IRQ is 0, meaning interrupts are not working. Fix:
To pass the CH351Q parallel port to a VM: ch351q parallel port driver
If you purchased a PCIe parallel card with a CH351Q, it includes a mini-CD. Use it only if you trust the vendor; scan it first with antivirus software. IRQ is 0, meaning interrupts are not working
Windows 11/10/8.1/8/7 (both 32 and 64-bit), legacy versions like XP/2000, and Windows Server 2022-2003. Linux/macOS: IRQ is 0
Installing the is generally straightforward, but it requires attention to detail regarding the source of the software.