Name
usb_hub_find_child —
Get the pointer of child device attached to the port which is specified by port1.
Synopsis
struct usb_device * usb_hub_find_child ( | struct usb_device * hdev, |
| | int port1); |
Arguments
hdev
USB device belonging to the usb hub
port1
port num to indicate which port the child device
is attached to.
Description
USB drivers call this function to get hub's child device
pointer.
Return
NULL if input param is invalid and
child's usb_device pointer if non-NULL.