torvalds/linux

What:        /sys/bus/w1/devices/.../w1_master_timeout_us
Date:        April 2015
Contact:    Dmitry Khromov <dk@icelogic.net>
Description:    Bus scanning interval, microseconds component.
        Some of 1-Wire devices commonly associated with physical access
        control systems are attached/generate presence for as short as
        100 ms - hence the tens-to-hundreds milliseconds scan intervals
        are required.

        see Documentation/w1/w1-generic.rst for detailed information.
Users:        any user space application which wants to know bus scanning
        interval