usb: hub: Change USB hub descriptor to match USB 3.0 hubs

[people/ms/u-boot.git] / include / usb.h

diff --git a/include/usb.h b/include/usb.h
index 62f051fe535c992d9acd50dbc092f17dbd9051e5..eb82cc23a8a1e60568bf5e582e945e6b2a0c7ce6 100644 (file)
--- a/include/usb.h
+++ b/include/usb.h
@@ -546,10 +546,20 @@ struct usb_hub_descriptor {
        unsigned short wHubCharacteristics;
        unsigned char  bPwrOn2PwrGood;
        unsigned char  bHubContrCurrent;
-       unsigned char  DeviceRemovable[(USB_MAXCHILDREN+1+7)/8];
-       unsigned char  PortPowerCtrlMask[(USB_MAXCHILDREN+1+7)/8];
-       /* DeviceRemovable and PortPwrCtrlMask want to be variable-length
-          bitmaps that hold max 255 entries. (bit0 is ignored) */
+       /* 2.0 and 3.0 hubs differ here */
+       union {
+               struct {
+                       /* add 1 bit for hub status change; round to bytes */
+                       __u8 DeviceRemovable[(USB_MAXCHILDREN + 1 + 7) / 8];
+                       __u8 PortPowerCtrlMask[(USB_MAXCHILDREN + 1 + 7) / 8];
+               } __attribute__ ((packed)) hs;
+
+               struct {
+                       __u8 bHubHdrDecLat;
+                       __le16 wHubDelay;
+                       __le16 DeviceRemovable;
+               } __attribute__ ((packed)) ss;
+       } u;
 } __attribute__ ((packed));