In Device Manager, right-click the device and select Properties > Details > Hardware Ids . Verify Vendor: Look for VEN_1C00 (WinChipHead / WCH).
Connecting old impact printers, label printers, or plotters to modern computers for cost-sensitive environments like warehouses or workshops. ch351q parallel port driver
Delivers a solid 5V output, making it a preferred choice for Mach 3 CNC controllers and engraving machines. Driver Compatibility and Download In Device Manager, right-click the device and select
For persistent configuration, add options parport_pc io=0x378 irq=none to /etc/modprobe.d/parport.conf . Delivers a solid 5V output, making it a
The CH351Q is a parallel port driver chip developed by WCH (WinChipHead), a Chinese company. The CH351Q is designed to provide a high-speed parallel port interface for PCs, compatible with the traditional parallel port standard.
The "interesting" part of the CH351Q write-up is the cat-and-mouse game between the silicon manufacturer and OS updates:
The CH351Q, sitting on the PCI bus, does not natively live at 0x378 . The PCI bus assigns it a dynamic memory address (BAR, or Base Address Register) during boot.