Re: [RFC] PPS: Implementing LinuxPPS API with new syscalls
From: Rodolfo Giometti
Date: Thu Jun 07 2007 - 06:12:57 EST
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
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