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.TH "USB_TRYLOCK_DEVICE" "9" "09 October 2005" "" ""

.SH NAME
usb_trylock_device \- attempt to acquire the lock for a usb device structure
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
int usb_trylock_device  (struct usb_device * \fIudev\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIudev\fB\fR
device that's being locked
.SH "DESCRIPTION"
.PP
Don't use this routine if you already hold a device lock;
use down_trylock(&udev->serialize) instead.
This is necessary for proper interaction with \fBusb_lock_all_devices\fR\&.
.PP
Returns 1 if successful, 0 if contention.