Pci 60806a Driver – Limited

Some Chinese or Taiwanese manufacturers (e.g., Zotek, YUAN, or Advantech-clones) use internal model numbers like “PCI-60806A” for relay, counter, or analog I/O cards. In such cases:

Most modern Linux kernels (3.x to 6.x) auto-detect the MCS9865 chip. Verify with: pci 60806a driver

sudo dmesg | grep -i serial
lspci | grep -i serial

If not auto-loading, install the driver manually: Some Chinese or Taiwanese manufacturers (e

sudo modprobe serial_base
sudo apt-get install moschip-mcs9865-dkms   # For Debian/Ubuntu

Or compile from source (if required):

git clone https://github.com/torvalds/linux/tree/master/drivers/tty/serial/mpsc.c
# Note – compiled only needed for very old kernels

The PCI 60806A is a generic PCI-to-Serial/Parallel card, usually employing WCH CH35X or CH38X series chips, that often appears as an "Unknown Device" in Windows. Drivers can be installed by downloading the CH35X series driver from the WCH manufacturer website, or by manually installing via Device Manager using identified Hardware IDs. Most modern Linux kernels (3

For direct access to the required WCH drivers, visit the WCH official website.