interface: Introduce a method to get the PHC index.

Signed-off-by: Richard Cochran <richardcochran@gmail.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
PADL · Mar 4, 2020 · a228de7 · a228de7
1 parent e43a76c
commit a228de7
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diff --git a/interface.c b/interface.c
@@ -28,6 +28,11 @@ const char *interface_name(struct interface *iface)
 	return iface->name;
 }
 
+int interface_phc_index(struct interface *iface)
+{
+	return iface->ts_info.phc_index;
+}
+
 void interface_set_label(struct interface *iface, const char *label)
 {
 	strncpy(iface->ts_label, label, MAX_IFNAME_SIZE);

diff --git a/interface.h b/interface.h
@@ -53,6 +53,13 @@ const char *interface_label(struct interface *iface);
  */
 const char *interface_name(struct interface *iface);
 
+/**
+ * Obtains the index of a PTP Hardware Clock device from a network interface.
+ * @param iface  The interface of interest.
+ * @return       The PHC index of the interface.
+ */
+int interface_phc_index(struct interface *iface);
+
 /**
  * Set the time stamping label of a given interface.
  * @param iface  The interface of interest.