LinuxPPS (RESUBMIT 2): the PPS Linux implementation.

This patch set adds the PPS support into Linux.

PPS means "pulse per second" and its API is specified by RFC 2783
(Pulse-Per-Second API for UNIX-like Operating Systems, Version 1.0).

The code has been tested with the NTPD program
(http://www.eecis.udel.edu/~mills/ntp/html/index.html) and several GPS
antennae.

Rodolfo

--

 Documentation/pps/Makefile            |    2 
 b/Documentation/ABI/testing/sysfs-pps |   73 +++++++
 b/Documentation/ioctl-number.txt      |    2 
 b/Documentation/pps/Makefile          |   27 ++
 b/Documentation/pps/pps.txt           |  170 ++++++++++++++++
 b/Documentation/pps/ppsctl.c          |   63 ++++++
 b/Documentation/pps/ppsfind           |   17 +
 b/Documentation/pps/ppstest.c         |  152 +++++++++++++++
 b/Documentation/pps/timepps.h         |  196 +++++++++++++++++++
 b/MAINTAINERS                         |    7 
 b/drivers/Kconfig                     |    2 
 b/drivers/Makefile                    |    1 
 b/drivers/char/lp.c                   |   61 ++++++
 b/drivers/pps/Kconfig                 |   33 +++
 b/drivers/pps/Makefile                |    8 
 b/drivers/pps/clients/Kconfig         |   18 +
 b/drivers/pps/clients/Makefile        |    9 
 b/drivers/pps/clients/ktimer.c        |  115 +++++++++++
 b/drivers/pps/kapi.c                  |  272 +++++++++++++++++++++++++++
 b/drivers/pps/pps.c                   |  342 ++++++++++++++++++++++++++++++++++
 b/drivers/pps/sysfs.c                 |  130 ++++++++++++
 b/drivers/serial/8250.c               |    2 
 b/drivers/serial/serial_core.c        |   71 ++++++-
 b/include/linux/Kbuild                |    1 
 b/include/linux/parport.h             |   13 +
 b/include/linux/pps.h                 |  205 ++++++++++++++++++++
 b/include/linux/serial_core.h         |   31 ++-
 drivers/pps/Kconfig                   |    2 
 drivers/pps/Makefile                  |    1 
 drivers/pps/clients/Kconfig           |   20 +
 30 files changed, 2031 insertions(+), 15 deletions(-)