LIST of HCI cmd

HCI Commands

Link Control Commands (OGF = 0x01) No Command Name OpCode Description 1 Inquiry 0x0001 Command used to enter Inquiry mode where it discovers other Bluetooth devices. 2 Inquiry_Cancel 0x0002 Command to cancel the Inquiry mode in which the Bluetooth device is in. 3 Periodic_Inquiry_Mode 0x0003 Command to set the device to enter Inquiry modes periodically according to the time interval set. 4 Exit_Periodic_Inquiry_Mode 0x0004 Command to exit the periodic Inquiry mode 5 Create_Connection 0x0005 Command to create an ACL connection to the device specified by the BD_ADDR in the parameters. 6 Disconnect 0x0006 Command to terminate the existing connection to a device 7 Add_SCO_Connection 0x0007 Create an SCO connection defined by the connection handle parameters. 8 Accept_Connection_Request 0x0009 Command to accept a new connection request 9 Reject_Connection_Request 0x000A Command to reject a new connection request 10 Link_Key_Request_Reply 0x000B Reply command to a link key request event sent from controller to the host 11 Link_Key_Request_Negative_Reply 0x000C Reply command to a link key request event from the controller to the host if there is no link key associated with the connection. 12 PIN_Code_Request_Reply 0x000D Reply command to a PIN code request event sent from a controller to the host. 13 PIN_Code_Request_Negative_Reply 0x000E Reply command to a PIN code request event sent from the controller to the host if there is no PIN associated with the connection. 14 Change_Connection_Packet_Type 0x000F Command to change the type of packets to be sent for an existing connection. 15 Authentication_Requested 0x0011 Command to establish authentication between two devices specified by the connection handle. 16 Set_Connection_Encryption 0x0013 Command to enable or disable the link level encryption. 17 Change_Connection_Link_Key 0x0015 Command to force the change of a link key to a new one between two connected devices. 18 Master_Link_Key 0x0017 Command to force two devices to use the master's link key temporarily. 19 Remote_Name_Request 0x0019 Command to determine the user friendly name of the connected device. 20 Read_Remote_Supported_Features 0x001B Command to determine the features supported by the connected device. 21 Read_Remote_Version_Information 0x001D Command to determine the version information of the connected device. 22 Read_Clock_Offset 0x001F Command to read the clock offset of the remote device. HCI Policy Command (OGF=0x02) 1 Hold_Mode 0x0001 Command to place the current or remote device into the Hold mode state. 2 Sniff_Mode 0x0003 Command to place the current or remote device into the Sniff mode state. 3 Exit_Sniff_Mode 0x0004 Command to exit the current or remote device from the Sniff mode state. 4 Park_Mode 0x0005 Command to place the current or remote device into the Park mode state. 5 Exit_Park_Mode 0x0006 Command to exit the current or remote device from the Park mode state. 6 QoS_Setup 0x0007 Command to setup the Quality of Service parameters of the device. 7 Role_Discovery 0x0009 Command to determine the role of the device for a particular connection. 8 Switch_Role 0x000B Command to allow the device to switch roles for a particular connection. 9 Read_Link_Policy_Settings 0x000C Command to determine the link policy that the LM can use to establish connections. 10 Write_Link_Policy_Settings 0x000D Command to set the link policy that the LM can use for a particular connection. Host Controller and Baseband Commands (OGF=0x03) 1 Set_Event_Mask 0x0001 Command to set which events are generated by the HCI for the host. 2 Reset 0x0003 Command to reset the host controller, link manager and the radio module. 3 Set_Event_Filter 0x0005 Command used by host to set the different types of event filters that the host needs to receive. 4 Flush 0x0008 Command used to flush all pending data packets for transmission for a particular connection handle. 5 Read_PIN_Type 0x0009 Command used by host to determine if the link manager assumes that the host requires a variable PIN type or fixed PIN code. PIN is used during pairing. 6 Write_PIN_Type 0x000A Command used by host to write to the host controller on the PIN type supported by the host. 7 Create_New_Unit_Key 0x000B Command used to create a new unit key. 8 Read_Stored_Link_Key 0x000D Command to read the link key stored in the host controller. 9 Write_Stored_Link_Key 0x0011 Command to write the link key to the host controller. 10 Delete_Stored_Link_Key 0x0012 Command to delete a stored link key in the host controller. 11 Change_Local_Name 0x0013 Command to modify the user friendly name of the device. 12 Read_Local_Name 0x0014 Command to read the user friendly name of the device. 13 Read_Connection_Accept_Timeout 0x0015 Command to determine the timeout session before the host denies and rejects a new connection request. 14 Write_Connection_Accept_Timeout 0x0016 Command to set the timeout session before a device can deny or reject a connection request. 15 Read_Page_Timeout 0x0017 Command to read the timeout value where a device will wait for a connection acceptance before sending a connection failure is returned. 16 Write_Page_Timeout 0x0018 Command to write the timeout value where a device will wait for a connection acceptance before sending a connection failure is returned. 17 Read_Scan_Enable 0x0019 Command to read the status of the Scan_Enable configuration. 18 Write_Scan_Enable 0x001A Command to set the status of the Scan_Enable configuration. 19 Read_Page_Scan_Activity 0x001B Command to read the value of the Page_Scan_Interval and Page_Scan_Window configurations. 20 Write_Page_Scan_Activity 0x001C Command to write the value of the Page_Scan_Interval and Page_Scan_Window configurations. 21 Read_Inquiry_Scan_Activity 0x001D Command to read the value of the Inquiry_Scan_Interval and Inquiry_Scan_Window configurations. 22 Write_Inquiry_Scan_Activity 0x001E Command to set the value of the Inquiry_Scan_Interval and Inquiry_Scan_Window configurations. 23 Read_Authentication_Enable 0x001F Command to read the Authentication_Enable parameter. 24 Write_Authentication_Enable 0x0020 Command to set the Authentication_Enable parameter. 25 Read_Encryption_Mode 0x0021 Command to read the Encryption_Mode parameter. 26 Write_Encryption_Mode 0x0022 Command to write the Encryption_Mode parameter. 27 Read_Class_Of_Device 0x0023 Command to read the Class_Of_Device parameter. 28 Write_Class_Of_Device 0x0024 Command to set the Class_Of_Device parameter. 29 Read_Voice_Setting 0x0025 Command to read the Voice_Setting parameter. Used for voice connections. 30 Write_Voice_Setting 0x0026 Command to set the Voice_Setting parameter. Used for voice connections. 31 Read_Automatic_Flush_Timeout 0x0027 Command to read the Flush_Timeout parameter. Used for ACL connections only. 32 Write_Automatic_Flush_Timeout 0x0028 Command to set the Flush_Timeout parameter. Used for ACL connections only. 33 Read_Num_Broadcast_Retransmissions 0x0029 Command to read the number of time a broadcast message is retransmitted. 34 Write_Num_Broadcast_Retransmissions 0x002A Command to set the number of time a broadcast message is retransmitted. 35 Read_Hold_Mode_Activity 0x002B Command to set the Hold_Mode activity to instruct the device to perform an activity during hold mode. 36 Write_Hold_Mode_Activity 0x002C Command to set the Hold_Mode_Activity parameter. 37 Read_Transmit_Power_Level 0x002D Command to read the power level required for transmission for a connection handle. 38 Read_SCO_Flow_Control_Enable 0x002E Command to check the current status of the flow control for the SCO connection. 39 Write_SCO_Flow_Control_Enable 0x002F Command to set the status of the flow control for a connection handle. 40 Set_Host_Controller_To_Host_Flow_Control 0x0031 Command to set the flow control from the host controller to host in on or off state. 41 Host_Buffer_Size 0x0033 Command set by host to inform the host controller of the buffer size of the host for ACL and SCO connections. 42 Host_Number_Of_Completed_Packets 0x0035 Command set from host to host controller when it is ready to receive more data packets. 43 Read_Link_Supervision_Timeout 0x0036 Command to read the timeout for monitoring link losses. 44 Write_Link_Supervision_Timeout 0x0037 Command to set the timeout for monitoring link losses. 45 Read_Number_Of_Supported_IAC 0x0038 Command to read the number of IACs that the device can listen on during Inquiry access. 46 Read_Current_IAC_LAP 0x0039 Command to read the LAP for the current IAC. 47 Write_Current_IAC_LAP 0x003A Command to set the LAP for the current IAC. 48 Read_Page_Scan_Period_Mode 0x003B Command to read the timeout session of a page scan. 49 Write_Page_Scan_Period_Mode 0x003C Command to set the timeout session of a page scan. 50 Read_Page_Scan_Mode 0x003D Command to read the default Page scan mode. 51 Write_Page_Scan_Mode 0x003E Command to set the default page scan mode.

HCI Events

No Command Name Event Code Description 1 Inquiry_Complete_Event 0x01 Indicates the Inquiry has finished. 2 Inquiry_Result_Event 0x02 Indicates that Bluetooth device(s) have responded for the inquiry. 3 Connection_Complete_Event 0x03 Indicates to both hosts that the new connection has been formed. 4 Connection_Request_Event 0x04 Indicates that a new connection is trying to be established. 5 Disconnection_Complete_Event 0x05 Occurs when a connection has been disconnected. 6 Authentication_Complete_Event 0x06 Occurs when an authentication has been completed. 7 Remote_Name_Request_Complete_Event 0x07 Indicates that the request for the remote name has been completed. 8 Encryption_Change_Event 0x08 Indicates that a change in the encryption has been completed. 9 Change_Connection_Link_Key_Complete_Event 0x09 Indicates that the change in the link key has been completed. 10 Master_Link_Key_Complete_Event 0x0A Indicates that the change in the temporary link key or semi permanent link key on the master device is complete. 11 Read_Remote_Supported_Features_Complete_Event 0x0B Indicates that the reading of the supported features on the remote device is complete. 12 Read_Remote_Version_Complete_Event 0x0C Indicates that the version number on the remote device has been read and completed. 13 Q0S_Setup_Complete_Event 0x0D Indicates that the Quality of Service setup has been complete. 14 Command_Complete_Event 0x0E Used by controller to send status and event parameters to the host for the particular command. 15 Command_Status_Event 0x0F Indicates that the command has been received and is being processed in the host controller. 16 Hardware_Error_Event 0x10 Indicates a hardware failure of the Bluetooth device. 17 Flush_Occured_event 0x11 Indicates that the data has been flushed for a particular connection. 18 Role_Change_Event 0x12 Indicates that the current bluetooth role for a connection has been changed. 19 Number_Of_Completed_Packets_Event 0x13 Indicates to the host the number of data packets sent compared to the last time the same event was sent. 20 Mode_Change_Event 0x14 Indicates the change in mode from hold, sniff, park or active to another mode. 21 Return_Link_Keys_Event 0x15 Used to return stored link keys after a Read_Stored_Link_Key command was issued. 22 PIN_Code_Request_Event 0x16 Indicates the a PIN code is required for a new connection. 23 Link_Key_Request_Event 0x17 Indicates that a link key is required for the connection. 24 Link_Key_Notification_Event 0x18 Indicates to the host that a new link key has been created. 25 Loopback_Command_Event 0x19 Indicates that command sent from the host will be looped back. 26 Data_Buffer_Overflow_Event 0x1A Indicates that the data buffers on the host has overflowed. 27 Max_Slots_Change_Event 0x1B Informs the host when the LMP_Max_Slots parameter changes. 28 Read_Clock_Offset_Complete_Event 0x1C Indicates the completion of reading the clock offset information. 29 Connection_Packet_Type_Changed_Event 0x1D Indicate the completion of the packet type change for a connection. 30 QoS_Violation_Event 0x1E Indicates that the link manager is unable to provide the required Quality of Service. 31 Page_Scan_Mode_Change_Event 0x1F Indicates that the remote device has successfully changed the Page Scan mode. 32 Page_Scan_Repetition_Mode_Change_Event 0x20 Indicates that the remote device has successfully changed the Page Scan Repetition mode.

HCI Error Codes

No Command Name Error Code 1 Unknown HCI Command 0x01 2 No Connection 0x02 3 Hardware Failure 0x03 4 Page Timeout 0x04 5 Authentication Failure 0x05 6 Key Missing 0x06 7 Memory Full 0x07 8 Connection Timeout 0x08 9 Max Number Of Connections 0x09 10 Max Number Of SCO Connections To A Device 0x0A 11 ACL Connection Already Exists 0x0B 12 Command Disallowed 0x0C 13 Host Rejected Due To Limited Resources 0x0D 14 Host Rejected Due To Security Reasons 0x0E 15 Host Rejected Due To A Remote Device Only A Personal Device 0x0F 16 Host Timeout 0x1 17 Unsupported Feature Or Parameter Value 0x11 18 Invalid HCI Command Parameters 0x12 19 Other End Terminated Connection: User Ended Connection 0x13 20 Other End Terminated Connection: Low Resources 0x14 21 Other End Terminated Connection: About To Power Off 0x15 22 Connection Terminated By Local Host 0x16 23 Repeated Attempts 0x17 24 Pairing Not Allowed 0x18 25 Unknown LMP PDU 0x19 26 Unsupported Remote Feature 0x1A 27 SCO Offset Rejected 0x1B 28 SCO Interval Rejected 0x1C 29 SCO Air Mode Rejected 0x1D 30 Invalid LMP Parameters 0x1E 31 Unspecified Error 0x1F 32 Unsupported LMP Parameter 0x20 33 Role Change Not Allowed 0x21 34 LMP Response Timeout 0x22 35 LMP Error Transaction Collision 0x23 36 LMP PDU Not Allowed 0x24 37 Encryption Mode Not Acceptable 0x25 38 Unit Key Used 0x26 39 QoS Not Supported 0x27 40 Instant Passed 0x28 41 Pairing With Unit Key Not Supported 0x29 42 Reserved For Future Use 0x2A-0xFF