'\" t
.\"     Title: usb_hub_find_child
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: USB Core APIs
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "USB_HUB_FIND_CHILD" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "USB Core APIs"
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.SH "NAME"
usb_hub_find_child \- Get the pointer of child device attached to the port which is specified by \fIport1\fR\&.
.SH "SYNOPSIS"
.HP \w'struct\ usb_device\ *\ usb_hub_find_child('u
.BI "struct usb_device * usb_hub_find_child(struct\ usb_device\ *\ " "hdev" ", int\ " "port1" ");"
.SH "ARGUMENTS"
.PP
\fIhdev\fR
.RS 4
USB device belonging to the usb hub
.RE
.PP
\fIport1\fR
.RS 4
port num to indicate which port the child device is attached to\&.
.RE
.SH "DESCRIPTION"
.PP
USB drivers call this function to get hub\*(Aqs child device pointer\&.
.SH "RETURN"
.PP
\fBNULL\fR
if input param is invalid and child\*(Aqs usb_device pointer if non\-NULL\&.
.SH "COPYRIGHT"
.br