[LinuxPPS] 2.6.31 up and running, now what?

Hal V. Engel hvengel at astound.net
Wed Sep 16 19:14:37 CEST 2009


On Wednesday 16 September 2009 09:43:28 am time berta.com wrote:
> Hello gang,
> 
> been mostly monitoring the situation on the LinuxPPS front lately, but
>  since we now have part of the code in the officially released 2.6.31
>  kernel, I thought I would spend some time and try to see what's new.
> 
> For starters, the fact that the git repository does not work is not
> helping... I was
> then forced to use the latest patch in order to generate the userland
> tools source
> files, as the Documentation/pps directory in the released kernel feels
> quite empty...
> 
> While I have no problem to load the pps_core module, with dmesg showing
>  that the loading went well, I don't seem to be able to progress at all
>  beyond this point.
> 
> ppsldisc barfs on me saying "ioctl(TIOCSETD): Invalid argument" and
>  ldattach, recompiled from the util-linux-ng-2.16.1 package, also barfs on
>  me with a "ldattach: cannot set line discipline: Invalid argument"
> 
> I had  to fiddle somehow with the links to the include files, but they
> seem to be
> allright now, and compiling gives no errors.
> 
> I understand that Rodolfo is busy, but I was wondering if anybody has given
>  the new kernel a try, and if so, with what results.  Seems to me like we
>  made a step forward and two back... :-(
> 
> Ciao, Luca

My understanding is that some LinuxPPS code is in the new kernel but that it 
is missing the code in the serial driver.  Because of this it still needs to 
be patched but no one has created a patch to make it work yet.

Hal



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