.\" $NetBSD: ustir.4,v 1.5 2014/03/18 18:20:39 riastradh Exp $
.\"
.\" Copyright (c) 2001 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by David Sainty <David.Sainty@dtsp.co.nz>
.\"
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.Dd December 24, 2001
.Dt USTIR 4
.Os
.Sh NAME
.Nm ustir
.Nd SigmaTel STIr4200-based USB-IrDA bridge support
.Sh SYNOPSIS
.Cd "ustir*   at uhub?"
.Cd "irframe* at ustir?"
.Sh DESCRIPTION
The
.Nm
driver provides support for USB-IrDA bridges based on the SigmaTel STIr4200.
The driver is known to work with the following adapters:
.Pp
.Bl -item -offset indent -compact
.It
.Tn Mars II 740 USB IrDA Adapter
.El
.Pp
Access to the IrDA device is through the
.Xr irframe 4
driver.
.Sh SEE ALSO
.Xr irframe 4 ,
.Xr uirda 4 ,
.Xr usb 4
.Sh HISTORY
The
.Nm
driver
appeared in
.Nx 1.6 .
.Sh AUTHORS
The
.Nm
driver was written by
.An David Sainty Aq Mt David.Sainty@dtsp.co.nz .
.Sh BUGS
The STIr4200 cannot notify the driver when it has received data, instead it
has to be continuously polled.  This driver polls (when idle) at a fairly low
rate of 10 times per second, which means that system performance is not overly
affected by rapid polling, but latency is fairly high.