| USB_HUB_FIND_CHILD(9) | USB Core APIs | USB_HUB_FIND_CHILD(9) |
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.
COPYRIGHT¶
| June 2024 | Kernel Hackers Manual 3.10 |