NAME

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

SYNOPSIS

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

DEPRECATION NOTICE

       This driver is scheduled for removal prior to the release of FreeBSD 13.0

DESCRIPTION

       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 direction.

HARDWARE

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

HOOKS

       This node type supports the following hooks:

       hook  single HCI frame contained in single mbuf structure.

CONTROL MESSAGES

       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.

       NGM_BT3C_NODE_DOWNLOAD_FIRMWARE
            Download card firmware.

SHUTDOWN

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

SEE ALSO

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

HISTORY

       The btccc node type was implemented in FreeBSD 5.0.

AUTHORS

       Maksim Yevmenkin <m_evmenkin@yahoo.com>

BUGS

       The driver is based on information obtained from Jose Orlando Pereira <jop@di.uminho.pt> and disassembled
       the W2K driver.

Debian                                          December 17, 2004                                     NG_BT3C(4)