16c95x Serial Port Driver

Developing a stable 16C95x driver presents specific challenges compared to standard UARTs:

Generating high baud rates (up to 60 Mbaud) is a complex task. Unlike the 16550's fixed division ratios, the 16C95x introduces additional registers for fine-grained control: 16c95x serial port driver

The 128-byte FIFOs are the cornerstone of the 16C95x's performance. They drastically reduce the number of interrupts sent to the CPU, especially at high baud rates. Instead of being interrupted for every byte, the CPU is only notified when the FIFO reaches a certain threshold, greatly improving system efficiency for high-throughput serial applications. Instead of being interrupted for every byte, the

In the Linux kernel, the 8250 serial driver ( drivers/tty/serial/8250/8250_port.c ) provides the PORT_16C950 type. This unified driver supports a wide range of 8250-compatible UARTs, and its implementation includes crucial extensions for the 16C95x's advanced features. Locate the unrecognized hardware under Other Devices (often

Locate the unrecognized hardware under Other Devices (often listed as "PCI Serial Port"). Right-click and select .

What (and version) are you currently targeting?

Installing a 16C95x-based serial port card is generally straightforward, but attention to detail is crucial.