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-rw-r--r--Documentation/ABI/testing/sysfs-bus-thunderbolt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-thunderbolt b/Documentation/ABI/testing/sysfs-bus-thunderbolt
index 05afeee05538..3537ba1ba892 100644
--- a/Documentation/ABI/testing/sysfs-bus-thunderbolt
+++ b/Documentation/ABI/testing/sysfs-bus-thunderbolt
@@ -290,6 +290,13 @@ Contact: thunderbolt-software@lists.01.org
Description: This contains XDomain service specific settings as
bitmask. Format: %x
+What: /sys/bus/thunderbolt/devices/usb4_portX/link
+Date: Sep 2021
+KernelVersion: v5.14
+Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
+Description: Returns the current link mode. Possible values are
+ "usb4", "tbt" and "none".
+
What: /sys/bus/thunderbolt/devices/<device>:<port>.<index>/device
Date: Oct 2020
KernelVersion: v5.9