w1: introduce an ability to specify microseconds bus scanning intervals

[uclinux-h8/linux.git] / Documentation / ABI / stable / sysfs-bus-w1

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+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 for detailed information.
+Users:         any user space application which wants to know bus scanning
+               interval