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| author | Richard Cochran <richardcochran@gmail.com> | 2014-03-21 01:21:54 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-03-21 22:21:14 +0400 |
| commit | 653104d19a7d490baeb94113151e95d8c04ef01d (patch) | |
| tree | 8c3bca239f689be17e526304c0164f0994b240f1 /Documentation/ABI | |
| parent | 888a36871e1924a235ad88198d903382151e4ac5 (diff) | |
| download | linux-653104d19a7d490baeb94113151e95d8c04ef01d.tar.xz | |
ptp: expose the programmable pins via sysfs
This patch adds the sysfs hooks needed in order to get and set the
programmable pin settings.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-ptp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-ptp b/Documentation/ABI/testing/sysfs-ptp index 05aeedf17794..44806a678f12 100644 --- a/Documentation/ABI/testing/sysfs-ptp +++ b/Documentation/ABI/testing/sysfs-ptp @@ -54,6 +54,26 @@ Description: This file contains the number of programmable periodic output channels offered by the PTP hardware clock. +What: /sys/class/ptp/ptpN/n_pins +Date: March 2014 +Contact: Richard Cochran <richardcochran@gmail.com> +Description: + This file contains the number of programmable pins + offered by the PTP hardware clock. + +What: /sys/class/ptp/ptpN/pins +Date: March 2014 +Contact: Richard Cochran <richardcochran@gmail.com> +Description: + This directory contains one file for each programmable + pin offered by the PTP hardware clock. The file name + is the hardware dependent pin name. Reading from this + file produces two numbers, the assigned function (see + the PTP_PF_ enumeration values in linux/ptp_clock.h) + and the channel number. The function and channel + assignment may be changed by two writing numbers into + the file. + What: /sys/class/ptp/ptpN/pps_avaiable Date: September 2010 Contact: Richard Cochran <richardcochran@gmail.com> |