summaryrefslogtreecommitdiff
path: root/Documentation/ptp/ptp.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/ptp/ptp.txt')
-rw-r--r--Documentation/ptp/ptp.txt5
1 files changed, 1 insertions, 4 deletions
diff --git a/Documentation/ptp/ptp.txt b/Documentation/ptp/ptp.txt
index ae8fef86b832..11e904ee073f 100644
--- a/Documentation/ptp/ptp.txt
+++ b/Documentation/ptp/ptp.txt
@@ -18,7 +18,6 @@
- Adjust clock frequency
+ Ancillary clock features
- - One short or periodic alarms, with signal delivery to user program
- Time stamp external events
- Period output signals configurable from user space
- Synchronization of the Linux system time via the PPS subsystem
@@ -48,9 +47,7 @@
User space programs may control the clock using standardized
ioctls. A program may query, enable, configure, and disable the
ancillary clock features. User space can receive time stamped
- events via blocking read() and poll(). One shot and periodic
- signals may be configured via the POSIX timer_settime() system
- call.
+ events via blocking read() and poll().
** Writing clock drivers