NAME

       irdadump - monitors the IrDA traffic on one or more links.

SYNOPSIS

       irdadump [ -b ] [ -c n ] [ -d ] [ -x ] [ -s n ] [ -t ] [ -l ] [ -v ] [ -i device ]

OPTIONS

       -b dump bytes in columns

       -c n set snapcols for byte printing with -b option

       -d prints the time difference between the current and the previous frame

       -x dump frame (bytes and ascii)

       -s n set snaplen for -b and -x option

       -t force TTP decoding of unknown connections

       -l set line buffering on output file

       -v verbose

       -i device interface

DESCRIPTION

       irdadump is a tool for monitoring the IrDA traffic on one or more links. Just write "make" to compile the
       program. When you run the program, you should be able to see the IrDA traffic (if any).

       One advantage of implementing IrDA device drivers as network device drivers is that you should be able to
       attach  sniffers  to  the  device (or actually the packet type). That way, it is possible to use a really
       handy utility called irdadump (instead of tcpdump). This  will  make  debugging  MUCH  easier.  Linux-2.2
       implements the BPF (Berkeley Packet Filter), so its possible to filter out exactly the frames you want to
       see.  You may use hostname to separate different machines names.  Or grep to filter the output, too.

       irdadump must be run as root or installed setuid root, as it requires root privileges.

EXAMPLES

       The output should look something like this:

       / # ./irdadump
       20:11:45.412199 xid:cmd 0x0015c23b > 0xffffffff S=6 s=0
       20:11:45.492137 xid:cmd 0x0015c23b > 0xffffffff S=6 s=1
       20:11:45.572137 xid:cmd 0x0015c23b > 0xffffffff S=6 s=2
       20:11:45.652208 xid:cmd 0x0015c23b > 0xffffffff S=6 s=3
       20:11:45.732137 xid:cmd 0x0015c23b > 0xffffffff S=6 s=4
       20:11:45.812137 xid:cmd 0x0015c23b > 0xffffffff S=6 s=5
       20:11:45.892175 xid:cmd 0x0015c23b > 0xffffffff S=6 s=255 Linux
       20:11:45.902362 xid:rsp 0xf7be8388 < 0x0015c23b S=6 s=5 ACTiSYS IR100M
       20:11:48.412197 xid:cmd 0x0015c23b > 0xffffffff S=6 s=0
       20:11:48.492656 xid:cmd 0x0015c23b > 0xffffffff S=6 s=1
       20:11:48.572177 xid:cmd 0x0015c23b > 0xffffffff S=6 s=2
       20:11:48.652169 xid:cmd 0x0015c23b > 0xffffffff S=6 s=3
       20:11:48.732177 xid:cmd 0x0015c23b > 0xffffffff S=6 s=4
       20:11:48.812153 xid:cmd 0x0015c23b > 0xffffffff S=6 s=5
       20:11:48.822371 xid:rsp 0xf7be8388 < 0x0015c23b S=6 s=4 ACTiSYS IR100M

       15 packets received by filter
       Turning  on  the  "-d"  option  will  make irdadump print the time difference between the current and the
       previous frame:

       / # ./irdadump -d
       20:11:18.412475 (0982.06 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=0
       20:11:18.492345 (0079.87 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=1
       20:11:18.572376 (0080.03 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=2
       20:11:18.652979 (0080.60 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=3
       20:11:18.732354 (0079.38 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=4
       20:11:18.755093 (0022.74 ms) xid:rsp 0xf7be8388 < 0x0015c23b S=6 s=3 ACTiSYS IR100M
       20:11:18.812350 (0057.26 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=5
       20:11:18.892518 (0080.17 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=255 Linux
       20:11:21.412486 (2519.97 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=0
       20:11:21.492395 (0079.91 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=1
       20:11:21.572368 (0079.97 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=2
       20:11:21.652405 (0080.04 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=3
       20:11:21.732458 (0080.05 ms) xid:cmd 0x0015c23b > 0xffffffff S=6 s=4
       irdadump must be run as root or installed setuid root, as it requires root privileges.

       irdadump -d -x -s 256 will check the contents of the frames. This should  tell  us  if  the  frames  have
       malformed content, or if the irda stack is doing something wrong.

DIAGNOSTICS

       N.N.

BUGS

       N.N.

SEE ALSO

       irattach(8), irdaping(8), irdadump(8), findchip(8), irpsion5(8), modprobe(8)

       Linux/IrDA          Project          http://irda.sourceforge.net          -*-         Linux/IrDA-Tutorial
       http://www.hpl.hp.com/personal/Jean_Tourrilhes/IrDA/index.html             -*-             Infrared-HOWTO
       http://tuxmobil.org/howtos.html

AUTHOR

       This  manual  page is written by Werner Heuser <wehe@tuxmobil.org>. It is based on the READMEs from irda-
       utils by the Linux/IrDA Project and the Linux/IrDA-Tutorial.

COPYRIGHT

       Copyright (c) 2001 Werner Heuser

       Permission is granted to copy, distribute and/or modify this document under the terms  of  the  GNU  Free
       Documentation License (GFDL), Version 1.1 or any later version published by the Free Software Foundation;
       with no Invariant Sections, no Front-Cover Texts and no Back-Cover Texts.

                                                  03 July 2006                                       IRDADUMP(8)