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    usbcore: set device and power states properly · 2bf4086d
    Alan Stern 提交于
    This patch (as733) fixes up the places where device states and power
    states are set in usbcore.  Right now things are duplicated or missing;
    this should straighten things out.
    
    The idea is that udev->state is USB_STATE_SUSPENDED exactly when the
    device's upstream port has been suspended, whereas
    udev->dev.power.power_state.event reflects the result of the last call
    to the suspend/resume routines (which might not actually change the
    device state, especially if CONFIG_USB_SUSPEND isn't set).
    Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
    Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
    2bf4086d
driver.c 26.0 KB