Diffstat (limited to 'Documentation/ABI/testing/sysfs-ptp')
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/ABI/testing/sysfs-ptp b/Documentation/ABI/testing/sysfs-ptp
index d40d2b55050..05aeedf1779 100644
@@ -19,7 +19,11 @@ Date: September 2010
Contact: Richard Cochran <email@example.com>
This file contains the name of the PTP hardware clock
- as a human readable string.
+ as a human readable string. The purpose of this
+ attribute is to provide the user with a "friendly
+ name" and to help distinguish PHY based devices from
+ MAC based ones. The string does not necessarily have
+ to be any kind of unique id.
Date: September 2010