1. 18 Oct, 2011 1 commit
    • Sarah Sharp's avatar
      xHCI/USB: Make xHCI driver have a BOS descriptor. · 48e82361
      Sarah Sharp authored
      To add USB 3.0 link power management (LPM), we need to know what the U1
      and U2 exit latencies are for the xHCI host controller.  External USB 3.0
      hubs report these values through the SuperSpeed Capabilities descriptor in
      the BOS descriptor.  Make the USB 3.0 roothub for the xHCI host behave
      like an external hub and return the BOS descriptors.
      
      The U1 and U2 exit latencies will vary across each host controller, so we
      need to dynamically fill those values in by reading the exit latencies out
      of the xHC registers.  Make the roothub code in the USB core handle
      hub_control() returning the length of the data copied.
      Signed-off-by: default avatarSarah Sharp <sarah.a.sharp@linux.intel.com>
      Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      48e82361
  2. 13 Oct, 2011 39 commits