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

[Rodolfo Giometti]

On Mon, Apr 21, 2008 at 08:15:58PM +0200, Folkert van Heusden wrote:

> > By loading the modules yourself you give the command "modprobe 8250",
> > is that right?
> 
> Correct.
> 
> > And after that you see that lp support is enabled,
> 
> Well, it seems that the lp support is always there, it is just that no
> support comes in for the serial device.
> 
> belle:/home/folkert# rmmod 8250_pci ; rmmod 8250 ; rmmod serial_core
> belle:/home/folkert# find /sys/ -iname \*pps\*
> /sys/class/pps
> /sys/class/pps/pps0
> /sys/devices/pnp0/00:07/pps:pps0
> belle:/home/folkert# cat /sys/class/pps/pps0/path
> /dev/lp0
> belle:/home/folkert# modprobe 8250
> belle:/home/folkert# find /sys/ -iname \*pps\*
> /sys/class/pps
> /sys/class/pps/pps0
> /sys/devices/pnp0/00:07/pps:pps0
> belle:/home/folkert# cat /sys/class/pps/pps0/path
> /dev/lp0

It seems that the PPS device related with the serial device is not
created? Did you enable the hardpps flag for the serial port?

Ciao,

Rodolfo

-- 

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