<commit_before>.\"
.\" Copyright (c) 2010 <NAME>.
.\" 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.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" $FreeBSD$
.\"
.Dd December 4, 2010
.Dt USBDUMP 8
.Os
.Sh NAME
.Nm usbdump
.Nd "dump traffic on USB host controller"
.Sh SYNOPSIS
.Nm
.Op Fl i Ar ifname
.Op Fl r Ar file
.Op Fl s Ar snaplen
.Op Fl v
.Op Fl w Ar file
.Sh DESCRIPTION
The
.Nm
utility provides a way to dump USB packets on host controllers.
.Pp
The following options are accepted:
.Bl -tag -width ".Fl f Ar file"
.It Fl i Ar ifname
Listen on USB bus interface
.Ar ifname .
.It Fl r Ar file
Read the raw packets from
.Ar file .
.It Fl s Ar snaplen
Snapshot
.Ar snaplen
bytes from each packet.
.It Fl v
Enable debugging messages.
When defined multiple times the verbosity level increases.
.It Fl w Ar file
Write the raw packets to
.Ar file .
.El
.Sh EXAMPLES
Captures USB raw packets on usbus2:
.Pp
.Dl "usbdump -i usbus2 -s 256 -v"
.Pp
Dumps the USB raw packets of usbus2 into the file without packet
size limit:
.Pp
.Dl "usbdump -i usbus2 -s 0 -w /tmp/dump_pkts"
.Pp
Read the USB raw packets from previous file:
.Pp
.Dl "usbdump -r /tmp/dump_pkts -v"
.Sh OUTPUT FORMAT
The output format of
.Nm
is as follows:
.Pp
.Dl "<time> <bus>.<addr> <ep> <xfertype> <S/D> (<frames>/<length>) <...>"
.Pp
The meaning of the output format elements is as follows:
.Bl -tag -width "<xfertype>"
.It <time>
A timestamp preceding all output lines.
The timestamp has the format "hh:mm:ss.frac" and is as accurate as
the kernel's clock.
.It <bus>
The USB host controller's bus unit number.
.It <addr>
The unique number of the USB device as allocated by the host controller driver.
.It <ep>
The USB endpoint address that indicates whether the address is
.Dv OUT
or
.Dv IN .
.It <xfertype>
The USB transfer type.
Can be
.Dv CTRL ,
.Dv ISOC ,
.Dv BULK
or
.Dv INTR .
.It <S/D>
`S' indicates a USB submit.
`D' indicates a USB transfer done.
.It <frames>
Numbers of frames in this packets.
If this is a USB submit, its value is
.Li xfer->nframes
which means how many frames are acceptable or registered to transfer.
If this is a USB done,
.Li xfer->aframes
is the actual number of frames.
.It <length>
Total packet size.
If this is a USB submit, its value is
.Li xfer->sumlen .
If this is a USB done, its value is
.Li xfer->actlen .
.It <...>
Optional field used for printing an error string if the packet is from USB done.
.El
.Sh SEE ALSO
.Xr usbconfig 8
.Sh AUTHORS
.An <NAME>
.Aq <EMAIL>
<commit_msg>Minor wording adjustments to usbdump(8).<commit_after>.\"
.\" Copyright (c) 2010 <NAME>.
.\" 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.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" $FreeBSD$
.\"
.Dd May 31, 2011
.Dt USBDUMP 8
.Os
.Sh NAME
.Nm usbdump
.Nd "dump traffic on USB host controller"
.Sh SYNOPSIS
.Nm
.Op Fl i Ar ifname
.Op Fl r Ar file
.Op Fl s Ar snaplen
.Op Fl v
.Op Fl w Ar file
.Sh DESCRIPTION
The
.Nm
utility provides a way to dump USB packets on host controllers.
.Pp
The following options are accepted:
.Bl -tag -width ".Fl f Ar file"
.It Fl i Ar ifname
Listen on USB bus interface
.Ar ifname .
.It Fl r Ar file
Read the raw packets from
.Ar file .
.It Fl s Ar snaplen
Snapshot
.Ar snaplen
bytes from each packet.
.It Fl v
Enable debugging messages.
When defined multiple times the verbosity level increases.
.It Fl w Ar file
Write the raw packets to
.Ar file .
.El
.Sh EXAMPLES
Capture the USB raw packets on usbus2:
.Pp
.Dl "usbdump -i usbus2 -s 256 -v"
.Pp
Dump the USB raw packets of usbus2 into the file without packet
size limit:
.Pp
.Dl "usbdump -i usbus2 -s 0 -w /tmp/dump_pkts"
.Pp
Read and display the USB raw packets from previous file:
.Pp
.Dl "usbdump -r /tmp/dump_pkts -v"
.Sh OUTPUT FORMAT
The output format of
.Nm
is as follows:
.Pp
.Dl "<time> <bus>.<addr> <ep> <xfertype> <S/D> (<frames>/<length>) <...>"
.Pp
The meaning of the output format elements is as follows:
.Bl -tag -width "<xfertype>"
.It <time>
A timestamp preceding all output lines.
The timestamp has the format "hh:mm:ss.frac" and is as accurate as
the kernel's clock.
.It <bus>
The USB host controller's bus unit number.
.It <addr>
The unique number of the USB device as allocated by the host controller driver.
.It <ep>
The USB endpoint address that indicates whether the address is
.Dv OUT
or
.Dv IN .
.It <xfertype>
The USB transfer type.
Can be
.Dv CTRL ,
.Dv ISOC ,
.Dv BULK
or
.Dv INTR .
.It <S/D>
`S' indicates a USB submit.
`D' indicates a USB transfer done.
.It <frames>
Numbers of frames in this packets.
If this is a USB submit, its value is
.Li xfer->nframes
which means how many frames are acceptable or registered to transfer.
If this is a USB done,
.Li xfer->aframes
is the actual number of frames.
.It <length>
Total packet size.
If this is a USB submit, its value is
.Li xfer->sumlen .
If this is a USB done, its value is
.Li xfer->actlen .
.It <...>
Optional field used for printing an error string if the packet is from USB done.
.El
.Sh SEE ALSO
.Xr usbconfig 8
.Sh AUTHORS
.An <NAME>
.Aq <EMAIL>

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