To use the device without sudo privileges on Linux, you can create a udev rule. This allows regular users to access the USB device. Create a new file, e.g., /etc/udev/rules.d/50-canalyst.rules , with the following content (adjust the idVendor and idProduct if necessary; common values are 04d8 and 0053 based on the device’s USB identification):
Even with the new release, problems can arise. Here are solutions to the top five user-reported issues:
If you are using Linux, check that the device is recognized, as seen in this Ubuntu 22.04 query .
Some older revisions of Chuangxin Tech hardware controllers struggle with the power management states of USB 3.0/3.1 ports. chuangxin tech usbcan driver new
Restart Windows in Disable Driver Signature Enforcement mode. Alternatively, check the manufacturer's repository for the newer, WHQL-certified version of the driver package. 2. "ControlCAN.dll Not Found" Error
support@chuangxintech.com (ask for "new USBCAN driver for your specific model").
Anyone else tested the new driver on Windows 11 ARM64 or with CAN‑FD adapters? Post your results below. To use the device without sudo privileges on
: For non-Windows environments, unofficial userspace drivers like python-canalystii provide support for Linux and macOS. Installation Guide
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The new pychuangxin wheel (installed via pip install chuangxin-usbcan ) works with Python 3.12 and asyncio: Here are solutions to the top five user-reported
pip install "python-can[canalystii]"
| Legacy Function | New Function (v4) | Description | | :--- | :--- | :--- | | VCI_OpenDevice | CXT_OpenCanChannel | Supports multiple channels per device | | VCI_Receive | CXT_ReadCanFdFrame | Now handles Classic and FD frames | | VCI_Transmit | CXT_WriteCanFrame | Non-blocking mode improved | | N/A | CXT_SetHardwareTimestamp | New microsecond timestamp sync |
Chuangxin Tech USBCAN drivers support multiple adapter installations on a single computer. If you need to use multiple USBCAN adapters simultaneously, the driver architecture accommodates this through proper device enumeration and channel management.