SNLA450 July   2024 DP83822H , DP83822HF , DP83822I , DP83822IF , DP83826E , DP83826I , DP83848-EP , DP83848Q-Q1 , DP83867CR , DP83867CS , DP83867E , DP83867IR , DP83867IS , DP83TC812R-Q1 , DP83TC812S-Q1 , DP83TC813R-Q1 , DP83TC813S-Q1 , DP83TC814R-Q1 , DP83TC814S-Q1 , DP83TG720R-Q1 , DP83TG720S-Q1 , DP83TG721R-Q1 , DP83TG721S-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Texas Instruments Ethernet PHY Drivers
  5. 2Ethernet PHY Driver Overview
    1. 2.1 Exploring Linux Driver Types
      1. 2.1.1 U-Boot Driver
      2. 2.1.2 Kernel Driver
  6. 3Driver Integration
    1. 3.1 Linux Device Tree
    2. 3.2 Integrating Driver
  7. 4Common Terminal Commands
    1. 4.1 Initialization Commands
      1. 4.1.1 dmesg | grep -i mdio
      2. 4.1.2 ifconfig
    2. 4.2 Functional Commands
      1. 4.2.1 Phytool
      2. 4.2.2 Ethtool
      3. 4.2.3 Forced Master/Slave
    3. 4.3 Diagnostic Commands
      1. 4.3.1 SQI
      2. 4.3.2 TDR
      3. 4.3.3 Throughput Testing - Ping and iPerf
  8. 5Summary
  9. 6References

2.1.2 Kernel Driver

A kernel driver, also known simply as driver, is a software component that enables the operating system kernel to communicate with and control hardware devices. These drivers are integrated into the kernel and are responsible for managing the interactions between software applications and hardware peripherals such as network adapters, storage drives, input or output devices, and more. Kernel drivers handle tasks such as device initialization, data transfer, interrupt handling, power management, and error handling.