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-rw-r--r--Documentation/ABI/testing/sysfs-bus-thunderbolt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-thunderbolt b/Documentation/ABI/testing/sysfs-bus-thunderbolt
index 581dea95245b..d7f09d011b6d 100644
--- a/Documentation/ABI/testing/sysfs-bus-thunderbolt
+++ b/Documentation/ABI/testing/sysfs-bus-thunderbolt
@@ -85,6 +85,8 @@ Description: This attribute holds current Thunderbolt security level
usbonly Automatically tunnel USB controller of the
connected Thunderbolt dock (and Display Port). All
PCIe links downstream of the dock are removed.
+ nopcie USB4 system where PCIe tunneling is disabled from
+ the BIOS.
======= ==================================================
What: /sys/bus/thunderbolt/devices/.../authorized