diff options
| author | Albert Wang <albertccwang@google.com> | 2021-03-18 18:13:03 +0800 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2024-03-21 17:43:49 +0200 |
| commit | e08bc0c0312b3e91fe5b752768608e4a209182f6 (patch) | |
| tree | 73507fb9cb4b045304161d4bf5eb4c5b01891178 /Documentation | |
| parent | 069ac1bc7175e12f6d2d9f92be4687146918da86 (diff) | |
usb: new attributes implementation to enable/disable usb data
Bug: 184613044
Test: driver probe and attributes access normally
Signed-off-by: Albert Wang <albertccwang@google.com>
Change-Id: Ia34cfd8e76a21f7239e356608e46ddeebd6fa10a
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-udc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-udc b/Documentation/ABI/testing/sysfs-class-udc new file mode 100644 index 000000000000..1b9c566d0552 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-udc @@ -0,0 +1,16 @@ +What: /sys/class/udc/<udc name>/device/usb_data_enabled +Date: December 2020 +Contact: "Ray Chi" <raychi@google.com> +Description: + The attribute can allow user space can check and modify + the value to enable or disable usb functionality. Therefore, + if the attritube is set to 0, USB host and USB peripheral + modes wouldn't be working. + + Example: + Enable USB data functionality + # echo 1 > /sys/class/udc/.../device/usb_data_enabled + + Disable USB data functionality + # echo 0 > /sys/class/udc/.../device/usb_data_enabled + |