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-rw-r--r--drivers/pps/clients/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/pps/clients/Kconfig b/drivers/pps/clients/Kconfig
index 43ccd3b644f..4e801bd7254 100644
--- a/drivers/pps/clients/Kconfig
+++ b/drivers/pps/clients/Kconfig
@@ -15,4 +15,11 @@ config PPS_CLIENT_KTIMER
This driver can also be built as a module. If so, the module
will be called pps-ktimer.
+config PPS_CLIENT_LDISC
+ tristate "PPS line discipline"
+ depends on PPS
+ help
+ If you say yes here you get support for a PPS source connected
+ with the CD (Carrier Detect) pin of your serial port.
+
endif