sw799a那种板子的4G模块问题，插入sim卡后usb不断的断开和重连

有情怀的垃圾佬

我的一个sw799，核心板是横着的没有type c的那种。刷了80+高大上的版本op、插入sim卡之后4G模块的usb口不断的断开和重连，会不会是4G模块坏了？下面断开重连的日志不断的打印出来。在断开之前抓紧时间ping外部的IP是能通的。
[  178.191895] usb 2-1: USB disconnect, device number 10
[  183.297913] usb 2-1: new high-speed USB device number 11 using ehci-platform
[  183.459363] rndis_host 2-1:1.0 eth1: register 'rndis_host' at usb-fe3c0000.usb-1, RNDIS device, ac:00:00:82:8b:39

大佬来指点一下吧

有情怀的垃圾佬

目前考虑三个方向：1. 供电（需要修改dts）；2. rndis驱动；3. 4G模块（坏了）；

有情怀的垃圾佬

多贴一点日志：
[76241.097655] usb 2-1: USB disconnect, device number 2
[76241.098339] rndis_host 2-1:1.0 eth1: unregister 'rndis_host' usb-fe3c0000.usb-1, RNDIS device
[76241.117891] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[76241.118729] option 2-1:1.2: device disconnected
[76241.119547] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[76241.120782] option 2-1:1.3: device disconnected
[76241.121776] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[76241.122564] option 2-1:1.4: device disconnected
[76246.517504] usb 2-1: new high-speed USB device number 3 using ehci-platform
[76250.902484] usb 2-1: USB disconnect, device number 3
[76256.013360] usb 2-1: new high-speed USB device number 4 using ehci-platform
[76256.175764] rndis_host 2-1:1.0 eth1: register 'rndis_host' at usb-fe3c0000.usb-1, RNDIS device, ac:00:00:f4:cd:73
[76256.177748] option 2-1:1.2: GSM modem (1-port) converter detected
[76256.178523] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB0
[76256.179737] option 2-1:1.3: GSM modem (1-port) converter detected
[76256.180490] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB1
[76256.181907] option 2-1:1.4: GSM modem (1-port) converter detected
[76256.182679] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB2
[76285.161105] usb 2-1: USB disconnect, device number 4
[76285.161825] rndis_host 2-1:1.0 eth1: unregister 'rndis_host' usb-fe3c0000.usb-1, RNDIS device
[76285.181897] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[76285.182743] option 2-1:1.2: device disconnected
[76285.184095] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[76285.184929] option 2-1:1.3: device disconnected
[76285.185828] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[76285.186616] option 2-1:1.4: device disconnected
[76289.325799] usb 2-1: new high-speed USB device number 5 using ehci-platform
[76293.707412] usb 2-1: USB disconnect, device number 5
[76298.813801] usb 2-1: new high-speed USB device number 6 using ehci-platform
[76298.975800] rndis_host 2-1:1.0 eth1: register 'rndis_host' at usb-fe3c0000.usb-1, RNDIS device, ac:00:00:eb:99:f8
[76298.977811] option 2-1:1.2: GSM modem (1-port) converter detected
[76298.978601] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB0
[76298.979914] option 2-1:1.3: GSM modem (1-port) converter detected
[76298.980684] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB1
[76298.982196] option 2-1:1.4: GSM modem (1-port) converter detected
[76298.982977] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB2

ccee

ophub试过没

有情怀的垃圾佬

ccee 发表于 2023-8-31 21:11
ophub试过没

试过，最好的是高大全的那个，也是有同样的问题。我这个版本就是用高大全的dts，加上百度的修改识别出/dev/ttyUSB, 没能解决问题，下面是高大全的链接：
http://files.kos.org.cn/rockchip ... 5%A4%A7%E5%85%A8.7z

有情怀的垃圾佬

用串口工具试了下，根据官方的《CLM920_AC3 模块Linux 集成用户手册》，“AT+ RNDISCALL =1”这个指令返回error。有大佬了解吗？

有情怀的垃圾佬

解决了，喜大普奔。
借了别人的卡试了都正常上网，电信的移动的都ok。我的电信卡一连上网络、4G模块就重启。

evel

大佬，4g模块怎么用啊？我首页就没有显示，只有一个网卡，求教谢谢

Qwer

有情怀的垃圾佬 发表于 2023-9-1 09:32
试过，最好的是高大全的那个，也是有同样的问题。我这个版本就是用高大全的dts，加上百度的修改识别出/de ...

楼主问下你那边是怎么做到识别/dev/ttyUSB，也是用这个高大全版本，只有ttyS、tty，没有ttyUSB

是这个命令吗，用完好像是出来了/dev/ttyUSB0  /dev/ttyUSB1  /dev/ttyUSB2
modprobe option
echo 1286 4e3c > /sys/bus/usb-serial/drivers/option1/new_id



把命令分开好像可以了

有情怀的垃圾佬

Qwer 发表于 2023-11-5 08:20
楼主问下你那边是怎么做到识别/dev/ttyUSB，也是用这个高大全版本，只有ttyS、tty，没有ttyUSB

是这个命 ...

我是百度之后把1286 4e3c加到源码中，使用ndis驱动不需要加。