'\" t
.\"     Title: usb_interface_claimed
.\"    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: Host-Side Data Types and Macros
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "USB_INTERFACE_CLAIME" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Host-Side Data Types and Macro"
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.SH "NAME"
usb_interface_claimed \- returns true iff an interface is claimed
.SH "SYNOPSIS"
.HP \w'int\ usb_interface_claimed('u
.BI "int usb_interface_claimed(struct\ usb_interface\ *\ " "iface" ");"
.SH "ARGUMENTS"
.PP
\fIiface\fR
.RS 4
the interface being checked
.RE
.SH "RETURN"
.PP
\fBtrue\fR
(nonzero) iff the interface is claimed, else
\fBfalse\fR
(zero)\&.
.SH "NOTE"
.PP
Callers must own the driver model\*(Aqs usb bus readlock\&. So driver
\fBprobe\fR
entries don\*(Aqt need extra locking, but other call contexts may need to explicitly claim that lock\&.
.SH "COPYRIGHT"
.br