CP2102 driver

If you are looking at using the CP2102 driver which is for the UART driver then you can find more of that here. This is how to install the CP2102 driver in a Linux system as well as on a Windows system. The driver on listed in the link page and you can download the files there in both the Windows as well as the Linux format.

CP2102 driver

To install the driver in Linux you will need  to download it and then install it as follows:

  1. Don’t login as Root when installing the driver;
  2. Proceed to unzip the file in your  home directory (cp210x-3.1.0)
  3. Note that usb-serial.h is hard coded in the file ./cp210x/cp210x.h
  4. Note also that KERNELDIR is hard coded in the file ./cp210x/rules.mak
  5. run ./makerpm
  6. The package is now located at cd /var/temp/silabs/rpmbuild/RPMS/i386
  7. You will need to double click on the file now called cp210x-3.1.0.i386.rpm
  8. Follow the instructions as it installs.

See more details on the page here for the driver. The Windows install is pretty straight forward. This is a Windows 10 driver CP2102 driver(x64, x86) and will work on the following devices – CP2102N, CP2102, CP2103, CP2104, CP2105, CP2108, CP2109. This driver will only work on Windows 10. See also the csr bluetooth driver Windows 7 on here.

If you are wanting to use an older version then you will need to use the legacy VCP driver which is lower than this being Version 10. The VCP driver is – (CP210xVCPInstaller_x64.exe which is a 64-bit installer) as well as (CP210xVCPInstaller_x86.exe which is a 32-bit installer).

See also  USB Serial RS232 Troubleshooting


Install CP2102 driver on Linux

To install the CP2102 driver on Linux, follow these steps:

  1. Download Driver Files:
    • Visit the provided link and download the CP2102 driver files.
  2. Unzip and Untar Files:
    • Unzip and untar the downloaded files to access the driver source.
  3. Compile the Driver:
    • Navigate to the driver directory and run make to compile the driver.
  4. Copy Driver File:
    • Copy the compiled driver file, cp210x.ko, to /lib/modules/<kernel-version>/kernel/drivers/usb/serial.
  5. Load the Driver:
    • Load the driver by executing insmod /lib/modules/<kernel-version>/kernel/drivers/usb/serial/usbserial.ko and insmod cp210x.ko as the root user.
  6. Connect CP2102 Device:
    • Plug in the CP2102 device to a USB port and check the device name in /dev/ttyUSB*.
  7. Kernel Version:
    • Find your actual kernel version by running uname -r in the terminal. Replace <kernel-version> with this information.

Install CP2102 driver on LinuxAdditionally, it’s essential to note:

  • The CP210x driver has been included in the Linux kernel since version 2.6.122. In most modern Linux distributions, no extra steps are needed to use CP210x devices.
  • To check if the driver is already installed, run dpkg -L linux-modules-extra-<kernel-version> | grep cp210x. This command helps verify the presence of the CP210x driver.

By following these steps, you should be able to install and use the CP2102 driver on your Linux system. If you encounter any issues or have questions, feel free to ask for assistance.


How do I check my kernel version?

kernel versionYou can check your kernel version by opening a terminal and typing the following command:

uname -r

This command will display the version of the kernel that your system is currently using. The output will look something like this:


In this example, 5.4.0-26-generic is the kernel version. Your actual output may vary depending on your specific Linux distribution and the updates you’ve installed. See also the CP2104 and CP2102 difference.

See also  CP2109 USB to UART


How to install the CP2102 driver on Windows?

Here are the steps to install the CP2102 driver on Windows:

  1. Open Device Manager:
    • Right-click on the Windows logo and select “Device Manager.”
  2. Locate CP2102 Device:
    • In the Device Manager, find the CP2102 USB to UART Bridge Controller under the category “Other Devices.” It might appear with a yellow triangle indicating a driver issue.
  3. Update Driver:
    • Right-click on the CP2102 device and choose “Update Driver.”
  4. Follow Instructions:
    • Choose the option to update the driver automatically. Follow the on-screen instructions to complete the installation process.
  5. Download Driver (if needed):
    • If you don’t have the driver or if the automatic update fails, download the CP2102 driver from the official webpage of the CP2102 chip.
  6. Run Installer:
    • Run the downloaded installer and proceed with the installation. Click “Install” or “Continue Anyway” if prompted.
  7. Restart Your System:
    • After the installation is complete, it’s advisable to restart your system to ensure that the changes take effect.

If you encounter any issues during or after the installation, you may want to check the official support resources for the CP2102 chip or refer to the documentation that comes with the driver for troubleshooting guidance. Lastly also see the CP210x USB to UART bridge VCP drivers as well as the Installing the CP2102 Driver and CP2102 driver install.