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ng_ubt.4freebsd

Langue: en

Version: 300787 (debian - 07/07/09)

Section: 4 (Pilotes et protocoles réseau)


BSD mandoc

NAME

ng_ubt - Netgraph node type that is also a driver for Bluetooth USB devices

SYNOPSIS

In sys/types.h In netgraph/bluetooth/include/ng_ubt.h

DESCRIPTION

The ubt node type is both a persistent Netgraph node type and a driver for Bluetooth USB devices. It implements a Bluetooth USB transport layer as per chapter H2 of the Bluetooth Specification Book v1.1. A new node is created when a supported USB device is plugged in.

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. The node will add a HCI frame indicator if the device did not send it. HCI frames received on hook are transmitted out. The node will drop the HCI frame indicator unless the device requires it to be present.

HARDWARE

The driver supports all Bluetooth USB devices that conform with the Bluetooth specification v1.1, including:

HOOKS

This node type supports the following hooks:
hook
single HCI frame contained in a single Vt mbuf structure.

CONTROL MESSAGES

This node type supports the generic control messages, plus the following:
NGM_UBT_NODE_GET_DEBUG
Returns an integer containing the current debug level for the node.
NGM_UBT_NODE_SET_DEBUG
This command takes an integer argument and sets the current debug level for the node.
NGM_UBT_NODE_GET_QLEN
This command takes a parameter that specifies the queue number and returns the current maximal length of the queue for the node.
NGM_UBT_NODE_SET_QLEN
This command takes two parameters that specify the queue number and the maximum length of the queue and sets the maximal length of the queue for the node.
NGM_UBT_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_UBT_NODE_RESET_STAT
Reset all statistic counters to zero.

SHUTDOWN

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

SEE ALSO

netgraph(4), ugen(4), usb(4), ngctl(8)

HISTORY

The ubt node type was implemented in Fx 5.0 .

AUTHORS

An Maksim Yevmenkin Aq m_evmenkin@yahoo.com

BUGS

Isochronous USB transfers are broken. This means that the USB device will not be able to transfer SCO data (voice). USB interrupt transfers are implemented as bulk-in transfers (not really a bug).
13:44 Les hommes comme les animaux ont toujours chassé pour se nourrir ou
pour le plaisir
13:45 13:44 tu pourrais me démontrer qu'un loup chasse pour son plaisir ?
13:47 13:45 ben il mange le fruit de sa chasse, ça lui fait plaisir ?
13:48 13:47 manger lui, sans doute, mais chasser non, d'ailleurs il y a
TRES peu d'animaux qui chassent autre chose que ce qu'ils mangent
13:49 13:48 Le chasse-neige par ex.