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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2021-04-01 17:34:20 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2021-06-01 10:53:31 +0300 |
| commit | cae5f5151d76635f6b5c08133184c48048346e63 (patch) | |
| tree | bdda8980468d7203038b278503635dbb9e8f198e /Documentation/ABI/testing/sysfs-bus-thunderbolt | |
| parent | 0f28879cf6836f170773a9456c856e1f08f56764 (diff) | |
| download | linux-cae5f5151d76635f6b5c08133184c48048346e63.tar.xz | |
thunderbolt: Add USB4 port devices
Create devices for each USB4 port. This is needed when we add retimer
access when there is no device connected but may be useful for other
purposes too following what USB subsystem does. This exports a single
attribute "link" that shows the type of the USB4 link (or "none" if
there is no cable connected).
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-thunderbolt')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-thunderbolt | 7 |
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 |