diff options
| author | Peter Chen <peter.chen@nxp.com> | 2019-01-14 16:46:18 +0800 |
|---|---|---|
| committer | Peter Chen <peter.chen@nxp.com> | 2019-04-04 14:17:09 +0800 |
| commit | 270c1ea5168763a03f79c4f9ecadb2cd18dc08f9 (patch) | |
| tree | 7d148efc82ed2b8c5a5e0a43198b9ae1188b76a2 /Documentation/ABI | |
| parent | 6ee6e32b0c3fcbea70117eaea3c315f0e220144c (diff) | |
MLK-20754 usb: cdns3: add role switch sys entry
It is an experimental feature, and tested by internal team for
Carplay feature.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-platform-cadence-usb3 | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-platform-cadence-usb3 b/Documentation/ABI/testing/sysfs-platform-cadence-usb3 new file mode 100644 index 000000000000..c969518dcc30 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-cadence-usb3 @@ -0,0 +1,9 @@ +What: /sys/bus/platform/devices/5b110000.usb3/role +Date: Jan 2019 +Contact: Peter Chen <peter.chen@nxp.com> +Description: + It returns string "gadget", "host" and "none" when read it, + it indicates current controller role. + + It will do role switch when write "gadget" or "host" to it. + Only controller at dual-role configuration supports writing. |