'\" t
.\"     Title: usb_for_each_dev
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: USB Core APIs
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "USB_FOR_EACH_DEV" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "USB Core APIs"
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.SH "NAME"
usb_for_each_dev \- iterate over all USB devices in the system
.SH "SYNOPSIS"
.HP \w'int\ usb_for_each_dev('u
.BI "int usb_for_each_dev(void\ *\ " "data" ", int\ (*" "fn" ")\ (struct\ usb_device\ *,\ void\ *));"
.SH "ARGUMENTS"
.PP
\fIdata\fR
.RS 4
data pointer that will be handed to the callback function
.RE
.PP
\fIfn\fR
.RS 4
callback function to be called for each USB device
.RE
.SH "DESCRIPTION"
.PP
Iterate over all USB devices and call
\fIfn\fR
for each, passing it
\fIdata\fR\&. If it returns anything other than 0, we break the iteration prematurely and return that value\&.
.SH "COPYRIGHT"
.br