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[Bug 1065400] Re: Support for loading Broadcom bluetooth firmware

 

Apparently in 14.10 the .hcd file needs to be /lib/firmware/brcm.
Here is the .hcd file for the IOGEAR GBU521 (0a5c:21e8).  Place it in /lib/firmware/brcm/BCM920702 Bluetooth 4.0-0a5c-21e8.hcd (Yes including the spaces in the file name)

modprobe -r btusb
modprobe btusb

Looks like it is successfully loading the firmware
[513973.825046] Bluetooth: hci0: BCM: patching hci_ver=06 hci_rev=153a lmp_ver=06 lmp_subver=220e
[513974.598398] Bluetooth: hci0: BCM: firmware hci_ver=06 hci_rev=153a lmp_ver=06 lmp_subver=220e

If you have a different model you can find what the filename should be from syslog 
[513871.502139] Bluetooth: hci0: BCM: patch brcm/BCM920702 Bluetooth 4.0-0a5c-21e8.hcd not found

Note: the attached .hcd only works for the IOGEAR GBU521. You'll have to
find and convert the .hex file for your specific model.

** Attachment added: "BCM920702 Bluetooth 4.0-0a5c-21e8.hcd"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1065400/+attachment/4292669/+files/BCM920702%20Bluetooth%204.0-0a5c-21e8.hcd

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https://bugs.launchpad.net/bugs/1065400

Title:
  Support for loading Broadcom bluetooth firmware

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Precise:
  Fix Released
Status in linux source package in Quantal:
  Fix Released
Status in linux source package in Raring:
  Fix Released
Status in linux source package in Saucy:
  Fix Released

Bug description:
  Broadcom bluetooth chips require a tool called patchram uploader [1]
  to load firmware. This applies to at least BCM20702 and BCM43142.
  Although some of the devices have an OTPROM that contains required
  firmware, but it is found that these devices would not have HFP/HSP
  support unless a upgraded firmware is loaded via patchram uploader.

  This tool requires hci device to do the firmware loading, but this may
  cause some race condition between patchram tool and bluetoothd or
  something that also works on hci interface.

  Also it needs some hooks to make firmware loads after bootup, s3,  s4,
  rfkill, and device hotplug events. Implement this loader in kernel
  module would make things more easier.

  [1] http://marc.info/?l=linux-bluetooth&m=132039175324993&w=2

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