The Linux Kernel
4.13.0-rc4
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  • The Linux kernel user-space API guide
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  • The Linux driver implementer’s API guide
    • Driver Basics
    • Device drivers infrastructure
    • Device Power Management
    • Bus-Independent Device Accesses
    • Buffer Sharing and Synchronization
    • Device links
    • Message-based devices
    • Sound Devices
    • Frame Buffer Library
    • Voltage and current regulator API
    • Industrial I/O
    • Input Subsystem
    • Linux USB API
    • PCI Support Library
    • PCI Hotplug Support Library
    • Serial Peripheral Interface (SPI)
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    • High Speed Synchronous Serial Interface (HSI)
    • Error Detection And Correction (EDAC) Devices
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    • MTD NAND Driver Programming Interface
    • Parallel Port Devices
    • 16x50 UART Driver
    • Pulse-Width Modulation (PWM)
    • W1: Dallas’ 1-wire bus
    • RapidIO Subsystem Guide
    • Writing s390 channel device drivers
    • VME Device Drivers
    • Linux 802.11 Driver Developer’s Guide
    • The Userspace I/O HOWTO
    • Linux Firmware API
      • Introduction
      • Firmware API core features
      • request_firmware API
      • Other Firmware Interfaces
    • PINCTRL (PIN CONTROL) subsystem
    • Miscellaneous Devices
  • Core API Documentation
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The Linux Kernel
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  • The Linux driver implementer’s API guide »
  • Linux Firmware API
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Linux Firmware API¶

  • Introduction
    • Types of firmware requests
  • Firmware API core features
    • Firmware search paths
    • Built-in firmware
    • Firmware cache
    • Direct filesystem lookup
      • Firmware and initramfs
    • Fallback mechanisms
      • Justifying the firmware fallback mechanism
      • Types of fallback mechanisms
      • Firmware sysfs loading facility
      • Firmware kobject uevent fallback mechanism
      • Firmware custom fallback mechanism
      • Firmware fallback timeout
    • Firmware lookup order
  • request_firmware API
    • Synchronous firmware requests
      • request_firmware
      • request_firmware_direct
      • request_firmware_into_buf
    • Asynchronous firmware requests
      • request_firmware_nowait
    • Considerations for suspend and resume
      • fw_pm_notify
    • request firmware API expected driver use
  • Other Firmware Interfaces
    • DMI Interfaces
    • EDD Interfaces
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