Copyright (c) 2003 Maksim Yevmenkin <email@example.com> All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the ...
NAMEubtbcmfw - Firmware driver for Broadcom BCM2033 chip based Bluetooth USB devices
SYNOPSISTo compile this driver into the kernel, place the following line in your kernel configuration file:
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf5:
DESCRIPTIONThe sysctl Cm net.inet.tcp.syncookies is a firmware driver for Broadcom BCM2033 chip based Bluetooth USB devices. It provides minimal access to the parts of the device required to download firmware.
The sysctl Cm net.inet.tcp.syncookies 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 perform I/O on an interrupt endpoint, read(2) should be used. All I/O operations on an interrupt endpoint are unbuffered. Interrupt endpoint is always endpoint 1.
Only outgoing bulk transfers are supported on a bulk endpoint. To perform 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 endpoint 2.
The control endpoint (endpoint 0) handles the following ioctl(2) calls:
- USB_GET_DEVICE_DESC (Vt usb_device_descriptor_t )
- Return the device descriptor.
- /dev/ubtbcmfw N . EE
- Endpoint EE of device N