/sys/class/gpio/... (sysfs interface)
modulename: gpiolib-sysfs.ko
configname: CONFIG_GPIO_SYSFS
Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>/sys/class/gpio/... (sysfs interface)
In linux kernel since version 2.6.27 (release Date: 2008-10-09)
Say Y here to add the legacy sysfs interface for GPIOs.
This ABI is deprecated. If you want to use GPIO from userspace,
use the character device /dev/gpiochipN with the appropriate
ioctl() operations instead. The character device is always
available.
This ABI is deprecated. If you want to use GPIO from userspace,
use the character device /dev/gpiochipN with the appropriate
ioctl() operations instead. The character device is always
available.