Linux supports the 16C95X architecture natively out-of-the-box. The hardware is handled by the standard 8250/16550 serial driver subsystem ( 8250_pci module).
What is the of your serial card/adapter?
In modern Linux kernels (Kernel 2.6+), support for the 16C95X chipset is compiled directly into the kernel via the standard 8250/16550 serial driver subsystem ( drivers/tty/serial/8250/ ). 16c95x serial port driver
If your legacy industrial software only recognizes COM1 through COM4 , you can use the dropdown menu here to reassign a high COM port number (e.g., COM12 ) to a lower, vacant slot. 5. Linux Support: The 8250 Core Driver
Completely uninstall the device from Device Manager, check "Delete the driver software for this device," restart, and install a certified 64-bit driver supplied by the card manufacturer (e.g., StarTech, Moxa, or ASIX/Oxford). 2. Data Corruption / Buffer Overruns In modern Linux kernels (Kernel 2
Legacy software often requires the serial port to be mapped strictly between COM1 and COM4 . If the driver automatically maps the 16C95X device to a high number like COM12 , the application may fail to find it.
For most modern Linux distributions (e.g., Ubuntu, Fedora), the 16C95x driver is part of the kernel and is automatically loaded when the hardware is detected. To check if your card is recognized, use the following commands: Linux Support: The 8250 Core Driver Completely uninstall
Standard UARTs top out at 115.2 Kbps. The 16C95X driver configures a TCR (Times Clock Register) and a 16-bit divisor latch to split down external crystal frequencies, allowing custom baud rates up to 15 or 16 Mbps for high-speed industrial sensors and networking nodes. 3. How to Download and Install the 16C95X Driver
By default, a 16C95X chip can run in "backward compatibility mode" to mimic an old 16C550 chip. The dedicated 16C95X driver unlocks the "Enhanced Mode," activates the full 128-byte FIFO buffer, and enables ultra-high baud rates.
Managing Interrupt Request (IRQ) lines and Direct Memory Access (DMA) channels.
uart1: serial@20080000 compatible = "nxp,16c950"; reg = <0x20080000 0x1000>; interrupts = <8>; clock-frequency = <1843200>; current-speed = <115200>; auto-flow-control; ;