Description:
Revision number of the supported USB Type-C specification.
+What: /sys/class/typec/<port>/orientation
+Date: February 2020
+Contact: Badhri Jagan Sridharan <badhri@google.com>
+Description:
+ Indicates the active orientation of the Type-C connector.
+ Valid values:
+ - "normal": CC1 orientation
+ - "reverse": CC2 orientation
+ - "unknown": Orientation cannot be determined.
USB Type-C partner devices (eg. /sys/class/typec/port0-partner/)
}
static DEVICE_ATTR_RO(usb_power_delivery_revision);
+static ssize_t orientation_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct typec_port *p = to_typec_port(dev);
+ enum typec_orientation orientation = typec_get_orientation(p);
+
+ switch (orientation) {
+ case TYPEC_ORIENTATION_NORMAL:
+ return sprintf(buf, "%s\n", "normal");
+ case TYPEC_ORIENTATION_REVERSE:
+ return sprintf(buf, "%s\n", "reverse");
+ case TYPEC_ORIENTATION_NONE:
+ default:
+ return sprintf(buf, "%s\n", "unknown");
+ }
+}
+static DEVICE_ATTR_RO(orientation);
+
static struct attribute *typec_attrs[] = {
&dev_attr_data_role.attr,
&dev_attr_power_operation_mode.attr,
&dev_attr_usb_typec_revision.attr,
&dev_attr_vconn_source.attr,
&dev_attr_port_type.attr,
+ &dev_attr_orientation.attr,
NULL,
};
return 0;
if (port->cap->type != TYPEC_PORT_DRP)
return 0444;
+ } else if (attr == &dev_attr_orientation.attr) {
+ if (port->cap->orientation_aware)
+ return 0444;
+ return 0;
}
return attr->mode;
}
port->orientation = orientation;
+ sysfs_notify(&port->dev.kobj, NULL, "orientation");
+ kobject_uevent(&port->dev.kobj, KOBJ_CHANGE);
return 0;
}
port->typec_caps.pd_revision = 0x0300; /* USB-PD spec release 3.0 */
port->typec_caps.driver_data = port;
port->typec_caps.ops = &tcpm_ops;
+ port->typec_caps.orientation_aware = 1;
port->partner_desc.identity = &port->partner_ident;
port->port_type = port->typec_caps.type;