aaabbb222 发布的帖子

就是网线不插入，也会亮着。

@cweib
同问，请问最后怎么解决了？ 我的是启动了ch310驱动后，网络就废了。

修改.config文件，内核中配置了ch341驱动，但是网卡找不到了，eth0找不到。但是uboot启动的时候可以看到网卡。
linu 内核为4.14， 开发板为nanopi neo h3 256M.

请教是不是什么地方冲突了？

出现错误提示：
[FAILED] Failed to start Raise network interfaces.
See 'systemctl status networking.service' for details.

执行命令systemctl status networking.service后的错误信息如下：
networking.service - Raise network interfaces
Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor pre
set: enabled)
Active: failed (Result: exit-code) since Wed 2023-11-22 05:10:27
CST; 3 months 25 days ago
Docs: man:interfaces(5)
Process: 92 ExecStart=/sbin/ifup -a --read-environment (code=exited,
status=1/FAILURE)
Main PID: 92 (code=exited, status=1/FAILURE)

提示找不到 eth0。

@nideyida 在 usb模块的问题 中说：

@aaabbb222 在 usb模块的问题 中说：

nanopi neo

nanopi neo 用的是哪颗芯片？

H3

硬件为：nanopi neo
内核模块为：Linux4.14
文件系统为 ubuntu21.0
在内核模块中打开了usb serial converter能力，并添加了pl2302的驱动，但是出现如下症状，而且在/dev目录下，没有ttyUSB文件。

在USB插口，插入usb转rs485的头子，出现如下错误：
[code]
sun4i-codec 1c22c00.codec: ASoC: /soc/codec-analog@01f015c0 not registered
[ 1.764752] sun4i-codec 1c22c00.codec: Failed to register our card

[/code]
请教如何解决？

@apollo5520 在 各位大佬，问一个问题，5G模组的设备节点是ttyUSB0、ttyUSB1、ttyUSB2、ttyUSB3，但是开发板上使用了一个FTDI232的USB转串口的方案，它的对应的设备节点是ttyUSB0，怎们能够避免这个问题 中说：

@cube_work 可以修改 usb转串口驱动，把FTDI232的串口号改成其他的

请问，有具体的做法吗?

请问，是需要配置dts文件吗？还是内核没有配置好？ 谢谢。

没啥兴趣，小客户得不到啥资料支持，费劲扒拉的，没劲。

一个月能挣多少钱？ 会不会35岁被裁员？

做硬件开发的老手，一个月可以拿多少钱？ 35岁后会不会被优化？

请问nanopi 的dev目录下，大量无用的终端文件，也不知道哪个能用，有什么办法把没有用的给清除掉吗？谢谢。

难道就没有关于Nano pi的相关文档资料了吗？

请问，nano neo的怎么修改呢？谢谢。

请问，nanopi neo的板子，如何修改串口设置？ 我在公司 提供的内核代码中没有找到board.dts文件，只有sun8i-h3-nanopi-neo.dtsi文件，但该文件内容非常少。

@lingeasy 你这个配置的目的是干啥用的呀？

nano-pi neo 用默认的内核，在写python代码的时候，无法发现可用的串口列表，请问，如何编译内核，或者修改内核，实现该功能？谢谢。

修改了include/configs/sun8i.h文件中的内容 ，具体如下： 提示的root后面的参数不对，是不是文件系统对应的名称不对，不是/dev/mmcblk0p2?
谢谢大侠。
#define CONFIG_BOOTCOMMAND "setenv bootm_boot_mode sec; "
"load mmc 0:1 0x41000000 zImage; "
"load mmc 0:1 0x41800000 sun8i-v3s-licheepi-zero-dock.dtb; "
"bootz 0x41000000 - 0x41800000;"

#define CONFIG_BOOTARGS "console=ttyS0,115200 panic=5 rootwait root=/dev/mmcblk0p2 earlyprintk rw vt.global_cursor_default=0"

 3.675032] sun6i-rtc 1f00000.rtc: setting system clock to 1970-01-01 00:00:10 UTC (10)
[    3.689357] vcc3v0: disabling
[    3.698156] vcc5v0: disabling
[    3.706831] usb0-vbus: disabling
[    3.715700] ALSA device list:
[    3.724235]   #0: Dummy 1
[    3.732362]   #1: Loopback 1
[    3.740717]   #2: H3 Audio Codec
[    3.749433]   #3: allwinner,hdmi
[    3.758774] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6
[    3.771879] Please append a correct "root=" boot option; here are the available partitions:
[    3.785900] b300        15558144 mmcblk1 
[    3.785905]  driver: mmcblk
[    3.803880]   b301           32768 mmcblk1p1 23a83b10-01
[    3.803883] 
[    3.821749]   b302         8347648 mmcblk1p2 23a83b10-02
[    3.821751] 
[    3.839477] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[    3.853331] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.111-gec36a7d5-dirty #2
[    3.866478] Hardware name: sun8i
[    3.875354] [<c02287fc>] (unwind_backtrace) from [<c0225398>] (show_stack+0x10/0x14)
[    3.888844] [<c0225398>] (show_stack) from [<c0a1ba3c>] (dump_stack+0x94/0xa8)
[    3.901829] [<c0a1ba3c>] (dump_stack) from [<c0240dd0>] (panic+0xdc/0x254)
[    3.914427] [<c0240dd0>] (panic) from [<c1001228>] (mount_block_root+0x18c/0x25c)
[    3.927671] [<c1001228>] (mount_block_root) from [<c1001414>] (mount_root+0x11c/0x124)
[    3.941372] [<c1001414>] (mount_root) from [<c1001574>] (prepare_namespace+0x158/0x19c)
[    3.955171] [<c1001574>] (prepare_namespace) from [<c1000ef8>] (kernel_init_freeable+0x254/0x264)
[    3.969889] [<c1000ef8>] (kernel_init_freeable) from [<c0a2ef4c>] (kernel_init+0x8/0x114)
[    3.983968] [<c0a2ef4c>] (kernel_init) from [<c0222058>] (ret_from_fork+0x14/0x3c)
[    3.997512] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[   61.924973] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 58s!
[   61.939007] BUG: workqueue lockup - pool cpus=0-3 flags=0x4 nice=0 stuck for 53s!
[   61.952577] Showing busy workqueues and worker pools:
[   61.963669] workqueue events: flags=0x0
[   61.973520]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=4/256
[   61.985570]     in-flight: 109:sun4i_usb_phy0_id_vbus_det_scan
[   61.997440]     pending: vmstat_shepherd, dbs_work_handler, output_poll_execute
[   62.010863] workqueue events_unbound: flags=0x2
[   62.021482]   pwq 8: cpus=0-3 flags=0x4 nice=0 active=1/512
[   62.033209]     pending: flush_to_ldisc
[   62.043164] workqueue events_freezable: flags=0x4
[   62.053982]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[   62.066135]     pending: thermal_zone_device_check
[   62.077051] workqueue events_power_efficient: flags=0x80
[   62.088487]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=5/256
[   62.100621]     pending: fb_flashcursor, crda_timeout_work, neigh_periodic_work, do_cache_clean, neigh_periodic_work
[   62.117467] workqueue mm_percpu_wq: flags=0x8
[   62.128095]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[   62.140422]     pending: vmstat_update
[   62.150518] workqueue pm: flags=0x4
[   62.160221]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[   62.172399]     pending: pm_runtime_work
[   62.182514] workqueue dm_bufio_cache: flags=0x8
[   62.193151]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[   62.205299]     pending: work_fn
[   62.214627] pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=58s workers=5 idle: 29 132 3 108