gps модуль globalsat et-332 debian с ядром 2.6.35 с включенным pps ( конфиг )
после подключения gps и выполнения ldattach PPS /dev/ttyS0, в kern.log отлично видны сигналы pps
May 26 12:29:14 vm-deb kernel: PPS event on source 0 at 1338020954.34160264
May 26 12:29:14 vm-deb kernel: PPS clear at 529999 on source #0
May 26 12:29:15 vm-deb kernel: PPS event on source 0 at 1338020955.34300247
May 26 12:29:15 vm-deb kernel: PPS clear at 530999 on source #0
May 26 12:29:16 vm-deb kernel: PPS event on source 0 at 1338020956.34441906
May 26 12:29:16 vm-deb kernel: PPS clear at 531999 on source #0
May 26 12:29:17 vm-deb kernel: PPS event on source 0 at 1338020957.34666551
May 26 12:29:17 vm-deb kernel: PPS clear at 533000 on source #0
May 26 12:29:18 vm-deb kernel: PPS event on source 0 at 1338020958.34736123
May 26 12:29:18 vm-deb kernel: PPS clear at 534000 on source #0
May 26 12:29:19 vm-deb kernel: PPS event on source 0 at 1338020959.34863533
May 26 12:29:19 vm-deb kernel: PPS clear at 535000 on source #0
НО Ни тулза из комплекта pps-tools
-bash-4.1# ./ppstest /dev/pps0
trying PPS source "/dev/pps0"
found PPS source "/dev/pps0"
ok, found 1 source(s), now start fetching data...
time_pps_fetch() error -1 (Connection timed out)ни ntp собранный с --enable-ATOM - никаких сигналов не видят :(