hcidump(8) -- Linux man page

 

NAME

hcidump - Parse HCI data  

SYNOPSIS

hcidump [-h]
hcidump [option [option...]] [filter]

 

DESCRIPTION

hcidump reads raw HCI data coming from and going to a Bluetooth device (which can be specified with the option -i, default is the first available one) and prints to screen commands, events and data in a human-readable form. Optionally, the dump can be written to a file rather than parsed, and the dump file can be parsed in a subsequent moment.  

OPTIONS

-h
Prints usage info and exits
-i <hciX>
Data is read from hciX, which must be the name of an installed Bluetooth device. If not specified, and if -r option is not set, data is read from the first available Bluetooth device.
-s <len>, --snap-len=<len>
Sets max length of processed packets to len.
-p <psm>, --psm=<psm>
Sets default Protocol Service Multiplexer to psm.
-m <compid>, --manufacturer=<compid>
Sets default company id for manufacturer to compid.
-w <file>, --save-dump=<file>
Parse output is not printed to screen, instead data read from device is saved in file file. The saved dump file can be subsequently parsed with option -r.
-r <file>, --read-dump=<file>
Data is not read from a Bluetooth device, but from file file. file is crated with option -w.
-t, --ts
Prepend a time stamp to every packet.
-a, --ascii
For every packet, not only is the packet type displayed, but also all data in ASCII.
-x, --hex
For every packet, not only is the packet type displayed, but also all data in hex.
-X, --ext
For every packet, not only is the packet type displayed, but also all data in hex and ASCII.
-R, --raw
Raw mode: do not display packet type, only data.
-C, --cmtp
Sets the PSM value for the CAPI Message Transport Protocol
-H, --hcrp
Sets the PSM value for the Hardcopy Control Channel
 

FILTERS

filter is a space-separated list of packet categories: available categories are hci, sco, l2cap, rfcomm, sdp, bnep, cmtp, hidp, hcrp, avdtp and capi. If filters are used, only packets belonging to the specified categories are dumped. By default, all packets are dumped.  

AUTHORS

Written by Maxim Krasnyansky <maxk@qualcomm.com> and Marcel Holtmann <marcel@holtmann.org>

man page by Fabrizio Gennari <fabrizio.gennari@philips.com>