.\" $NetBSD: stuirda.4,v 1.8 2012/03/17 11:11:00 wiz Exp $
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.\" Copyright (c) 2007 The NetBSD Foundation, Inc.
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.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Lennart Augustsson.
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.Dd October 13, 2008
.Dt STUIRDA 4
.Os
.Sh NAME
.Nm stuirda
.Nd Sigmaltel 4116/4220 USB-IrDA bridge support
.Sh SYNOPSIS
.Cd "stuirda*   at uhub?"
.Cd "irframe* at uirda?"
.Sh DESCRIPTION
The
.Nm
driver provides support for SigmaTels USB-IrDA bridges that nearly follow
the bridge specification:
.Pp
.Bl -tag -width Dv -offset indent -compact
.It Tn SigmaTel ST4116
.It Tn SigmaTel ST4210
.It Tn SigmaTel ST4220
.El
.Pp
Access to the IrDA device is through the
.Xr irframe 4
driver.
Before accessing it, a firmware patch must be downloaded.
At the time of writing this, it can be found at:
.Lk http://www.sigmatel.com/documents/stir4210_4220_4116_patch_files.tar.gz
.Pp
Unpack the archive with
.Pp
.Nm tar
.Fl C
.Pa /libdata/firmware/stuirda/
.Fl xzf
.Ar stir4210_4220_4116_patch_files.tar.gz
.Sh SEE ALSO
.Xr irframe 4 ,
.Xr usb 4
.Sh HISTORY
The
.Nm
driver
appeared in
.Nx 5.0 .
.Sh BUGS
.Nm stuirda
needs the firmware for configuration, so it can't be loaded at kernel
startup time.
As a workaround, you can plug in the USB-IrDA-bridge after booting.