diff options
Diffstat (limited to 'drivers/usb/core/port.c')
| -rw-r--r-- | drivers/usb/core/port.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c index 3734850120ae..fe5959fc021b 100644 --- a/drivers/usb/core/port.c +++ b/drivers/usb/core/port.c @@ -20,6 +20,48 @@ #include "hub.h" +static const struct attribute_group *port_dev_group[]; + +static ssize_t show_port_connect_type(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct usb_port *port_dev = to_usb_port(dev); + char *result; + + switch (port_dev->connect_type) { + case USB_PORT_CONNECT_TYPE_HOT_PLUG: + result = "hotplug"; + break; + case USB_PORT_CONNECT_TYPE_HARD_WIRED: + result = "hardwired"; + break; + case USB_PORT_NOT_USED: + result = "not used"; + break; + default: + result = "unknown"; + break; + } + + return sprintf(buf, "%s\n", result); +} +static DEVICE_ATTR(connect_type, S_IRUGO, show_port_connect_type, + NULL); + +static struct attribute *port_dev_attrs[] = { + &dev_attr_connect_type.attr, + NULL, +}; + +static struct attribute_group port_dev_attr_grp = { + .attrs = port_dev_attrs, +}; + +static const struct attribute_group *port_dev_group[] = { + &port_dev_attr_grp, + NULL, +}; + static void usb_port_device_release(struct device *dev) { struct usb_port *port_dev = to_usb_port(dev); @@ -45,6 +87,7 @@ int usb_hub_create_port_device(struct usb_hub *hub, int port1) hub->ports[port1 - 1] = port_dev; port_dev->dev.parent = hub->intfdev; + port_dev->dev.groups = port_dev_group; port_dev->dev.type = &usb_port_device_type; dev_set_name(&port_dev->dev, "port%d", port1); |