add simple manual for url(4)

share/man/man4/url.4

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+.\"	$NetBSD: url.4,v 1.1 2002/03/28 21:35:28 ichiro Exp $
+.\"
+.\" Copyright (c) 2002 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"        This product includes software developed by the NetBSD
+.\"        Foundation, Inc. and its contributors.
+.\" 4. Neither the name of The NetBSD Foundation nor the names of its
+.\"    contributors may be used to endorse or promote products derived
+.\"    from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd Mar 29, 2002
+.Dt URL 4
+.Os
+.Sh NAME
+.Nm url
+.Nd Realtek RL8150L USB Ethernet driver
+.Sh SYNOPSIS
+.Cd "url*    at uhub?"
+.Cd "urlphy* at mii?"
+.Sh HARDWARE
+The
+.Nm
+driver supports the following adapters:
+.Pp
+.Bl -tag -width Dv -offset indent -compact
+.It Tn Melco Inc. LUA-KTX
+.It Tn GreenHouse GH-USB100B
+.El
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for USB
+.Tn Ethernet
+adapters based on the Realtek RL8150L USB-ether bridge chip.
+.Pp
+For more information on configuring this device, see
+.Xr ifconfig 8 .
+.Sh DIAGNOSTICS
+.Bl -diag
+.It "url%d: watchdog timeout"
+A packet was queued for transmission and a transmit command was
+issued, however the device failed to acknowledge the transmission
+before a timeout expired.
+.It "url%d: no memory for rx list"
+The driver failed to allocate an mbuf for the receiver ring.
+.El
+.Sh SEE ALSO
+.Xr arp 4 ,
+.Xr netintro 4 ,
+.Xr usb 4 ,
+.Xr ifconfig 8
+.Sh HISTORY
+The
+.Nm
+device driver first appeared in
+.Nx 1.5 .
+.Sh AUTHORS
+The
+.Nm
+driver was written by
+.An Shingo WATANABE
+.Aq nabe@nabechan.org .