令）的访问权限。它是一种客户端-服务器程序，包括以下三个组件：

• 客户端：用于发送命令。客户端在开发机器上运行。您可以通过发出 adb 命令从命令行终端调用客户端。
• 守护程序 (adbd)：用于在设备上运行命令。守护程序在每个设备上作为后台进程运行。
• 服务器：用于管理客户端与守护程序之间的通信。服务器在开发机器上作为后台进程运行。

AndroidStudio 中显示的设备名称

第一个 rockchip 来自系统属性: ro.product.product.manufacturer
第二个一般是ro.product.model
PS 如果 manufacturer 和 model 一样, 那么会只显示一个的值.

ADB使能和控制USB调试

• ADB调试的开关:
  系统属性persist.sys.usb.config值里是否包含adb
  系统设置数据库Settings.Global.ADB_ENABLED值是否为非0

frameworks/base/services/core/java/com/android/server/adb/AdbService.java

    private static final String USB_PERSISTENT_CONFIG_PROPERTY = "persist.sys.usb.config";private void initAdbState() {try {/** Use the normal bootmode persistent prop to maintain state of adb across* all boot modes.*/mIsAdbUsbEnabled = containsFunction(SystemProperties.get(USB_PERSISTENT_CONFIG_PROPERTY, ""),UsbManager.USB_FUNCTION_ADB);mIsAdbWifiEnabled = "1".equals(SystemProperties.get(WIFI_PERSISTENT_CONFIG_PROPERTY, "0"));// register observer to listen for settings changesmObserver = new AdbSettingsObserver();mContentResolver.registerContentObserver(Settings.Global.getUriFor(Settings.Global.ADB_ENABLED),false, mObserver);mContentResolver.registerContentObserver(Settings.Global.getUriFor(Settings.Global.ADB_WIFI_ENABLED),false, mObserver);} catch (Exception e) {Slog.e(TAG, "Error in initAdbState", e);}}private void setAdbEnabled(boolean enable, byte transportType) {if (DEBUG) {Slog.d(TAG, "setAdbEnabled(" + enable + "), mIsAdbUsbEnabled=" + mIsAdbUsbEnabled+ ", mIsAdbWifiEnabled=" + mIsAdbWifiEnabled + ", transportType="+ transportType);}if (transportType == AdbTransportType.USB && enable != mIsAdbUsbEnabled) {mIsAdbUsbEnabled = enable;} else if (transportType == AdbTransportType.WIFI && enable != mIsAdbWifiEnabled) {mIsAdbWifiEnabled = enable;if (mIsAdbWifiEnabled) {if (!AdbProperties.secure().orElse(false) && mDebuggingManager == null) {// Start adbd. If this is secure adb, then we defer enabling adb over WiFi.SystemProperties.set(WIFI_PERSISTENT_CONFIG_PROPERTY, "1");mConnectionPortPoller =new AdbDebuggingManager.AdbConnectionPortPoller(mPortListener);mConnectionPortPoller.start();}} else {// Stop adb over WiFi.SystemProperties.set(WIFI_PERSISTENT_CONFIG_PROPERTY, "0");if (mConnectionPortPoller != null) {mConnectionPortPoller.cancelAndWait();mConnectionPortPoller = null;}}} else {// No changereturn;}if (enable) {startAdbd();} else {stopAdbd();}for (IAdbTransport transport : mTransports.values()) {try {transport.onAdbEnabled(enable, transportType);} catch (RemoteException e) {Slog.w(TAG, "Unable to send onAdbEnabled to transport " + transport.toString());}}if (mDebuggingManager != null) {mDebuggingManager.setAdbEnabled(enable, transportType);}}private void startAdbd() {SystemProperties.set(CTL_START, ADBD);}private void stopAdbd() {if (!mIsAdbUsbEnabled && !mIsAdbWifiEnabled) {SystemProperties.set(CTL_STOP, ADBD);}}

使用设置系统属性ctl.start启动和ctl.stop停止adbd服务

• 增加系统控制是否启用USB调试

packages/modules/adb/daemon/main.cpp

int adbd_main(int server_port) {umask(0);signal(SIGPIPE, SIG_IGN);
//.....
#if defined(__ANDROID__)bool adb_usb_on = android::base::GetBoolProperty("persist.adb.adb_usb", false);if (access(USB_FFS_ADB_EP0, F_OK) == 0 && adb_usb_on) {// Listen on USB.usb_init();is_usb = true;}
#endif

修改系统属性后, 重启adbd服务生效.

• 默认网络ADB调试端口
  系统属性service.adb.tcp.port

修改 packages/modules/adb/daemon/main.cpp 需注意, 可能导致烧录后不能启动, 卡在下面LOG:

emmc_point is /dev/block/mmcblk0
sd_point is (null)
sd_point_2 is (null)
read cmdline
I:Boot command: boot-recovery
I:Got 2 arguments from boot message
ensure_path_mounted path=/cache/recovery/last_locale 
I:[libfs_mgr]superblock s_max_mnt_count:65535,/dev/block/by-name/cache
I:[libfs_mgr]__mount(source=/dev/block/by-name/cache,target=/cache,type=ext4)=0: Success
Loading make_device from librecovery_ui_ext.so
W:Failed to read max brightness: No such file or directory
I:Screensaver disablederasing_text: zh (81 x 38 @ 5031)no_command_text: zh (111 x 38 @ 5031)error_text: zh (65 x 38 @ 5031)
W:Failed to load bitmap cancel_wipe_data_text for locale zh-Hans-CN (error -1). Falling back to use default locale.
E:Failed to load bitmap cancel_wipe_data_text for locale en-US (error -1)
W:Failed to load bitmap factory_data_reset_text for locale zh-Hans-CN (error -1). Falling back to use default locale.
E:Failed to load bitmap factory_data_reset_text for locale en-US (error -1)
W:Failed to load bitmap try_again_text for locale zh-Hans-CN (error -1). Falling back to use default locale.
E:Failed to load bitmap try_again_text for locale en-US (error -1)
W:Failed to load bitmap wipe_data_confirmation_text for locale zh-Hans-CN (error -1). Falling back to use default loc.
E:Failed to load bitmap wipe_data_confirmation_text for locale en-US (error -1)
W:Failed to load bitmap wipe_data_menu_header_text for locale zh-Hans-CN (error -1). Falling back to use default loca.
E:Failed to load bitmap wipe_data_menu_header_text for locale en-US (error -1)
I:Starting recovery (pid 258) on Fri Nov 17 01:15:53 2023I:locale is [zh-Hans-CN]
SELinux: Loaded file_contexts