GPIO Aggregator

modulename: gpio-aggregator.ko


Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>Virtual GPIO drivers
└─>GPIO Aggregator
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
Say yes here to enable the GPIO Aggregator, which provides a way to
aggregate existing GPIO lines into a new virtual GPIO chip.
This can serve the following purposes:
- Assign permissions for a collection of GPIO lines to a user,
- Export a collection of GPIO lines to a virtual machine,
- Provide a generic driver for a GPIO-operated device in an
industrial control context, to be operated from userspace using
the GPIO chardev interface.

source code: