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Diffstat (limited to 'Documentation/ABI/testing/sysfs-ptp')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-ptp | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/Documentation/ABI/testing/sysfs-ptp b/Documentation/ABI/testing/sysfs-ptp deleted file mode 100644 index d40d2b55050..00000000000 --- a/Documentation/ABI/testing/sysfs-ptp +++ /dev/null @@ -1,98 +0,0 @@ -What: /sys/class/ptp/ -Date: September 2010 -Contact: Richard Cochran <richardcochran@gmail.com> -Description: - This directory contains files and directories - providing a standardized interface to the ancillary - features of PTP hardware clocks. - -What: /sys/class/ptp/ptpN/ -Date: September 2010 -Contact: Richard Cochran <richardcochran@gmail.com> -Description: - This directory contains the attributes of the Nth PTP - hardware clock registered into the PTP class driver - subsystem. - -What: /sys/class/ptp/ptpN/clock_name -Date: September 2010 -Contact: Richard Cochran <richardcochran@gmail.com> -Description: - This file contains the name of the PTP hardware clock - as a human readable string. - -What: /sys/class/ptp/ptpN/max_adjustment -Date: September 2010 -Contact: Richard Cochran <richardcochran@gmail.com> -Description: - This file contains the PTP hardware clock's maximum - frequency adjustment value (a positive integer) in - parts per billion. - -What: /sys/class/ptp/ptpN/n_alarms -Date: September 2010 -Contact: Richard Cochran <richardcochran@gmail.com> -Description: - This file contains the number of periodic or one shot - alarms offer by the PTP hardware clock. - -What: /sys/class/ptp/ptpN/n_external_timestamps -Date: September 2010 -Contact: Richard Cochran <richardcochran@gmail.com> -Description: - This file contains the number of external timestamp - channels offered by the PTP hardware clock. - -What: /sys/class/ptp/ptpN/n_periodic_outputs -Date: September 2010 -Contact: Richard Cochran <richardcochran@gmail.com> -Description: - This file contains the number of programmable periodic - output channels offered by the PTP hardware clock. - -What: /sys/class/ptp/ptpN/pps_avaiable -Date: September 2010 -Contact: Richard Cochran <richardcochran@gmail.com> -Description: - This file indicates whether the PTP hardware clock - supports a Pulse Per Second to the host CPU. Reading - "1" means that the PPS is supported, while "0" means - not supported. - -What: /sys/class/ptp/ptpN/extts_enable -Date: September 2010 -Contact: Richard Cochran <richardcochran@gmail.com> -Description: - This write-only file enables or disables external - timestamps. To enable external timestamps, write the - channel index followed by a "1" into the file. - To disable external timestamps, write the channel - index followed by a "0" into the file. - -What: /sys/class/ptp/ptpN/fifo -Date: September 2010 -Contact: Richard Cochran <richardcochran@gmail.com> -Description: - This file provides timestamps on external events, in - the form of three integers: channel index, seconds, - and nanoseconds. - -What: /sys/class/ptp/ptpN/period -Date: September 2010 -Contact: Richard Cochran <richardcochran@gmail.com> -Description: - This write-only file enables or disables periodic - outputs. To enable a periodic output, write five - integers into the file: channel index, start time - seconds, start time nanoseconds, period seconds, and - period nanoseconds. To disable a periodic output, set - all the seconds and nanoseconds values to zero. - -What: /sys/class/ptp/ptpN/pps_enable -Date: September 2010 -Contact: Richard Cochran <richardcochran@gmail.com> -Description: - This write-only file enables or disables delivery of - PPS events to the Linux PPS subsystem. To enable PPS - events, write a "1" into the file. To disable events, - write a "0" into the file. |