[LinuxPPS] after a reboot suddenly there's no more pps for serial?!

[Folkert van Heusden]

after a reboot suddenly there's no more pps for serial?!
same kernel

belle:/home/folkert# dmesg | grep -i PPS
Linux version 2.6.23pps-nodeb.pps-nodeb (root at belle) (gcc version 4.2.3 20071123 (prerelease) (Debian 4.2.2-4)) #1 SMP Sun Jan 13 20:25:06 CET 2008
LinuxPPS API ver. 1 registered
new PPS source parport0 at ID 0
parport_pc 00:07: PPS source #0 "/dev/lp0" added
parport_serial 0000:05:02.0: PPS support disabled because port "/dev/lp1" is in polling mode
belle:/home/folkert# lsmod | grep 8250
8250_pci               29312  1 parport_serial
8250_pnp               16256  0
8250                   53944  4 8250_pci,8250_pnp
serial_core            27904  1 8250
belle:/home/folkert# ls -lR /sys/class/pps
/sys/class/pps:
total 0
drwxr-xr-x 3 root root 0 2008-04-20 11:07 pps0

/sys/class/pps/pps0:
total 0
-r--r--r-- 1 root root 4096 2008-04-20 11:07 assert
-r--r--r-- 1 root root 4096 2008-04-20 11:07 dev
lrwxrwxrwx 1 root root    0 2008-04-20 11:07 device -> ../../../devices/pnp0/00:07
-r--r--r-- 1 root root 4096 2008-04-20 11:07 echo
-r--r--r-- 1 root root 4096 2008-04-20 11:07 mode
-r--r--r-- 1 root root 4096 2008-04-20 11:07 name
-r--r--r-- 1 root root 4096 2008-04-20 11:07 path
drwxr-xr-x 2 root root    0 2008-04-20 11:07 power
lrwxrwxrwx 1 root root    0 2008-04-20 11:07 subsystem -> ../../../class/pps
-rw-r--r-- 1 root root 4096 2008-04-20 11:07 uevent

/sys/class/pps/pps0/power:
total 0
-rw-r--r-- 1 root root 4096 2008-04-20 11:07 wakeup



Folkert van Heusden

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