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HCIDUMP(1) FreeBSD General Commands Manual HCIDUMP(1)

hcidump
Parse HCI data

hcidump [-h]

hcidump [-aRtx] [-i HCI_node] [-p PSM] [-r file] [-s length] [-w file] [filter]

hcidump reads raw HCI data coming from and going to a Bluetooth device (which can be specified with the option -i, default is all available devices) 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.

For every packet, not only is the packet type displayed, but also all data in ASCII format.
Prints usage info and exits.
HCI_node
Data is read from the specified device. If not specified, and if -r option is not set, data is read from the all available Bluetooth devices.
PSM
Sets default Protocol Service Multiplexer (PSM) to specified value.
Raw mode: do not display packet type, only data.
file
Data is not read from a Bluetooth device, but from the specified file. The file can be created with option -w.
length
Sets max length of processed packets.
Prepend a time stamp to every packet.
file
Parsed output is not printed to screen, instead data read from the device are saved into the specified file. The saved dump file can be subsequently parsed with option -r.
For every packet, not only is the packet type displayed, but also all data in hex format.

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

Maxim Krasnyansky ⟨maxk@qualcomm.com⟩
Fabrizio Gennari ⟨fabrizio.gennari@philips.com⟩
November, 12 2002 FreeBSD 13.1-RELEASE

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