Documentation/ABI/testing/sysfs-pps

   1 What:           /sys/class/pps/
   2 Date:           February 2008
   3 Contact:        Rodolfo Giometti <giometti@linux.it>
   4 Description:
   5                 The /sys/class/pps/ directory will contain files and
   6                 directories that will provide a unified interface to
   7                 the PPS sources.
   8
   9 What:           /sys/class/pps/ppsX/
  10 Date:           February 2008
  11 Contact:        Rodolfo Giometti <giometti@linux.it>
  12 Description:
  13                 The /sys/class/pps/ppsX/ directory is related to X-th
  14                 PPS source into the system. Each directory will
  15                 contain files to manage and control its PPS source.
  16
  17 What:           /sys/class/pps/ppsX/assert
  18 Date:           February 2008
  19 Contact:        Rodolfo Giometti <giometti@linux.it>
  20 Description:
  21                 The /sys/class/pps/ppsX/assert file reports the assert events
  22                 and the assert sequence number of the X-th source in the form:
  23
  24                         <secs>.<nsec>#<sequence>
  25
  26                 If the source has no assert events the content of this file
  27                 is empty.
  28
  29 What:           /sys/class/pps/ppsX/clear
  30 Date:           February 2008
  31 Contact:        Rodolfo Giometti <giometti@linux.it>
  32 Description:
  33                 The /sys/class/pps/ppsX/clear file reports the clear events
  34                 and the clear sequence number of the X-th source in the form:
  35
  36                         <secs>.<nsec>#<sequence>
  37
  38                 If the source has no clear events the content of this file
  39                 is empty.
  40
  41 What:           /sys/class/pps/ppsX/mode
  42 Date:           February 2008
  43 Contact:        Rodolfo Giometti <giometti@linux.it>
  44 Description:
  45                 The /sys/class/pps/ppsX/mode file reports the functioning
  46                 mode of the X-th source in hexadecimal encoding.
  47
  48                 Please, refer to linux/include/linux/pps.h for further
  49                 info.
  50
  51 What:           /sys/class/pps/ppsX/echo
  52 Date:           February 2008
  53 Contact:        Rodolfo Giometti <giometti@linux.it>
  54 Description:
  55                 The /sys/class/pps/ppsX/echo file reports if the X-th does
  56                 or does not support an "echo" function.
  57
  58 What:           /sys/class/pps/ppsX/name
  59 Date:           February 2008
  60 Contact:        Rodolfo Giometti <giometti@linux.it>
  61 Description:
  62                 The /sys/class/pps/ppsX/name file reports the name of the
  63                 X-th source.
  64
  65 What:           /sys/class/pps/ppsX/path
  66 Date:           February 2008
  67 Contact:        Rodolfo Giometti <giometti@linux.it>
  68 Description:
  69                 The /sys/class/pps/ppsX/path file reports the path name of
  70                 the device connected with the X-th source.
  71
  72                 If the source is not connected with any device the content
  73                 of this file is empty.