X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fpps%2FKconfig;fp=kernel%2Fdrivers%2Fpps%2FKconfig;h=7512e98e9311055b431ce5eca775a9de508a31be;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git diff --git a/kernel/drivers/pps/Kconfig b/kernel/drivers/pps/Kconfig new file mode 100644 index 000000000..7512e98e9 --- /dev/null +++ b/kernel/drivers/pps/Kconfig @@ -0,0 +1,47 @@ +# +# PPS support configuration +# + +menu "PPS support" + +config PPS + tristate "PPS support" + ---help--- + PPS (Pulse Per Second) is a special pulse provided by some GPS + antennae. Userland can use it to get a high-precision time + reference. + + Some antennae's PPS signals are connected with the CD (Carrier + Detect) pin of the serial line they use to communicate with the + host. In this case use the SERIAL_LINE client support. + + Some antennae's PPS signals are connected with some special host + inputs so you have to enable the corresponding client support. + + To compile this driver as a module, choose M here: the module + will be called pps_core.ko. +if PPS + +config PPS_DEBUG + bool "PPS debugging messages" + help + Say Y here if you want the PPS support to produce a bunch of debug + messages to the system log. Select this if you are having a + problem with PPS support and want to see more of what is going on. + +config NTP_PPS + bool "PPS kernel consumer support" + depends on !NO_HZ + help + This option adds support for direct in-kernel time + synchronization using an external PPS signal. + + It doesn't work on tickless systems at the moment. + +endif + +source drivers/pps/clients/Kconfig + +source drivers/pps/generators/Kconfig + +endmenu