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DMUART - DMOD UART Driver Module

Overview

DMUART is a DMOD module providing a hardware-abstracted UART (Universal Asynchronous Receiver-Transmitter) driver interface. It follows the DMOD driver interface (DMDRVI) pattern for consistent device access across different hardware platforms.

Architecture

┌──────────────────────────────────────┐
│           Application                │
├──────────────────────────────────────┤
│         DMDRVI Interface             │
│   (open/close/read/write/ioctl)      │
├──────────────────────────────────────┤
│          DMUART Core                 │
│   (configuration, state management)  │
├──────────────────────────────────────┤
│        DMUART Port Layer             │
│   (hardware-specific implementation) │
├──────────────────────────────────────┤
│          Hardware (UART)             │
└──────────────────────────────────────┘

Features

  • Standard DMDRVI device interface (read/write/ioctl)
  • Configurable baud rate, data bits, parity, stop bits, and flow control
  • Multiple UART instance support
  • Platform-independent core with hardware-specific port layer
  • INI-based configuration via DMINI

Device Path

UART devices are registered as /dev/dmuart<N> where N is the minor number (instance).

Dependencies

  • dmdrvi - DMOD Driver Interface
  • dmini - INI configuration parser