UBTBCMFW(4) BSD Kernel Interfaces Manual UBTBCMFW(4)NAME
ubtbcmfw — Firmware driver for Broadcom BCM2033 chip based Bluetooth USB
devices
SYNOPSIS
To compile this driver into the kernel, place the following line in your
kernel configuration file:
device ubtbcmfw
Alternatively, to load the driver as a module at boot time, place the
following line in loader.conf(5):
ubtbcmfw_load="YES"
DESCRIPTION
The ubtbcmfw is a firmware driver for Broadcom BCM2033 chip based Blue‐
tooth USB devices. It provides minimal access to the parts of the device
required to download firmware.
The ubtbcmfw driver creates three fixed endpoint device nodes.
The control transfers can only happen on the control endpoint which is
always endpoint 0. Control requests are issued by ioctl(2) calls.
Only incoming transfers are supported on an interrupt endpoint. To per‐
form I/O on an interrupt endpoint, read(2) should be used. All I/O oper‐
ations on an interrupt endpoint are unbuffered. Interrupt endpoint is
always endpoint 1.
Only outgoing bulk transfers are supported on a bulk endpoint. To per‐
form I/O on a bulk endpoint, write(2) should be used. All I/O operations
on a bulk endpoint are unbuffered. Outgoing bulk endpoint is always end‐
point 2.
The control endpoint (endpoint 0) handles the following ioctl(2) calls:
USB_GET_DEVICE_DESC (usb_device_descriptor_t)
Return the device descriptor.
FILES
/dev/ubtbcmfwN.EE Endpoint EE of device N.
SEE ALSOng_ubt(4), ugen(4), usb(4), bcmfw(8)HISTORY
The ubtbcmfw driver was implemented in FreeBSD 5.0.
AUTHORS
Maksim Yevmenkin ⟨m_evmenkin@yahoo.com⟩
BUGS
Most likely. Please report if found.
BSD November 22, 2006 BSD
