hcitool is used to configure Bluetooth connections and send some spe‐
cial command to Bluetooth devices. If no command is given, or if the
option -h is used, hcitool prints some usage information and exits.
-h Gives a list of possible commands
-i
The command is applied to device hciX , which must be the name
of an installed Bluetooth device. If not specified, the command
will be sent to the first available Bluetooth device.
dev Display local devices
inq Inquire remote devices. For each discovered device, Bluetooth
device address, clock offset and class are printed.
scan Inquire remote devices. For each discovered device, device name
are printed.
name
Print device name of remote device with Bluetooth address
bdaddr.
info
Print device name, version and supported features of remote de‐
vice with Bluetooth address bdaddr.
spinq Start periodic inquiry process. No inquiry results are printed.
epinq Exit periodic inquiry process.
cmd [parameters]
Submit an arbitrary HCI command to local device. ogf, ocf and
parameters are hexadecimal bytes.
con Display active baseband connections
cc [--role=m|s] [--pkt-type=]
Create baseband connection to remote device with Bluetooth ad‐
dress bdaddr. Option --pkt-type specifies a list of allowed
packet types. is a comma-separated list of packet
types, where the possible packet types are DM1, DM3, DM5, DH1,
DH3, DH5, HV1, HV2, HV3. Default is to allow all packet types.
Option --role can have value m (do not allow role switch, stay
master) or s (allow role switch, become slave if the peer asks
to become master). Default is m.
dc [reason]
Delete baseband connection from remote device with Bluetooth ad‐
dress bdaddr. The reason can be one of the Bluetooth HCI error
codes. Default is 19 for user ended connections. The value must
be given in decimal.
sr
Switch role for the baseband connection from the remote device
to master or slave.
cpt
Change packet types for baseband connection to device with Blue‐
tooth address bdaddr. packet types is a comma-separated list of
packet types, where the possible packet types are DM1, DM3, DM5,
DH1, DH3, DH5, HV1, HV2, HV3.
rssi
Display received signal strength information for the connection
to the device with Bluetooth address bdaddr.
lq
Display link quality for the connection to the device with Blue‐
tooth address bdaddr.
tpl [type]
Display transmit power level for the connection to the device
with Bluetooth address bdaddr. The type can be 0 for the cur‐
rent transmit power level (which is default) or 1 for the maxi‐
mum transmit power level.
afh
Display AFH channel map for the connection to the device with
Bluetooth address bdaddr.
lp [value]
With no value, displays link policy settings for the connection
to the device with Bluetooth address bdaddr. If value is given,
sets the link policy settings for that connection to value.
Possible values are RSWITCH, HOLD, SNIFF and PARK.
lst [value]
With no value, displays link supervision timeout for the connec‐
tion to the device with Bluetooth address bdaddr. If value is
given, sets the link supervision timeout for that connection to
value slots, or to infinite if value is 0.
auth
Request authentication for the device with Bluetooth address
bdaddr.
enc [encrypt enable]
Enable or disable the encryption for the device with Bluetooth
address bdaddr.
key
Change the connection link key for the device with Bluetooth ad‐
dress bdaddr.
clkoff
Read the clock offset for the device with Bluetooth address
bdaddr.
clock [bdaddr] [which clock]
Read the clock for the device with Bluetooth address bdaddr.
The clock can be 0 for the local clock or 1 for the piconet
clock (which is default).
lescan [--privacy] [--passive] [--whitelist] [--discovery=g|l] [--du‐
plicates]
Start LE scan
leinfo [--static] [--random]
Get LE remote information
lewladd [--random]
Add device to LE White List
lewlrm
Remove device from LE White List
lewlsz Read size of LE White List
lewlclr
Clear LE White List
lerladd [--local irk] [--peer irk] [--random]
Add device to LE Resolving List
lerlrm
Remove device from LE Resolving List
lerlclr
Clear LE Resolving List
lerlsz Read size of LE Resolving List
lerlon Enable LE Address Resolution
lerloff
Disable LE Address Resolution
lecc [--static] [--random] | [--whitelist]
Create a LE Connection
ledc [reason]
Disconnect a LE Connection
lecup
LE Connection Update
