On Wed, Dec 01, 2010 at 03:56:00PM -0500, Alan Stern wrote: > On Wed, 1 Dec 2010, Alan Stern wrote: > > > Add a bcdUSB field to the usb_bus structure (might as well make it > > host-endian since it won't get exposed outside usbcore). This > > information really belongs there rather than in the driver->flags > > field, since xhci-hcd now provides two different kinds of buses, but > > removing it from the driver would mean changing a lot of existing code. > > > > The new field can be initialized based on the driver's HCD_MASK bits, > > and xhci-hcd could adjust it as needed. Then whereever hcd.c tests > > hcd->driver->flags & HCD_MASK, test hcd->self.bcdUSB instead. > > You can also avoid making so many changes to usb_hcd_pci_probe() by > registering your own probe routine in xhci-pci.c. Have it call > usb_hcd_pci_probe() twice. You can add a new HCD_NO_RESOURCES flag > bit, to prevent the various interrupt and memory resources from being > allocated when the second hcd is registered. I'll look into that. But how would registering my own probe routine help to coordinate the allocation of only one bandwidth mutex? It really seems like that needs to be in the core. Sarah Sharp -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
