The CH382L is a USB-to-parallel (IEEE1284) bridge controller by WCH (Nanjing Qinheng Microelectronics) used in adapters and cables to connect parallel printers/peripherals to USB.
If you are using Linux (e.g., for a server or older hardware interface), you do not need to download a driver file. The kernel includes support. wch ch382l parallel port driver download
GitHub (verified mirrors)
Your card manufacturer’s site (e.g., Startech, Delock, Sunix) – they repackage WCH drivers with custom installers. The CH382L is a USB-to-parallel (IEEE1284) bridge controller
Cause: The CH382 uses memory-mapped I/O, not legacy I/O ports. The parport_pc driver doesn't understand it. GitHub (verified mirrors)
Solution: Use the dedicated ch382 kernel module, not parport_pc. Blacklist parport_pc if necessary.
A: No. The Linux kernel contains the parport_pc driver which automatically detects many PCIe parallel port chips, including the WCH CH382 series. However, you may need to manually load the module:
sudo modprobe parport_pc
dmesg | grep parport