## PTP clock support configuration#menu "PTP clock support"comment "Enable Device Drivers -> PPS to see the PTP clock options." depends on PPS=nconfig PTP_1588_CLOCK tristate "PTP clock support" depends on EXPERIMENTAL depends on PPS help The IEEE 1588 standard defines a method to precisely synchronize distributed clocks over Ethernet networks. The standard defines a Precision Time Protocol (PTP), which can be used to achieve synchronization within a few dozen microseconds. In addition, with the help of special hardware time stamping units, it can be possible to achieve synchronization to within a few hundred nanoseconds. This driver adds support for PTP clocks as character devices. If you want to use a PTP clock, then you should also enable at least one clock driver as well. To compile this driver as a module, choose M here: the module will be called ptp.endmenu
