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    USB: Set usb port's DeviceRemovable according acpi information · d2123fd9
    Lan Tianyu 提交于
    ACPI provide "_PLD" and "_UPC" aml methods to describe usb port
    visibility and connectability. This patch is to add usb_hub_adjust_DeviceRemovable()
    to adjust usb hub port's DeviceRemovable according ACPI information and invoke it in
    the rh_call_control(). When hub descriptor request is issued at first time,
    usb port device isn't created and usb port is not bound with acpi. So first
    hub descriptor request is not changed based on ACPI information. After usb
    port devices being created, call usb_hub_adjust_DeviceRemovable in the hub_configure()
    and then set hub port's DeviceRemovable according ACPI information and this also works
    for non-root hub.
    Acked-by: NAlan Stern <stern@rowland.harvard.edu>
    Signed-off-by: NLan Tianyu <tianyu.lan@intel.com>
    Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    d2123fd9
hub.c 149.0 KB