2 # PPS support configuration
9 depends on EXPERIMENTAL
11 PPS (Pulse Per Second) is a special pulse provided by some GPS
12 antennae. Userland can use it to get a high-precision time
15 Some antennae's PPS signals are connected with the CD (Carrier
16 Detect) pin of the serial line they use to communicate with the
17 host. In this case use the SERIAL_LINE client support.
19 Some antennae's PPS signals are connected with some special host
20 inputs so you have to enable the corresponding client support.
22 To compile this driver as a module, choose M here: the module
23 will be called pps_core.ko.
26 bool "PPS debugging messages"
29 Say Y here if you want the PPS support to produce a bunch of debug
30 messages to the system log. Select this if you are having a
31 problem with PPS support and want to see more of what is going on.
33 source drivers/pps/clients/Kconfig