HamsterBear F1C200s v5.17 Linux RTL8188EUS 适配

平台 - F1C200s
Linux版本 - 5.17.2
Buildroot - v2022.2

底板做了USB HUB，用的是FE1.1s，一共做了4路，其中一路拿来连wifi模块，另外

3个直接做成了USB Type-A接口

进入 kernel menuconfig 打开如下选项

（该驱动位于staging下，选择编译进内核）

buildroot中选择如下软件包

（主要是net-tools iw工具包）

启动系统后

1. 修改musb 为host模式

echo host > /sys/devices/platform/soc/1c13000.usb/musb-hdrc.1.auto/mode

[ 1379.560411] phy phy-1c13400.phy.0: Changing dr_mode to 1

[ 1380.223933] usb 1-1: new high-speed USB device number 2 using musb-hdrc

[ 1380.405841] hub 1-1:1.0: USB hub found

[ 1380.409764] hub 1-1:1.0: 4 ports detected

[ 1380.833942] usb 1-1.1: new high-speed USB device number 3 using musb-hdrc

[ 1381.146412] r8188eu: module is from the staging directory, the quality is unknown, you have been warned.

[ 1381.170314] Chip Version Info: CHIP_8188E_Normal_Chip_TSMC_D_CUT_1T1R_RomVer(0)

[ 1381.205020] EEPROM ID = 0x8129

[ 1381.212399] usbcore: registered new interface driver r8188eu

ip addr 可以看到对应wifi接口

# ip addr

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1000

    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

    inet 127.0.0.1/8 scope host lo

       valid_lft forever preferred_lft forever

2: usb0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000

    link/ether 52:8c:6f:55:1f:64 brd ff:ff:ff:ff:ff:ff

3: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000

    link/ether 54:ef:33:d6:5e:72 brd ff:ff:ff:ff:ff:ff

2. 连接到wifi

上电

# ifconfig wlan0 up

[ 1687.899356] R8188EU: Firmware Version 11, SubVersion 1, Signature 0x88e1

[ 1688.274263] MAC Address = 54:ef:33:d6:5e:72

扫描附近wifi

# iwlist wlan0 scan

wlan0     Scan completed :

          Cell 01 - Address: 8C:DE:F9:EC:55:8B

                    ESSID:""

                    Protocol:IEEE 802.11bgn

                    Mode:Master

                    Frequency:2.422 GHz (Channel 3)

                    Encryption key:off

                    Bit Rates:144 Mb/s

                    Quality:0  Signal level:0  Noise level:0

          Cell 02 - Address: 96:DE:F9:EC:55:8B

                    ESSID:"kernelbot"

                    Protocol:IEEE 802.11bgn

                    Mode:Master

                    Frequency:2.422 GHz (Channel 3)

                    Encryption key:off

                    Bit Rates:144 Mb/s

                    IE: Unknown: DD820050F204104A0001101044000101103B00010310470010876543219ABCDEF012340AA3C33C838F102100067869616F6D69102300045241383110240004303030321042000531323334351054000800060050F2040001101100135849414F4D495F524F555445525F4755455354100800020000103C0001031049000600372A000120

                    Quality:0  Signal level:0  Noise level:0

连接到wifi

# iwconfig wlan0 essid kernelbot

# iwconfig

lo        no wireless extensions.

usb0      no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"kernelbot"  Nickname:"<WIFI@REALTEK>"

          Mode:Managed  Frequency:2.422 GHz  Access Point: 96:DE:F9:EC:55:8B

          Bit Rate:72.2 Mb/s   Sensitivity:0/0

          Retry:off   RTS thr:off   Fragment thr:off

          Encryption key:off

          Power Management:off

          Link Quality=100/100  Signal level=0 dBm  Noise level=0 dBm

          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0

          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

请求ip

# udhcpc -i wlan0

udhcpc: started, v1.35.0

udhcpc: broadcasting discover

udhcpc: broadcasting select for 192.168.19.234, server 192.168.19.1

udhcpc: lease of 192.168.19.234 obtained from 192.168.19.1, lease time 43200

deleting routers

adding dns 192.168.19.1

尝试访问外网(没接天线)

# ping baidu.com

PING baidu.com (220.181.38.148): 56 data bytes

64 bytes from 220.181.38.148: seq=0 ttl=50 time=201.784 ms

64 bytes from 220.181.38.148: seq=1 ttl=50 time=225.148 ms

64 bytes from 220.181.38.148: seq=2 ttl=50 time=15.126 ms

64 bytes from 220.181.38.148: seq=3 ttl=50 time=116.496 ms

64 bytes from 220.181.38.148: seq=4 ttl=50 time=115.356 ms

64 bytes from 220.181.38.148: seq=5 ttl=50 time=21.000 ms

64 bytes from 220.181.38.148: seq=6 ttl=50 time=114.353 ms

64 bytes from 220.181.38.148: seq=7 ttl=50 time=122.406 ms

^C

--- baidu.com ping statistics ---

8 packets transmitted, 8 packets received, 0% packet loss

round-trip min/avg/max = 15.126/116.458/225.148 ms

总结以及遇到的一些问题

总结

因为一开始设计思路就比较清晰，所以整个过程还是比较顺利的，底板设计的时候，因为

粗心大意连错了线，所以又再版了。

内核 buildroot那两块等有空再写详细点。

有问题可以联系我邮箱(writeforever@foxmail.com)

问题

模块上电后扫描自动断开连接

后来发现是供电不够，一开始一直用电脑USB接口供电，但那个最大电流貌似就500mA，

换了个充电头就ok了。

巴特西

HamsterBear F1C200s v5.17 Linux RTL8188EUS 适配

HamsterBear F1C200s v5.17 Linux RTL8188EUS 适配

进入 kernel menuconfig 打开如下选项

buildroot中选择如下软件包

启动系统后

1. 修改musb 为host模式

2. 连接到wifi

上电

扫描附近wifi

连接到wifi

请求ip

尝试访问外网(没接天线)

更多玩法

1. MQTT与上位机通信

2. 移植浏览器访问网页

3. 挂载主机NFS文件系统

4. 做内网WEB服务器

5. 暂时没想到

总结以及遇到的一些问题

总结

问题

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