Lan Tianyu fa2a956625
usb: make usb port a real device ...
This patch turns each USB port on a hub into a new struct device. This
new device has the USB hub interface device as its parent. The port
devices are stored in a new structure (usb_port), and an array of
usb_ports are dynamically allocated once we know how many ports the USB
hub has.
Move the port_owner variable out of usb_hub and into this new structure.
A new file will be created in the hub interface sysfs directory, so
add documentation.
Acked-by: Alan Stern <stern@rowland.harvard.edu >
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com >
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com >
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
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fa2a956625
