• Lan Tianyu's avatar
    usb: Using correct way to clear usb3.0 device's remote wakeup feature. · 54a3ac0c
    Lan Tianyu authored
    Usb3.0 device defines function remote wakeup which is only for interface
    recipient rather than device recipient. This is different with usb2.0 device's
    remote wakeup feature which is defined for device recipient. According usb3.0
    spec 9.4.5, the function remote wakeup can be modified by the SetFeature()
    requests using the FUNCTION_SUSPEND feature selector. This patch is to use
    correct way to disable usb3.0 device's function remote wakeup after suspend
    error and resuming.
    
    This should be backported to kernels as old as 3.4, that contain the
    commit 623bef9e "USB/xhci: Enable remote
    wakeup for USB3 devices."
    Signed-off-by: default avatarLan Tianyu <tianyu.lan@intel.com>
    Signed-off-by: default avatarSarah Sharp <sarah.a.sharp@linux.intel.com>
    Cc: stable@vger.kernel.org
    54a3ac0c
hub.c 150 KB