[LinuxPPS] Kernel 2.6.38 and hardpps
Hal V. Engel
hvengel at gmail.com
Mon Jul 4 01:54:44 CEST 2011
I noticed that the newer kernels have an option to build the PPS stuff with the
kernel consumer so I build my kernel with this enabled. But when I try to use
it I get the follwoing messages in my clockstats file:
55745 84786.641 127.127.30.0 ONCORE[0]: ONCORE DRIVER -- CONFIGURING
55745 84786.641 127.127.30.0 ONCORE[0]: state = ONCORE_NO_IDEA
55745 84786.641 127.127.30.0 ONCORE[0]: Input mode = 1
55745 84786.641 127.127.30.0 ONCORE[0]: Initializing timing to Assert.
55745 84786.641 127.127.30.0 ONCORE[0]: HARDPPS Set.
55745 84786.641 127.127.30.0 ONCORE[0]: time_pps_kcbind failed: Operation not
supported
55745 84786.641 127.127.30.0 ONCORE[0]: HARDPPS failed, abort...
Which is basically saying that hardpps is not supported. by the kernel. Do I
have to load a module to get this to work? If so what module would that be?
Looking in lib/modules/2.6.38/kernel/drivers/pps I see the following:
# ls /lib/modules/2.6.38/kernel/drivers/pps/*
/lib64/modules/2.6.38/kernel/drivers/pps/pps_core.ko
/lib/modules/2.6.38/kernel/drivers/pps/clients:
pps-ldisc.ko
So I don't see any module here that I don't already have loaded.
I am running NTP-4.2.6-p3.
Hal
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