新手求助RK3399在Android10下的ADB连接该怎样去实现呢

1

SDK：版本号Android10.0
adb工具下载地址：
https://developer.android.google.cn/studio/releases/platform-tools?hl=en


But if you want just these command-line tools, use the following links:


Download SDK Platform-Tools for Windows
Download SDK Platform-Tools for Mac
Download SDK Platform-Tools for Linux


31.0.2 (April 2021)
adb
Support forwarding to vsock on linux.
Fix bug in adb track-devices where devices over wireless debugging wouldn't immediately receive updates.
Implement preliminary support for mDNS device discovery without a separately installed mDNS service. This is currently disabled by default, and can be enabled by setting the environment variable ADB_MDNS_OPENSCREEN to 1 when starting the adb server.
fastboot
Don't fail when unable to get boot partition size.
Derive device locked state from property instead of parsing the kernel command line.


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adb shell
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console:/ $


console:/ $ [ 3258.571344] type=1400 audit(1619416953.712:120): avc: denied { getattr } for comm="ndroid.settings" path="/sys/devices/platform/ff770000.syscon/ff770000.syscon:u***2-phy@e450/otg_mode" dev="sysfs" ino=14198 scontext=u:r:system_app:s0 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1


[ 3258.571416] type=1400 audit(1619416960.643:121): avc: denied { write } for comm="Thread-2" name="otg_mode" dev="sysfs" ino=14198 scontext=u:r:system_app:s0 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1


[ 3258.581380] xhci-hcd xhci-hcd.5.auto: remove, state 4


[ 3258.581462] u*** u***8: USB disconnect, device number 1


[ 3258.584348] xhci-hcd xhci-hcd.5.auto: USB bus 8 deregistered


[ 3258.589484] xhci-hcd xhci-hcd.5.auto: remove, state 4


[ 3258.589538] u*** u***7: USB disconnect, device number 1


[ 3258.591488] xhci-hcd xhci-hcd.5.auto: USB bus 7 deregistered


[ 3259.852864] phy phy-ff770000.syscon:u***2-phy@e450.2: charger = USB_SDP_CHARGER


[ 3260.169861] android_work: sent uevent USB_STATE=CONNECTED


[ 3260.187385] configfs-gadget gadget: high-speed config #1: b


[ 3260.187895] android_work: sent uevent USB_STATE=CONFIGURED


console:/ $




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adb shell
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PC（WIN10）的电脑发现AIO-3399J开发板：
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设备已准备就绪：
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点击右下角可以：弹出MTP
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现象：u***3.0接口用u***线连接电脑无法识别


原因：android10使用kernel4.19和android9使用kernel4.4的dts设置有区别：


1. DWC3 的power-domains属性，resets 属性，extcon 属性 引用位置不同。在Linux-4.4内核，这
三个属性是放在 DWC3 控制器的父节点（u***drd3），而在Linux-4.19内核，这三个属性移到了
DWC3 控制器的子节点（u***drd_dwc3）。
2. 在配置 Type-C to Type-A USB 2.0/3.0 OTG DTS 时，Linux-4.19内核需要在USB 控制器子节点
（u***drd_dwc3）中增加 extcon 属性的配置，才能支持软件切换OTG 模式，而Linux-4.4 内核无
此要求。


修改代码：


V:rk3399_q_testkernelarcharm64bootdtsrockchiprk3399-tve-ind3399a.dtsi


&u***drd_dwc3_0 {undefined
    status = "okay";
    dr_mode = "otg";
    extcon = <&u2phy0>;    //加这一句
};
V:rk3399_q_testdevicerockchiprk3399init.rk3399.rc


# update cpusets feature nodes for rk3399 tablet
    write /dev/cpuset/foreground/cpus 0-5
    write /dev/cpuset/foreground/boost/cpus 4-5
    write /dev/cpuset/background/cpus 0
    write /dev/cpuset/system-background/cpus 0-3
    write /dev/cpuset/top-app/cpus 0-5
    write /sys/devices/system/cpu/cpufreq/policy4/interactive/target_loads "65 1008000:70 1200000:75 1416000:80 1608000:90"
    write /sys/devices/platform/ff770000.syscon/ff770000.syscon:u***2-phy@e450/otg_mode otg//加这一句
参考：Rockchip_RK3399_Developer_Guide_USB_DTS_CN_V1.3