kernel-packages team mailing list archive

[Erotavlas <erotavlas_turbo@xxxxxxxxx>]

Hi,
here http://plugable.com/2014/06/23/plugable-usb-bluetooth-adapter-solving-hfphsp-profile-issues-on-linux there is a solutions for properly reading the firmware module for Broadcom BCM20702A0 chip in the kernel for version 3.18+.
In my case it works well. Let me know if this solve the problem.

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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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