如何调试RK3568-ANDROID11-4G-EC20？

首先，要先获得技术支持

步骤一，先在USB模块上完成4G

步骤二，移植到PCIE座子上

磨刀不费砍材功，请先拿到技术文档支持，我的参考是：Quectel_Android_RIL_Driver_V3.3.62_master_beta(支持EC200A).tgz

主要文件：Quectel_Android_RIL_Driver_V3.3.62_master_beta(支持EC200A)libquectel-rilarm64-v8alibreference-ril.so

主要文档：Quectel_Android_RIL_Driver_User_Guide_V2.0.pdf

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PCIE原理图部分



调通USB转接小板之后，直接接在PCIE座子上就有信号出现了

//设备打印信息
[    7.643000] u*** 1-1.7: new high-speed USB device number 3 using ehci-platform
[    7.749890] u*** 1-1.7: New USB device found, idVendor=2c7c, idProduct=0125, bcdDevice= 3.18
[    7.749955] u*** 1-1.7: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    7.749981] u*** 1-1.7: Product: Android
[    7.750003] u*** 1-1.7: Manufacturer: Android
[    7.752548] option 1-1.7:1.0: GSM modem (1-port) converter detected
[    7.753213] u*** 1-1.7: GSM modem (1-port) converter now attached to ttyUSB0
[    7.753814] option 1-1.7:1.1: GSM modem (1-port) converter detected
[    7.754974] u*** 1-1.7: GSM modem (1-port) converter now attached to ttyUSB1
[    7.755636] option 1-1.7:1.2: GSM modem (1-port) converter detected
[    7.756855] u*** 1-1.7: GSM modem (1-port) converter now attached to ttyUSB2
[    7.757686] option 1-1.7:1.3: GSM modem (1-port) converter detected
[    7.758823] u*** 1-1.7: GSM modem (1-port) converter now attached to ttyUSB3
[    7.761038] qmi_wwan_q 1-1.7:1.4: cdc-wdm0: USB WDM device
[    7.761079] qmi_wwan_q 1-1.7:1.4: Quectel EC25&EC21&EG91&EG95&EG06&EP06&EM06&EG12&EP12&EM12&EG16&EG18&BG96&AG35 work on RawIP mode
[    7.761710] qmi_wwan_q 1-1.7:1.4: rx_urb_size = 1520
[    7.762558] qmi_wwan_q 1-1.7:1.4 wwan0: register 'qmi_wwan_q' at u***-fd800000.u***-1.7, WWAN/QMI device, da:6a:4f:b4:a4:63
//DTS配置
kernelarcharm64bootdtsrockchiprk3568-evb1-ddr4-v10.dtsi
+    rk_modem: rk-modem {
+        ;
+        4G,power-gpio = <&gpio4 RK_PD2 GPIO_ACTIVE_LOW>; //4G/5G_EN-MODEM_ON-GPIO4_D2
+        4G,reset-gpio = <&gpio0 RK_PD5 GPIO_ACTIVE_HIGH>;//4G/5G_RST-MODEM_RST-GPIO0_D5
+        status = "okay";
+    };
  

  

//用的驱动是kerneldriversnetltelte_rm310.c；
kernelarcharm64configsrockchip_defconfig;   
CONFIG_LTE=y
CONFIG_LTE_RM310=y   

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调试部分：
1.使用lsu***

console:/ # su
console:/ #
console:/ # lsu***
Bus 005 Device 001: ID 1d6b:0002
Bus 001 Device 004: ID 2c7c:0125
Bus 003 Device 001: ID 1d6b:0001
Bus 002 Device 002: ID 0bda:c820
Bus 001 Device 001: ID 1d6b:0002
Bus 006 Device 001: ID 1d6b:0003
Bus 001 Device 002: ID 1a40:0201
Bus 004 Device 001: ID 1d6b:0001
Bus 002 Device 001: ID 1d6b:0002
Bus 001 Device 003: ID 25a7:fa61
其中，ID 2c7c:0125就是我们的无线网卡EC20,如果没有，请检查硬件威廉希尔官方网站 。

2.使用 ls -l dev/ttyUSB*   查看是否有节点和是否有权限（没有节点查驱动添加）

2|console:/ # ls -l dev/ttyUSB*                                                
crw-rw-rw- 1 radio radio 188,   0 2022-01-25 15:43 dev/ttyUSB0
crw-rw-rw- 1 radio radio 188,   1 2022-01-25 15:43 dev/ttyUSB1
crw-rw-rw- 1 radio radio 188,   2 2022-01-25 17:26 dev/ttyUSB2
crw-rw-rw- 1 radio radio 188,   3 2022-01-25 15:43 dev/ttyUSB3
3.使用ls -l dev/cdc-wdm0  检查节点是否注册（查系统有无添加这一段节点代码）

130|console:/ # ls -l dev/cdc-wdm0                                             
crw-rw---- 1 radio radio 180, 176 2022-01-25 15:43 dev/cdc-wdm0
4.getprop | grep ril 查看加载库是否正确

130|console:/ # getprop | grep ril
    [gsm.version.ril-impl]: [Quectel_Android_RIL_Driver_V3.3.62_dirty]
    [init.svc.vendor.ril-daemon]: [running]
    [init.svc_debug_pid.vendor.ril-daemon]: [391]
    [ril.function.dataonly]: [1]
    [ro.boot.noril]: [false]
    [ro.boottime.vendor.ril-daemon]: [7157814141]
    [ro.ril.ecclist]: [112,911]
    [vendor.rild.libpath]: [/vendor/lib64/librk-ril.so]

130|console:/ # getprop | grep rild                                            
[vendor.rild.libpath]: [/vendor/lib64/librk-ril.so]
5.logcat -b radio 打印log信息

130|console:/ # logcat -b radio                                                
--------- beginning of radio
01-25 15:43:17.805   248   248 D TelephonyManager: No /proc/cmdline exception=java.io.FileNotFoundException: /proc/cmdline: open failed: EACCES (Permission denied)
01-25 15:43:17.805   248   248 D TelephonyManager: /proc/cmdline=
01-25 15:43:22.633   249   249 D TelephonyManager: No /proc/cmdline exception=java.io.FileNotFoundException: /proc/cmdline: open failed: EACCES (Permission denied)
01-25 15:43:22.633   249   249 D TelephonyManager: /proc/cmdline=
01-25 15:43:24.111   447   447 D TelephonyRegistry: listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:24.232   447   528 D TelephonyRegistry: listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:24.321   447   461 D TelephonyRegistry: listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:24.543   447   447 D TelephonyRegistry: systemRunning register for intents
01-25 15:43:24.828   447   472 D TelephonyRegistry: listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:25.768   828   828 I chatty  : uid=1001(radio) com.android.phone expire 110 lines
01-25 15:43:25.829   391   391 I chatty  : uid=1001(radio) /vendor/bin/hw/rild expire 6 lines
01-25 15:43:25.832   828  1002 I chatty  : uid=1001(radio) HwBinder:828_1 expire 16 lines
01-25 15:43:25.890   447   447 D TelephonyRegistry: notifyCellLocationForSubscriber: subId=0 cellLocation=null
01-25 15:43:25.895   828   851 I chatty  : uid=1001(radio) Binder:828_3 expire 1 line
01-25 15:43:25.973   828  1021 I chatty  : uid=1001(radio) GsmInboundSmsHa expire 5 lines
01-25 15:43:25.985   828  1023 I chatty  : uid=1001(radio) CdmaInboundSmsH expire 5 lines
01-25 15:43:26.023   447   504 D TelephonyRegistry: listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.044   447   504 D TelephonyRegistry: listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.049   596   596 W CarrierConfigManager: Error getting config for subId 1 ICarrierConfigLoader is null
01-25 15:43:26.074   447   772 D TelephonyRegistry: listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.082   447   825 D TelephonyRegistry: listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.143   828  1030 I chatty  : uid=1001(radio) DcHandlerThread expire 1 line
01-25 15:43:26.202   447   825 D TelephonyRegistry: listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.217   447   825 D TelephonyRegistry: listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.243   447   504 D TelephonyRegistry: listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.260   447   504 D TelephonyRegistry: listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.429   828   828 I chatty  : uid=1001(radio) com.android.phone expire 129 lines
01-25 15:43:26.434   828  1002 I chatty  : uid=1001(radio) HwBinder:828_1 expire 25 lines
01-25 15:43:26.449   447   772 D TelephonyRegistry: notifySubscriptionInfoChanged: first invocation mRecords.size=22
01-25 15:43:26.509   391   391 I chatty  : uid=1001(radio) /vendor/bin/hw/rild expire 3 lines
01-25 15:43:26.653   828   828 I chatty  : uid=1001(radio) com.android.phone expire 135 lines
01-25 15:43:26.715   828  1002 I chatty  : uid=1001(radio) HwBinder:828_1 expire 4 lines
01-25 15:43:26.830   447   461 D TelephonyRegistry: notifyServiceStateForSubscriber: INVALID phoneId=0 or subId=-1
01-25 15:43:26.848   447   461 E PHONE   : ServiceState.getRadioTechnology() DEPRECATED will be removed *******
01-25 15:43:26.891   828   828 D PhoneSwitcher: Added DcRequest, size: 4
01-25 15:43:26.893   828   828 D DcRequest: Cellular request confirmed: NetworkRequest [ TRACK_DEFAULT id=13, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED Uid: 10114 AdministratorUids: [] RequestorUid: 10114 RequestorPackageName: com.android.systemui] ]
01-25 15:43:26.893   828   828 D PhoneSwitcher: evaluating due to netRequest
01-25 15:43:26.894   828   828 D PhoneSwitcher: notifyPreferredDataSubIdChanged to -1
01-25 15:43:26.895   828   828 D PhoneSwitcher: Added DcRequest, size: 5
01-25 15:43:26.896   828   828 D DcRequest: Cellular request confirmed: NetworkRequest [ BACKGROUND_REQUEST id=2, [ Transports: CELLULAR Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN AdministratorUids: [] RequestorUid: 1000 RequestorPackageName: android] ]
01-25 15:43:26.897   828   828 D PhoneSwitcher: evaluating due to netRequest
01-25 15:43:26.897   828   828 D PhoneSwitcher: notifyPreferredDataSubIdChanged to -1
01-25 15:43:26.898   828   828 D PhoneSwitcher: Added DcRequest, size: 6
01-25 15:43:26.900   828   828 D DcRequest: Cellular request confirmed: NetworkRequest [ TRACK_DEFAULT id=8, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED Uid: 1000 AdministratorUids: [] RequestorUid: 1000 RequestorPackageName: android] ]
01-25 15:43:26.900   828   828 D PhoneSwitcher: evaluating due to netRequest
01-25 15:43:26.901   828   828 D PhoneSwitcher: notifyPreferredDataSubIdChanged to -1
6.logcat -b radio -v time 打印log信息

127|console:/ # logcat -b radio -v time           
--------- beginning of radio
01-25 15:43:17.805 D/TelephonyManager(  248): No /proc/cmdline exception=java.io.FileNotFoundException: /proc/cmdline: open failed: EACCES (Permission denied)
01-25 15:43:17.805 D/TelephonyManager(  248): /proc/cmdline=
01-25 15:43:22.633 D/TelephonyManager(  249): No /proc/cmdline exception=java.io.FileNotFoundException: /proc/cmdline: open failed: EACCES (Permission denied)
01-25 15:43:22.633 D/TelephonyManager(  249): /proc/cmdline=
01-25 15:43:24.111 D/TelephonyRegistry(  447): listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:24.232 D/TelephonyRegistry(  447): listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:24.321 D/TelephonyRegistry(  447): listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:24.543 D/TelephonyRegistry(  447): systemRunning register for intents
01-25 15:43:24.828 D/TelephonyRegistry(  447): listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:25.768 I/chatty  (  828): uid=1001(radio) com.android.phone expire 110 lines
01-25 15:43:25.829 I/chatty  (  391): uid=1001(radio) /vendor/bin/hw/rild expire 6 lines
01-25 15:43:25.832 I/chatty  (  828): uid=1001(radio) HwBinder:828_1 expire 16 lines
01-25 15:43:25.890 D/TelephonyRegistry(  447): notifyCellLocationForSubscriber: subId=0 cellLocation=null
01-25 15:43:25.895 I/chatty  (  828): uid=1001(radio) Binder:828_3 expire 1 line
01-25 15:43:25.973 I/chatty  (  828): uid=1001(radio) GsmInboundSmsHa expire 5 lines
01-25 15:43:25.985 I/chatty  (  828): uid=1001(radio) CdmaInboundSmsH expire 5 lines
01-25 15:43:26.023 D/TelephonyRegistry(  447): listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.044 D/TelephonyRegistry(  447): listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.049 W/CarrierConfigManager(  596): Error getting config for subId 1 ICarrierConfigLoader is null
01-25 15:43:26.074 D/TelephonyRegistry(  447): listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.082 D/TelephonyRegistry(  447): listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.143 I/chatty  (  828): uid=1001(radio) DcHandlerThread expire 1 line
01-25 15:43:26.202 D/TelephonyRegistry(  447): listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.217 D/TelephonyRegistry(  447): listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.243 D/TelephonyRegistry(  447): listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.260 D/TelephonyRegistry(  447): listen oscl: mHasNotifySubscriptionInfoChangedOccurred==false no callback
01-25 15:43:26.429 I/chatty  (  828): uid=1001(radio) com.android.phone expire 129 lines
01-25 15:43:26.434 I/chatty  (  828): uid=1001(radio) HwBinder:828_1 expire 25 lines
01-25 15:43:26.449 D/TelephonyRegistry(  447): notifySubscriptionInfoChanged: first invocation mRecords.size=22
01-25 15:43:26.509 I/chatty  (  391): uid=1001(radio) /vendor/bin/hw/rild expire 3 lines
01-25 15:43:26.653 I/chatty  (  828): uid=1001(radio) com.android.phone expire 135 lines
01-25 15:43:26.715 I/chatty  (  828): uid=1001(radio) HwBinder:828_1 expire 4 lines
01-25 15:43:26.830 D/TelephonyRegistry(  447): notifyServiceStateForSubscriber: INVALID phoneId=0 or subId=-1
01-25 15:43:26.848 E/PHONE   (  447): ServiceState.getRadioTechnology() DEPRECATED will be removed *******
01-25 15:43:26.891 D/PhoneSwitcher(  828): Added DcRequest, size: 4
01-25 15:43:26.893 D/DcRequest(  828): Cellular request confirmed: NetworkRequest [ TRACK_DEFAULT id=13, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED Uid: 10114 AdministratorUids: [] RequestorUid: 10114 RequestorPackageName: com.android.systemui] ]
01-25 15:43:26.893 D/PhoneSwitcher(  828): evaluating due to netRequest
01-25 15:43:26.894 D/PhoneSwitcher(  828): notifyPreferredDataSubIdChanged to -1
01-25 15:43:26.895 D/PhoneSwitcher(  828): Added DcRequest, size: 5
7.添加quectel_debug_log

C:UsersXXX>adb root
restarting adbd as root

C:UsersXXX>adb shell mkdir /data/quectel_debug_log

C:UsersXXX>adb shell chmod 777 /data/quectel_debug_log

C:UsersXXX>adb reboot

C:UsersXXX>adb root
restarting adbd as root

C:UsersXXX>adb remount
remount succeeded

C:UsersXXX>adb pull /data/quectel_debug_log  C:UsersXXXDesktop
pull: building file list...
pull: /data/quectel_debug_log/0125_141525_radio.txt -> C:UsersXXXDesktop/0125_141525_radio.txt
pull: /data/quectel_debug_log/0125_141525_logcat.txt -> C:UsersXXXDesktop/0125_141525_logcat.txt
2 files pulled. 0 files skipped.
7929 KB/s (1497541 bytes in 0.184s)


桌面上找到就是打印LOG了

8.ifconfig 查看网口IP

130|console:/ # ifconfig
eth1      Link encap:Ethernet  HWaddr 82:4e:8f:f2:e9:d9  Driver rk_gmac-dwmac
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0
          Interrupt:42

eth0      Link encap:Ethernet  HWaddr 86:4e:8f:f2:e9:d9  Driver rk_gmac-dwmac
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0
          Interrupt:37

wwan0     Link encap:Ethernet  HWaddr 06:c5:32:08:f9:76  Driver qmi_wwan_q
          inet addr:10.216.51.125  Bcast:10.216.51.127  Mask:255.255.255.252
          inet6 addr: fe80::4c5:32ff:fe08:f976/64 Scope: Link
          UP BROADCAST RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope: Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:36 errors:0 dropped:0 overruns:0 frame:0
          TX packets:36 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1800 TX bytes:1800

dummy0    Link encap:Ethernet  HWaddr 66:f0:fc:7f:c6:61
          inet6 addr: fe80::64f0:fcff:fe7f:c661/64 Scope: Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:770

console:/ # ifconfig -a                                                        
ip_vti0   Link encap:UNSPEC  
          NOARP  MTU:1480  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0

eth1      Link encap:Ethernet  HWaddr 82:4e:8f:f2:e9:d9  Driver rk_gmac-dwmac
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0
          Interrupt:42

ip6_vti0  Link encap:UNSPEC  
          NOARP  MTU:1364  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0

p2p0      Link encap:Ethernet  HWaddr 32:7b:c9:24:a1:7e  Driver rtl8821cu
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0

eth0      Link encap:Ethernet  HWaddr 86:4e:8f:f2:e9:d9  Driver rk_gmac-dwmac
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0
          Interrupt:37

wwan0     Link encap:Ethernet  HWaddr 06:c5:32:08:f9:76  Driver qmi_wwan_q
          inet addr:10.216.51.125  Bcast:10.216.51.127  Mask:255.255.255.252
          inet6 addr: fe80::4c5:32ff:fe08:f976/64 Scope: Link
          UP BROADCAST RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0

wlan0     Link encap:Ethernet  HWaddr 30:7b:c9:24:a1:7e  Driver rtl8821cu
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0

ip6tnl0   Link encap:UNSPEC  
          NOARP  MTU:1452  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0

sit0      Link encap:IPv6-in-IPv4  
          NOARP  MTU:1480  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope: Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:36 errors:0 dropped:0 overruns:0 frame:0
          TX packets:36 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1800 TX bytes:1800

dummy0    Link encap:Ethernet  HWaddr 66:f0:fc:7f:c6:61
          inet6 addr: fe80::64f0:fcff:fe7f:c661/64 Scope: Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:770

console:/ #  
9.adb push C:UsersXXXDesktoplibrk-ril.so /vendor/lib64/

C:UsersXXX>adb root
adb server is out of date.  killing...
* daemon started successfully *
restarting adbd as root

C:UsersXXX>adb remount
Using overlayfs for /system
Using overlayfs for /vendor
Using overlayfs for /odm
Using overlayfs for /product
Using overlayfs for /system_ext
Now reboot your device for settings to take effect
remount succeeded

C:UsersXXX>adb push C:UsersXXXDesktoplibrk-ril.so /vendor/lib64/
6499 KB/s (388568 bytes in 0.058s)

push 库进去测试

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然后看到图标就可以上网了，

一般分为驱动问题（查节点生成）

二般就是库（查看是否更新到，查看logcat和push，检查加载的路径的库是否是这个库）

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问题处理：没接4G模块直接打印到卡死

重复打印'android.hardware.radio@1.1::IRadio/slot1'

[   44.972959] init: Control message: Processed ctl.interface_start for 'android.hardware.radio@1.1::IRadio/slot1' from pid: 149 (/system/bin/hwservicemanager)
[   45.975241] init: Control message: Processed ctl.interface_start for 'android.hardware.radio@1.1::IRadio/slot1' from pid: 149 (/system/bin/hwservicemanager)
[   46.977512] init: Control message: Processed ctl.interface_start for 'android.hardware.radio@1.1::IRadio/slot1' from pid: 149 (/system/bin/hwservicemanager)

RK3568systemcoreinitinit.cpp      
    + if(strcmp(name.c_str(),"android.hardware.radio@1.1::IRadio/slot1") != 0) {
    LOG(INFO) << "Control message: Processed ctl." << message << " for '" << name
              << "' from pid: " << from_pid << " (" << process_cmdline << ")";
        +        }
RK3568systemlibhidltransportServiceManagement.cpp
                +        if(strcmp(descriptor.c_str(),"android.hardware.radio@1.1::IRadio") != 0) {
            
            ALOGI("getService: Trying again for %s/%s...",                              
                     descriptor.c_str(),instance.c_str());
                +                }

                +        if(strcmp(mInterfaceName.c_str(),"android.hardware.radio@1.1::IRadio") != 0) {
            LOG(WARNING) << "Waited one second for " << mInterfaceName << "/" <<                                 
                     mInstanceName;
                +        }
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