I had this same issue with an IOGear USB Bluetooth 4.0 adapter: Bus 006 Device 019: ID 0a5c:21e8 Broadcom Corp.
I built and installed the brcm_patchram_plus_usb tool, used hex2hcd to convert the firmware (extracted from the driver CD included with the adapter - first time I've used one of those in awhile), and it made my HSP profile Bluetooth headset work (a Plantronics Discovery 975) where I only got silence before. Guessing this device's ID needs to be added to the kernel as well. I did drop the firmware file into my /lib/firmware directory as fw-0a5c_21e8.hcd as well. I'm running Mint 15 (based on raring). -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1065400 Title: Support for loading Broadcom bluetooth firmware Status in “linux” package in Ubuntu: In Progress 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 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1065400/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp