linux/Documentation/ABI/testing/sysfs-pps
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   1What:           /sys/class/pps/
   2Date:           February 2008
   3Contact:        Rodolfo Giometti <giometti@linux.it>
   4Description:
   5                The /sys/class/pps/ directory will contain files and
   6                directories that will provide a unified interface to
   7                the PPS sources.
   8
   9What:           /sys/class/pps/ppsX/
  10Date:           February 2008
  11Contact:        Rodolfo Giometti <giometti@linux.it>
  12Description:
  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
  17What:           /sys/class/pps/ppsX/assert
  18Date:           February 2008
  19Contact:        Rodolfo Giometti <giometti@linux.it>
  20Description:
  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
  29What:           /sys/class/pps/ppsX/clear
  30Date:           February 2008
  31Contact:        Rodolfo Giometti <giometti@linux.it>
  32Description:
  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
  41What:           /sys/class/pps/ppsX/mode
  42Date:           February 2008
  43Contact:        Rodolfo Giometti <giometti@linux.it>
  44Description:
  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
  51What:           /sys/class/pps/ppsX/echo
  52Date:           February 2008
  53Contact:        Rodolfo Giometti <giometti@linux.it>
  54Description:
  55                The /sys/class/pps/ppsX/echo file reports if the X-th does
  56                or does not support an "echo" function.
  57
  58What:           /sys/class/pps/ppsX/name
  59Date:           February 2008
  60Contact:        Rodolfo Giometti <giometti@linux.it>
  61Description:
  62                The /sys/class/pps/ppsX/name file reports the name of the
  63                X-th source.
  64
  65What:           /sys/class/pps/ppsX/path
  66Date:           February 2008
  67Contact:        Rodolfo Giometti <giometti@linux.it>
  68Description:
  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.
  74
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