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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. |