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USB: xhci: Root hub support.

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Add functionality for getting port status and hub descriptor for xHCI root
hubs.  This is WIP because the USB 3.0 hub descriptor is different from
the USB 2.0 hub descriptor.  For now, we lie about the root hub descriptor
because the changes won't effect how the core talks to the root hub.
Later we will need to add the USB 3.0 hub descriptor for real hubs, and
this code might change.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Sarah Sharp
2009-04-27 19:57:12 -07:00
committed by Greg Kroah-Hartman
parent 7206b00164
commit 0f2a79300a
6 changed files with 390 additions and 5 deletions
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3
drivers/usb/host/xhci-hcd.c
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@ -349,6 +349,9 @@ int xhci_run(struct usb_hcd *hcd)
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
void (*doorbell)(struct xhci_hcd *) = NULL;
hcd->uses_new_polling = 1;
hcd->poll_rh = 0;
xhci_dbg(xhci, "xhci_run\n");
#if 0 /* FIXME: MSI not setup yet */
/* Do this at the very last minute */