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ntp: add deterministic support for KPPS interface

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ntp checks for presence of sys/timepps.h to determine whether the kernel
supports the RFC 2783 KPPS interface.  Under Linux the pps-tools package
installs this header.  Without this feature the ATOM clock driver does
not work, and other drivers like NMEA have reduced precision.  Remove
the feature non-determinism and increase ntpd capabilities by adding an
explicit dependency.

See: http://doc.ntp.org/4.2.6/kernpps.html

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
This commit is contained in:
Peter Bigot 2014-08-28 12:43:11 -05:00 committed by Martin Jansa
parent 3b6dd621da
commit aca94301c8
1 changed files with 2 additions and 0 deletions
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meta-networking/recipes-support/ntp/ntp.inc
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@ -8,6 +8,8 @@ SECTION = "console/network"
LICENSE = "NTP"
LIC_FILES_CHKSUM = "file://COPYRIGHT;md5=fea4b50c33b18c2194b4b1c9ca512670"
DEPENDS = "pps-tools"
INC_PR = "r6"
SRC_URI = "http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-${PV}.tar.gz \