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jed_t

Member

Registered: 2026-10-20

Posts: 4

CH340C microcontroller not detected

Sorry to revive the thread, mine is ESP32-DOWDQ6-V3 and it has a CH340C chip. when I `dmesg -wH` is not detecting the device. when I run `modinfo ch341` it shows ch341. I think this driver is not working for this device. Is there a way to prove my hypothesis?

dimich

Member

From: Kharkiv, Ukraine

Registered: 2009-11-03

Posts: 826

Re: CH340C microcontroller not detected

when I `dmesg -wH` is not detecting the device.

Please show full dmesg output after plugging the device.

when I run `modinfo ch341` it shows ch341.

`modinfo` shows information about a module regardless of any device presence.

I think this driver is not working for this device. Is there a way to prove my hypothesis?

Kernel should™ detect any working USB device regardless of driver.
Show output of

$ lsusb -tv

when device is plugged.

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 15,512

Re: CH340C microcontroller not detected

Moderator Note
split off from https://bbs.archlinux.org/viewtopic.php?id=285662

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Try clean chroot manager by graysky

jed_t

Member

Registered: 2026-10-20

Posts: 4

Re: CH340C microcontroller not detected

thanks @dimich, I think it's defective because after using another os and pc it is still not detected.

nomorewindows

Member

Registered: 2010-04-03

Posts: 3,544

Re: CH340C microcontroller not detected

I think you need to get a driver for ch341 from the AUR.

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I may have to CONSOLE you about your usage of ridiculously easy graphical interfaces...
Look ma, no mouse.