/share/man/man4/ubtbcmfw.4

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  1. .\" Copyright (c) 2003 Maksim Yevmenkin <m_evmenkin@yahoo.com>
  2. .\" All rights reserved.
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  25. .\" $Id: ubtbcmfw.4,v 1.3 2003/05/21 19:37:35 max Exp $
  26. .\" $FreeBSD$
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  28. .Dd November 22, 2006
  29. .Dt UBTBCMFW 4
  30. .Os
  31. .Sh NAME
  32. .Nm ubtbcmfw
  33. .Nd Firmware driver for Broadcom BCM2033 chip based Bluetooth USB devices
  34. .Sh SYNOPSIS
  35. To compile this driver into the kernel,
  36. place the following line in your
  37. kernel configuration file:
  38. .Bd -ragged -offset indent
  39. .Cd "device ubtbcmfw"
  40. .Ed
  41. .Pp
  42. Alternatively, to load the driver as a
  43. module at boot time, place the following line in
  44. .Xr loader.conf 5 :
  45. .Bd -literal -offset indent
  46. ubtbcmfw_load="YES"
  47. .Ed
  48. .Sh DESCRIPTION
  49. The
  50. .Nm
  51. is a firmware driver for Broadcom BCM2033 chip based Bluetooth USB devices.
  52. It provides minimal access to the parts of the device required to download
  53. firmware.
  54. .Pp
  55. The
  56. .Nm
  57. driver creates three fixed endpoint device nodes.
  58. .Pp
  59. The control transfers can only happen on the control endpoint which
  60. is always endpoint 0.
  61. Control requests are issued by
  62. .Xr ioctl 2
  63. calls.
  64. .Pp
  65. Only incoming transfers are supported on an interrupt endpoint.
  66. To perform I/O on an interrupt endpoint,
  67. .Xr read 2
  68. should be used.
  69. All I/O operations on an interrupt endpoint are unbuffered.
  70. Interrupt endpoint is always endpoint 1.
  71. .Pp
  72. Only outgoing bulk transfers are supported on a bulk endpoint.
  73. To perform I/O on a bulk endpoint,
  74. .Xr write 2
  75. should be used.
  76. All I/O operations on a bulk endpoint are unbuffered.
  77. Outgoing bulk endpoint is always endpoint 2.
  78. .Pp
  79. The control endpoint (endpoint 0) handles the following
  80. .Xr ioctl 2
  81. calls:
  82. .Bl -tag -width indent
  83. .It Dv USB_GET_DEVICE_DESC Pq Vt usb_device_descriptor_t
  84. Return the device descriptor.
  85. .El
  86. .Sh FILES
  87. .Bl -tag -width ".Pa /dev/ubtbcmfw Ns Ar N Ns Pa \&. Ns Ar EE" -compact
  88. .It Pa /dev/ubtbcmfw Ns Ar N Ns Pa \&. Ns Ar EE
  89. Endpoint
  90. .Ar EE
  91. of device
  92. .Ar N .
  93. .El
  94. .Sh SEE ALSO
  95. .Xr ng_ubt 4 ,
  96. .Xr ugen 4 ,
  97. .Xr usb 4 ,
  98. .Xr bcmfw 8
  99. .Sh HISTORY
  100. The
  101. .Nm
  102. driver was implemented in
  103. .Fx 5.0 .
  104. .Sh AUTHORS
  105. .An Maksim Yevmenkin Aq m_evmenkin@yahoo.com
  106. .Sh BUGS
  107. Most likely.
  108. Please report if found.