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NG_BT3C(4)		     Kernel Interfaces Manual		      NG_BT3C(4)

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

SYNOPSIS
     #include <sys/types.h>
     #include <ng_bt3c.h>

DESCRIPTION
     The  BTCCC  node  type is both a persistent Netgraph node type and a driver
     for 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 firmware first. Due to copyright
     issues I will no longer provide firmware with the 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
     firmware info the card use bt3cfw(8).  I'm  using	original  firmware  that
     came with the card on CD-ROM.

	   MD5 (BT3CPCC.BIN) = 36170fda56ea9fdbf1702c966f8a97f1

     For OLDCARD systems the entry in pccard.conf(5) might look like this

	   # 3Com 3CRWB60-A Bluetooth PC Card
	   card "3COM" "3CRWB60-A" "Bluetooth PC Card"
		   config  auto    "btccc" ?
		   insert  /usr/sbin/bt3cfw -n $device -f /etc/BT3CPCC.bin

     Do not forget to load module and SIGHUP pccardd(8).

     The node has a single hook called hook.  Incoming bytes received on the de-
     vice  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  transmit-
     ted out. No modification to the data is performed in either direction.

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
	  Returns current receiving state for the node.

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

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

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

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

     NGM_BT3C_NODE_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 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.

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

SEE ALSO
     cardbus(4), pccbb(4), pcic(4), pccardc(8), pccardd(8), pccard.conf(5), net-
     graph(4), ngctl(8), bt3cfw(8)

HISTORY
     The BTCCC node type was implemented in FreeBSD 5.0.

AUTHORS
     Maksim Yevmenkin <m_evmenkin@yahoo.com>

FreeBSD 5.0			  June 14, 2002 		      NG_BT3C(4)
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