The Linux Kernel
5.11.0-rc4
  • The Linux kernel user’s and administrator’s guide
    • Linux kernel release 5.x <http://kernel.org/>
    • The kernel’s command-line parameters
    • Linux allocated devices (4.x+ version)
    • Documentation for /proc/sys
    • Linux ABI description
    • Feature status on all architectures
    • Hardware vulnerabilities
    • Reporting issues
    • Reporting bugs (obsolete)
    • Security bugs
    • Bug hunting
    • Bisecting a bug
    • Tainted kernels
    • Ramoops oops/panic logger
    • Dynamic debug
    • Explaining the “No working init found.” boot hang message
    • Documentation for Kdump - The kexec-based Crash Dumping Solution
    • Performance monitor support
    • pstore block oops/panic logger
    • Rules on how to access information in sysfs
    • ACPI Support
    • ATA over Ethernet (AoE)
    • Auxiliary Display Support
    • A block layer cache (bcache)
    • The Android binderfs Filesystem
    • Kernel Support for miscellaneous Binary Formats (binfmt_misc)
    • The Linux RapidIO Subsystem
    • Boot Configuration
    • Linux Braille Console
    • btmrvl driver
    • Control Groups version 1
    • Control Group v2
    • CIFS
    • Clearing WARN_ONCE
    • CPU load
    • How CPU topology info is exported via sysfs
    • Dell Remote BIOS Update driver (dell_rbu)
    • Device Mapper
    • EDID
    • The EFI Boot Stub
    • ext4 General Information
    • NFS
    • gpio
      • GPIO Aggregator
      • GPIO Sysfs Interface for Userspace
      • GPIO Testing Driver
    • Notes on the change from 16-bit UIDs to 32-bit UIDs
    • Linux support for random number generator in i8xx chipsets
    • Using the initial RAM disk (initrd)
    • I/O statistics fields
    • Java(tm) Binary Kernel Support for Linux v1.03
    • IBM’s Journaled File System (JFS) for Linux
    • Reducing OS jitter due to per-cpu kthreads
    • Laptop Drivers
    • Parallel port LCD/Keypad Panel support
    • LDM - Logical Disk Manager (Dynamic Disks)
    • Softlockup detector and hardlockup detector (aka nmi_watchdog)
    • Linux Security Module Usage
    • RAID arrays
    • Media subsystem admin and user guide
    • Memory Management
    • Kernel module signing facility
    • Mono(tm) Binary Kernel Support for Linux
    • Namespaces
    • Numa policy hit/miss statistics
    • Parport
    • Perf events and tool security
    • Power Management
    • Linux Plug and Play Documentation
    • RapidIO Subsystem Guide
    • Reliability, Availability and Serviceability
    • Real Time Clock (RTC) Drivers for Linux
    • Linux Serial Console
    • Video Mode Selection Support 2.13
    • Syscall User Dispatch
    • Linux Magic System Request Key Hacks
    • USB4 and Thunderbolt
    • Using UFS
    • Unicode support
    • Software cursor for VGA
    • Video Output Switcher Control
    • The SGI XFS Filesystem
  • Kernel Build System
  • The Linux kernel firmware guide
  • Open Firmware and Device Tree
  • The Linux kernel user-space API guide
  • Working with the kernel development community
  • Development tools for the kernel
  • How to write kernel documentation
  • Kernel Hacking Guides
  • Linux Tracing Technologies
  • Kernel Maintainer Handbook
  • fault-injection
  • Kernel Livepatching
  • The Linux driver implementer’s API guide
  • Core API Documentation
  • locking
  • Accounting
  • Block
  • cdrom
  • Linux CPUFreq - CPU frequency and voltage scaling code in the Linux(TM) kernel
  • Integrated Drive Electronics (IDE)
  • Frame Buffer
  • fpga
  • Human Interface Devices (HID)
  • I2C/SMBus Subsystem
  • Industrial I/O
  • ISDN
  • InfiniBand
  • LEDs
  • NetLabel
  • Linux Networking Documentation
  • pcmcia
  • Power Management
  • TCM Virtual Device
  • timers
  • Serial Peripheral Interface (SPI)
  • 1-Wire Subsystem
  • Linux Watchdog Support
  • Linux Virtualization Support
  • The Linux Input Documentation
  • Linux Hardware Monitoring
  • Linux GPU Driver Developer’s Guide
  • Security Documentation
  • Linux Sound Subsystem Documentation
  • Linux Kernel Crypto API
  • Filesystems in the Linux kernel
  • Linux Memory Management Documentation
  • BPF Documentation
  • USB support
  • Linux PCI Bus Subsystem
  • Linux SCSI Subsystem
  • Assorted Miscellaneous Devices Documentation
  • Linux Scheduler
  • MHI
  • Assembler Annotations
  • ARM Architecture
  • ARM64 Architecture
  • IA-64 Architecture
  • m68k Architecture
  • MIPS-specific Documentation
  • Nios II Specific Documentation
  • OpenRISC Architecture
  • PA-RISC Architecture
  • powerpc
  • RISC-V architecture
  • s390 Architecture
  • SuperH Interfaces Guide
  • Sparc Architecture
  • x86-specific Documentation
  • Xtensa Architecture
  • ext4 Data Structures and Algorithms
  • Unsorted Documentation
  • Atomic Types
  • Atomic bitops
  • Memory Barriers
  • General notification mechanism
  • Translations
The Linux Kernel
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  • The Linux kernel user’s and administrator’s guide »
  • gpio
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gpio¶

  • GPIO Aggregator
  • GPIO Sysfs Interface for Userspace
  • GPIO Testing Driver
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