20240919在友善之臂的NanoPC-T6开发板上使用Rockchip原厂的Buildroot时打开CONFIG_USB_NET_RNDIS_HOST宏
2024/9/19 18:20

缘起，大毛PK二毛战况激烈，穿越机大卖！我司拆同行的图传作品。
发现：
主控：飞凌OK3588-C核心板
图传模块：宸芯的数传模块CX6602N

于是费了老鼻子劲，联系上了宸芯。
技术支持需要派工单，经过多方协调，终于和上海的软件FAE对接上了。

宸芯的数传模块CX6602N支持三频段：800M、1.4GHZ、2.4GHZ。
支持USB接口（PIN69的DP和PIN70的DM）和HSIC接口（PIN2的HSIS_DATA，PIN4的HSIC_STROBE）

USB接口可以直接以虚拟以太网卡的形式接友善之臂的NanoPC-T6开发板。
HSIC接口接LAN9730转【百兆】以太网RJ45之后，接下位机！

2. 上位机配置
2.1 添加 rndis 和 gserial 主机驱动
进入 kernel 目录 make menuconfig，1．添加配置 CONFIG_USB_NET_RNDIS_HOST=m：

很容易发现：Z:\repo_RK3588_Buildroot20240508\kernel\.config
找不到CONFIG_USB_NET_RNDIS_HOST宏。

viewpro@viewpro-ThinkBook-16-G5-IRH:~/repo_RK3588_Buildroot20240508/kernel$ 
viewpro@viewpro-ThinkBook-16-G5-IRH:~/repo_RK3588_Buildroot20240508/kernel$ ll .config
-rwx------ 1 viewpro viewpro 198027 9月  11 19:54 .config*
viewpro@viewpro-ThinkBook-16-G5-IRH:~/repo_RK3588_Buildroot20240508/kernel$ 
viewpro@viewpro-ThinkBook-16-G5-IRH:~/repo_RK3588_Buildroot20240508/kernel$ make ARHC=arm64 menuconfig

【第一级，使用向下的箭头拉到下一页/最后】
[ ] Hidden networking configuration needed for GKI
[ ] Hidden PHY configuration needed for GKI       
[ ] Hidden MM configuration needed for GKI        
[ ] Hidden DMA configuration needed for GKI       
[ ] Hidden Ethernet configuration needed for GKI  
[ ] GKI Dummy config options                      
    Executable file formats  --->                 
    Memory Management options  --->               
[*] Networking support  --->                      
    Device Drivers  --->                          
    File systems  --->                            
    Security options  --->                        
-*- Cryptographic API  --->                       
    Library routines  --->                        
    Kernel hacking  --->                          

【第二级】
[ ] EISA support (NEW)  ----                                       
[*] PCI support  --->                                              
< > PCCard (PCMCIA/CardBus) support  ----                          
< > RapidIO support  ----                                          
    Generic Driver Options  --->                                   
    Bus devices  --->                                              
<*> Connector - unified userspace <-> kernelspace linker  --->     
< > GNSS receiver support  ----                                    
<*> Memory Technology Device (MTD) support  --->                   
[*] Device Tree and Open Firmware support  --->                    
< > Parallel port support  ----                                    
[*] Block devices  --->                                            
    NVME Support  --->                                             
    Misc devices  --->                                             
< > ATA/ATAPI/MFM/RLL support (DEPRECATED) (NEW)  ----             
    SCSI device support  --->                                      
<*> Serial ATA and Parallel ATA drivers (libata)  --->             
[*] Multiple devices driver support (RAID and LVM)  --->           
< > Generic Target Core Mod (TCM) and ConfigFS Infrastructure  ----
[ ] Fusion MPT device support  ----                                
    IEEE 1394 (FireWire) support  --->                             
[ ] Macintosh device drivers (NEW)  ----                           
[*] Network device support  --->                                   
    Input device support  --->                                     
    Character devices  --->                                        
    I2C support  --->                                              
< > I3C support  ----                                              
[*] SPI support  --->                                              
< > SPMI support  ----                                             
< > HSI support  ----                                              
-*- PPS support  --->                                              

【第三级】
--- Network device support                                            
[*]   Network core driver support                                     
< >     Bonding driver support                                        
< >     Dummy net driver support                                      
< >     WireGuard secure network tunnel                               
< >     EQL (serial line load balancing) support                      
[ ]     Fibre Channel driver support                                  
< >     Ethernet team driver support  ----                            
< >     MAC-VLAN support                                              
< >     IP-VLAN support                                               
< >     Virtual eXtensible Local Area Network (VXLAN)                 
< >     Generic Network Virtualization Encapsulation                  
< >     Bare UDP Encapsulation                                        
< >     GPRS Tunneling Protocol datapath (GTP-U)                      
< >     IEEE 802.1AE MAC-level encryption (MACsec)                    
< >     Network console logging support                               
< >     Universal TUN/TAP device driver support                       
[ ]     Support for cross-endian vnet headers on little-endian kernels
<*>     Virtual ethernet pair device                                  
<*>     Virtio network driver                                         
<*>     Virtual netlink monitoring device                             
< >   ARCnet support  ----                                            
      Distributed Switch Architecture drivers  ----                   
[*]   Ethernet driver support  --->                                   
< >   FDDI driver support                                             
[ ]   HIPPI driver support                                            
-*-   PHY Device support and infrastructure  --->                     
< >   Micrel KS8995MA 5-ports 10/100 managed Ethernet switch          
-*-   MDIO bus device drivers  --->                                   
      PCS device drivers  --->                                        
< >   PPP (point-to-point protocol) support                           

【拉到最后】
< >     IP-VLAN support                                                
< >     Virtual eXtensible Local Area Network (VXLAN)                  
< >     Generic Network Virtualization Encapsulation                   
< >     Bare UDP Encapsulation                                         
< >     GPRS Tunneling Protocol datapath (GTP-U)                       
< >     IEEE 802.1AE MAC-level encryption (MACsec)                     
< >     Network console logging support                                
< >     Universal TUN/TAP device driver support                        
[ ]     Support for cross-endian vnet headers on little-endian kernels 
<*>     Virtual ethernet pair device                                   
<*>     Virtio network driver                                          
<*>     Virtual netlink monitoring device                              
< >   ARCnet support  ----                                             
      Distributed Switch Architecture drivers  ----                    
[*]   Ethernet driver support  --->                                    
< >   FDDI driver support                                              
[ ]   HIPPI driver support                                             
-*-   PHY Device support and infrastructure  --->                      
< >   Micrel KS8995MA 5-ports 10/100 managed Ethernet switch           
-*-   MDIO bus device drivers  --->                                    
      PCS device drivers  --->                                         
< >   PPP (point-to-point protocol) support                            
< >   SLIP (serial line) support                                       
<*>   USB Network Adapters  --->                                       
[*]   Wireless LAN  --->                                               
      *** Enable WiMAX (Networking options) to see the WiMAX drivers **
[ ]   Wan interfaces support  ----                                     
< >   VMware VMXNET3 ethernet driver                                   
< >   Simulated networking device                                      
-*-   Failover driver                                                  
[ ]   ISDN support  ----                                               

【第4级】
--- USB Network Adapters                                  
< >   USB CATC NetMate-based Ethernet device support      
< >   USB KLSI KL5USB101-based ethernet device support    
< >   USB Pegasus/Pegasus-II based ethernet device support
<*>   USB RTL8150 based ethernet device support           
<*>   Realtek RTL8152/RTL8153 Based USB Ethernet Adapters 
< >   Microchip LAN78XX Based USB Ethernet Adapters       
< >   Multi-purpose USB Networking Framework              
< >   Option USB High Speed Mobile Devices                
< >   Apple iPhone USB Ethernet driver                    

--- USB Network Adapters                                              
< >   USB CATC NetMate-based Ethernet device support                  
< >   USB KLSI KL5USB101-based ethernet device support                
< >   USB Pegasus/Pegasus-II based ethernet device support            
<*>   USB RTL8150 based ethernet device support                       
<*>   Realtek RTL8152/RTL8153 Based USB Ethernet Adapters             
< >   Microchip LAN78XX Based USB Ethernet Adapters                   
<*>   Multi-purpose USB Networking Framework                          
<*>     ASIX AX88xxx Based USB 2.0 Ethernet Adapters (NEW)            
<*>     ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet (NEW)       
-*-     CDC Ethernet support (smart devices such as cable modems)     
< >     CDC EEM support (NEW)                                         
<*>     CDC NCM support (NEW)                                         
< >     Huawei NCM embedded AT channel support (NEW)                  
< >     CDC MBIM support (NEW)                                        
< >     Davicom DM96xx based USB 10/100 ethernet devices (NEW)        
< >     CoreChip-sz SR9700 based USB 1.1 10/100 ethernet devices (NEW)
< >     CoreChip-sz SR9800 based USB 2.0 10/100 ethernet devices (NEW)
< >     SMSC LAN75XX based USB 2.0 gigabit ethernet devices (NEW)     
< >     SMSC LAN95XX based USB 2.0 10/100 ethernet devices (NEW)      
< >     GeneSys GL620USB-A based cables (NEW)                         
<*>     NetChip 1080 based cables (Laplink, ...) (NEW)                
< >     Prolific PL-2301/2302/25A1/27A1 based cables (NEW)            
< >     MosChip MCS7830 based Ethernet adapters (NEW)                 
<*>     Host for RNDIS and ActiveSync devices                         
<*>   Simple USB Network Links (CDC Ethernet subset) (NEW)            
[ ]     ALi M5632 based 'USB 2.0 Data Link' cables (NEW)              
[ ]     AnchorChips 2720 based cables (Xircom PGUNET, ...) (NEW)      
[*]     eTEK based host-to-host cables (Advance, Belkin, ...) (NEW)   
[*]     Embedded ARM Linux links (iPaq, ...) (NEW)                    
[ ]     Epson 2888 based firmware (DEVELOPMENT) (NEW)                 

经过比对，很容易知道需要打开上一级的USB接口的以太网的宏。
Z:\repo_RK3588_Buildroot20240508\kernel\.config
CONFIG_USB_RTL8150=y
CONFIG_USB_RTL8152=y
# CONFIG_USB_LAN78XX is not set
CONFIG_USB_USBNET=y
CONFIG_USB_NET_AX8817X=y
CONFIG_USB_NET_AX88179_178A=y
CONFIG_USB_NET_CDCETHER=y
# CONFIG_USB_NET_CDC_EEM is not set
CONFIG_USB_NET_CDC_NCM=y
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
# CONFIG_USB_NET_DM9601 is not set
# CONFIG_USB_NET_SR9700 is not set
# CONFIG_USB_NET_SR9800 is not set
# CONFIG_USB_NET_SMSC75XX is not set
# CONFIG_USB_NET_SMSC95XX is not set
# CONFIG_USB_NET_GL620A is not set
CONFIG_USB_NET_NET1080=y
# CONFIG_USB_NET_PLUSB is not set
# CONFIG_USB_NET_MCS7830 is not set
CONFIG_USB_NET_RNDIS_HOST=y
CONFIG_USB_NET_CDC_SUBSET_ENABLE=y
CONFIG_USB_NET_CDC_SUBSET=y
# CONFIG_USB_ALI_M5632 is not set
# CONFIG_USB_AN2720 is not set
CONFIG_USB_BELKIN=y
CONFIG_USB_ARMLINUX=y
# CONFIG_USB_EPSON2888 is not set
# CONFIG_USB_KC2190 is not set
CONFIG_USB_NET_ZAURUS=y
# CONFIG_USB_NET_CX82310_ETH is not set
# CONFIG_USB_NET_KALMIA is not set
# CONFIG_USB_NET_QMI_WWAN is not set
# CONFIG_USB_HSO is not set
# CONFIG_USB_NET_INT51X1 is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_USB_SIERRA_NET is not set
# CONFIG_USB_VL600 is not set
# CONFIG_USB_NET_CH9200 is not set
# CONFIG_USB_NET_AQC111 is not set
CONFIG_WLAN=y
# CONFIG_WIRELESS_WDS is not set
CONFIG_WLAN_VENDOR_ADMTEK=y
# CONFIG_ADM8211 is not set

Z:\repo_RK3588_Buildroot20240508\kernel\arch\arm64\configs\rockchip_linux_defconfig

CONFIG_RK630_PHY=y
CONFIG_USB_RTL8150=y
CONFIG_USB_RTL8152=y
CONFIG_USB_USBNET=y
CONFIG_USB_NET_RNDIS_HOST=y
CONFIG_WL_ROCKCHIP=y
CONFIG_WIFI_BUILD_MODULE=y
CONFIG_AP6XXX=m

搜索：/rndis

viewpro@viewpro-ThinkBook-16-G5-IRH:~/repo_RK3588_Buildroot20240508/kernel$ 
viewpro@viewpro-ThinkBook-16-G5-IRH:~/repo_RK3588_Buildroot20240508/kernel$ ll .config
-rwx------ 1 viewpro viewpro 198027 9月  11 19:54 .config*
viewpro@viewpro-ThinkBook-16-G5-IRH:~/repo_RK3588_Buildroot20240508/kernel$ 
viewpro@viewpro-ThinkBook-16-G5-IRH:~/repo_RK3588_Buildroot20240508/kernel$ make ARHC=arm64 menuconfig
  UPD     scripts/kconfig/mconf-cfg
  HOSTCC  scripts/kconfig/mconf.o
  HOSTCC  scripts/kconfig/lxdialog/checklist.o
  HOSTCC  scripts/kconfig/lxdialog/inputbox.o
  HOSTCC  scripts/kconfig/lxdialog/menubox.o
  HOSTCC  scripts/kconfig/lxdialog/textbox.o
  HOSTCC  scripts/kconfig/lxdialog/util.o
  HOSTCC  scripts/kconfig/lxdialog/yesno.o
  HOSTLD  scripts/kconfig/mconf
configuration written to .config

*** End of the configuration.
*** Execute 'make' to start the build or try 'make help'.

viewpro@viewpro-ThinkBook-16-G5-IRH:~/repo_RK3588_Buildroot20240508/kernel$ 
viewpro@viewpro-ThinkBook-16-G5-IRH:~/repo_RK3588_Buildroot20240508/kernel$ make ARHC=arm64 menuconfig

*** End of the configuration.
*** Execute 'make' to start the build or try 'make help'.

viewpro@viewpro-ThinkBook-16-G5-IRH:~/repo_RK3588_Buildroot20240508/kernel$