USB: Add USB 3.0 roothub support to USB core.

Add USB 3.0 root hub descriptors.  This is a kludge because I reused the old
USB 2.0 descriptors, instead of using the new USB 3.0 hub descriptors with
endpoint companion descriptors and other descriptors.  I did this because I
wasn't ready to add USB 3.0 hub changes to khubd.  For now, a USB 3.0 roothub
looks like a USB 2.0 roothub, with a higher speed.

USB 3.0 hubs have no transaction translator (TT).

Make USB core debugging handle super speed ports.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index fa0208e0da6..f3fe8dfaaad 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -155,6 +155,8 @@ static inline char *portspeed(int portstatus)
                 return "480 Mb/s";
         else if (portstatus & (1 << USB_PORT_FEAT_LOWSPEED))
                 return "1.5 Mb/s";
+        else if (portstatus & (1 << USB_PORT_FEAT_SUPERSPEED))
+                return "5.0 Gb/s";
         else
                 return "12 Mb/s";
 }
@@ -951,6 +953,9 @@ static int hub_configure(struct usb_hub *hub,
                                         ret);
                         hub->tt.hub = hdev;
                         break;
+                case 3:
+                        /* USB 3.0 hubs don't have a TT */
+                        break;
                 default:
                         dev_dbg(hub_dev, "Unrecognized hub protocol %d\n",
                                 hdev->descriptor.bDeviceProtocol);