How to Avoid Writing Device Drivers for Embedded Linux

How to Avoid Writing Device Drivers for Embedded Linux

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Intro

1 of 24

1 of 24

Intro

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How to Avoid Writing Device Drivers for Embedded Linux

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  1. 1 Intro
  2. 2 About Chris Simmonds
  3. 3 Conventional device driver model
  4. 4 How applications interact device drivers
  5. 5 A note about device trees
  6. 6 GPIO: General Purpose Input/Output
  7. 7 Two userspace drivers!
  8. 8 The gpiolib systs interface
  9. 9 Inside a gplochip
  10. 10 Exporting a GPIO pin
  11. 11 Inputs and outputs
  12. 12 Interrupts
  13. 13 The gpio-cdev interface
  14. 14 gpio-cdev example 22
  15. 15 PWM: Pulse-Width Modulation
  16. 16 The PWM systs interface
  17. 17 Exporting a PWM
  18. 18 PWM example
  19. 19 12C: the Inter IC bus
  20. 20 The 12c-dev driver
  21. 21 Detecting 12c slaves using cdetect
  22. 22 12C code example - light sensor, addr 0x39
  23. 23 Other examples
  24. 24 What are you missing?

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