On Wed, Feb 21, 2007 at 08:14:14AM -0800, H. Peter Anvin wrote:
>
> If you have a kernel driver at all, then it makes perfect sense. If you
> don't have a kernel driver at all, then it's irrelevant to the
> linux-kernel discussion.
???
So you are told me that if my PPS source is connected with a single
CPU GPIO I have to add a new driver to the kernel? I have to choose a
proper major/minor numbers for just one PIN? =:-o
> >RFC simply doesn't consider the fact that you can have a PPS source
> >__without__ a filedes connected with, and a single filedes is
> >considered __always__ connected with a single PPS source.
>
> That's the Unix way.
But not PPS one. In several embedded systems the GPS antenna is
connected with the serial port and the PPS source, which cames from
the __same__ GPS antenna, is connected with a GPIO.
How I should manage such case? Which fildes I should use? Also
consider that NTPD currently manage only one filedes which should
support both GPS antenna's data and PPS source. My patch can solve
this problem.
Ciao,
Rodolfo
--
GNU/Linux Solutions e-mail: [email protected]
Linux Device Driver [email protected]
Embedded Systems [email protected]
UNIX programming phone: +39 349 2432127
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
