get driver CP210x for IMX8MP Debian10 version

• ubuntu
• Debain
• Linux
• usb driver

• HS

  Haeseul Shin

  3/22/24, 2:50 AM

  Hello, I flashed a Debian Image to the SD Card.

  and I need CP210x driver for my sensor, but i can not find it.

  When I execute '$ lsusb', the output is "Cygnal Integrated Products, Inc. CP2102/CP2109 UART Bridge Controller [CP210x family]". Howerver, there is no 'ttyUSB*' for this sensor.

  This issue is not related to 'ttyUSB*' because I can find other sensors under 'ttyUSB*'.

  I think this is the problem that there is no cp210x driver. 

  Actually, when I run '$ls -al /lib/modules/"$(uname -r)"/kernel/drivers/usb/serial/cp210x.ko', then output is "ls: cannot access '/lib/modules/5.10.35-lts-5.10.y+gc990fdc2ac56/kernel/drivers/usb/serial/cp210x.ko': No such file or directory".

  How can i solve this problem?

  I tried to build cp210x for solving this problem. I downloaded "Linux 3.x.x/4.x.x/5.x.x VCP Driver" on https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads

  But when I run "$ make", And i got Error 'modpost: "__stack_chk_guard" [/home/imx8mp/Downloads/driver/cp210x.ko] undefined!'. I think this is about Kernel things..

  I do not have access to PCs that meet the recommended hardware requirements for the host. Therefore, I cannot choose other solutions like building Yocto or something similar. I can only use rufus.exe.

  Thank you for reading this.

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• KK

  Kothandaraman Kannadasan Staff member

  4/2/24, 1:00 AM

  Dear @Haeseul Shin,

  Root cause

  "__stack_chk_guard" refers to a symbol related to stack-checking functionalities in the kernel.

  
  [/home/imx8mp/Downloads/driver/cp210x.ko]: This specifies the path to the compiled kernel module file (cp210x.ko) causing the issue.

  
  undefined!: This indicates that the modpost tool cannot find the "__stack_chk_guard" symbol within the module file.
  
  

  Solution

  Double-check the documentation for the downloaded driver to see if it explicitly mentions compatibility with your kernel version (e.g., Linux 3.x.x, 4.x.x, or 5.x.x).

  Consider searching(alternative driver) for a cp210x driver compiled explicitly for your kernel version.

  If it is a kernel version compatibility issue, upgrade the kernel and try to install it again.

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