Command Section
NG_BT3C(4)             FreeBSD Kernel Interfaces Manual             NG_BT3C(4)

     ng_bt3c - Netgraph node type that is also a 3Com Bluetooth PC card driver

     #include <sys/types.h>
     #include <netgraph/bluetooth/include/ng_bt3c.h>

     The btccc node type is both a persistent Netgraph node type and a driver
     for the 3Com Bluetooth PC card (3CRWB6096-HP).  It implements a Bluetooth
     HCI UART transport layer as per chapter H4 of the Bluetooth Specification
     Book v1.1.  A new node is created when the card is plugged.

     In order to use the card one MUST download the firmware first.  Due to
     copyright issues the firmware cannot be provided with this driver.  The
     firmware can be obtained from the Windows driver package that can be
     downloaded from the 3Com web site at no charge.  The firmware name is
     BT3CPCC.BIN.  To load the firmware into the card, use bt3cfw(8).  I am
     using the original firmware that came with the card on CD-ROM.

           MD5 (BT3CPCC.BIN) = 36170fda56ea9fdbf1702c966f8a97f1

     The node has a single hook called hook.  Incoming bytes received on the
     device are re-assembled into HCI frames (according to the length).  Full
     HCI frames are sent out on the hook.  HCI frames received on hook are
     transmitted out.  No modification to the data is performed in either

     The ng_bt3c driver provides support for the 3Com/HP 3CRWB6096-A PCCARD
     bluetooth adapter.

     This node type supports the following hooks:

     hook      single HCI frame contained in single mbuf structure.

     This node type supports the generic control messages, plus the following:

     NGM_BT3C_NODE_GET_STATE (get_state)
          Returns the current receiving state for the node.

     NGM_BT3C_NODE_SET_DEBUG (set_debug)
          This command takes an integer argument and sets the current debug
          level for the node.

     NGM_BT3C_NODE_GET_DEBUG (get_debug)
          Returns an integer containing the current debug level for the node.

     NGM_BT3C_NODE_GET_QLEN (get_qlen)
          This command takes a parameter that specifies queue number and
          returns the current length of the queue for the node.

     NGM_BT3C_NODE_SET_QLEN (set_qlen)
          This command takes two parameters that specify the queue number and
          the maximum length of the queue and sets the maximum length of the
          queue for the node.

     NGM_BT3C_NODE_GET_STAT (get_stat)
          Returns various statistic information for the node, such as: number
          of bytes (frames) sent, number of bytes (frames) received and number
          of input (output) errors.

     NGM_BT3C_NODE_RESET_STAT (reset_stat)
          Reset all statistic counters to zero.

          Download card firmware.

     This node shuts down when the corresponding card is un-plugged.

     cardbus(4), netgraph(4), pccbb(4), pcic(4), pccard.conf(5), bt3cfw(8),

     The btccc node type was implemented in FreeBSD 5.0.

     Maksim Yevmenkin <m_[email protected]>

     The driver is based on information obtained from
     Jose Orlando Pereira <[email protected]> and disassembled the W2K driver.

FreeBSD 11.1-RELEASE-p4        December 17, 2004       FreeBSD 11.1-RELEASE-p4
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