Re: [RFC] PPS: Implementing LinuxPPS API with new syscalls

[Rodolfo Giometti <giometti@enneenne.com>]

On Wed, Jun 06, 2007 at 11:24:16PM +0200, Rodolfo Giometti wrote:
> On Wed, Jun 06, 2007 at 01:29:34PM -0700, Andrew Morton wrote:
> 
> > >    asmlinkage long sys_time_pps_find(int cmd, int __user *source,
> > >                                           char __user *name, int namelen,
> > >                                           char __user *path, int pathlen);
> 
> Try to find a PPS source into the system giving one of its feature.
> 
> With cmd==PPS_FIND_SRC we check for a PPS source with index number
> equal to *source, if *source==-1 we just ask for the first PPS source
> defined into the system.
> 
> With cmd=PPS_FIND_PATH we check for a PPS source with path name equal
> to path.
> 
> Selected source is returned into *source and PPS source info are
> placed into path and name arrays.

Maybe this syscall can be turned into something like:

   asmlinkage long sys_time_pps_ioctl(int cmd, void *ptr);

and data are passed through ptr pointer... obviously first implemented
commands will be PPS_FIND_SRC and PPS_FIND_PATH.

This allows future improvements...

Ciao,

Rodolfo

-- 

GNU/Linux Solutions                  e-mail:    giometti@enneenne.com
Linux Device Driver                             giometti@gnudd.com
Embedded Systems                     		giometti@linux.it
UNIX programming                     phone:     +39 349 2432127