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[Pilot6 <1394368@xxxxxxxxxxxxxxxxxx>]

Let's wait till it gets into mainline kernel, it may be soon to 4.1.
Then you will test it and then I will report it to kernel maintainers if
it persists.

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https://bugs.launchpad.net/bugs/1394368

Title:
  Bluetooth with AR9462 doesn't work (New ID /Firmware)

Status in linux package in Ubuntu:
  In Progress
Status in linux-firmware package in Ubuntu:
  Confirmed

Bug description:
  This is (kind of) a duplicate of:
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1024884
  (please read)

  I can't use Bluetooth with my AR9462 WLAN/BT-Combo.
  In the link above, it has been fixed, but not for my Adapter ID/Firmware:

  System:
  Ubuntu 14.10 utopic 64bit - 3.16.0-24-generic x86_64

  lspci -nnk
  02:00.0 Network controller [0280]: Qualcomm Atheros AR9462
  Wireless Network Adapter [168c:0034] (rev 01)
   Subsystem: Lite-On Communications Inc Device [11ad:0802]
   Kernel driver in use: ath9k

  lsusb (identified Bluetooth Device)
  Bus 002 Device 003: ID 04ca:300d Lite-On Technology Corp.

  ath9k.conf
  options ath9k btcoex_enable=1

  The "04ca:300d" ID is not in the Kernel, so i added it via dkms.

  I took ath3k.c and btusb.c out of the 3.16.0-24-generic source files
  and changed them:

  diff -urN ./linux-3.16.0/drivers/bluetooth/ath3k.c /usr/src/ar9462-1.5.1/ath3k.c
  --- ./linux-3.16.0/drivers/bluetooth/ath3k.c	2014-08-04 00:25:02.000000000 +0200
  +++ /usr/src/ar9462-1.5.1/ath3k.c	2014-11-19 21:12:46.646265890 +0100
  @@ -85,6 +85,7 @@
    { USB_DEVICE(0x04CA, 0x3007) },
    { USB_DEVICE(0x04CA, 0x3008) },
    { USB_DEVICE(0x04CA, 0x300b) },
  +	{ USB_DEVICE(0x04CA, 0x300d) },
    { USB_DEVICE(0x0930, 0x0219) },
    { USB_DEVICE(0x0930, 0x0220) },
    { USB_DEVICE(0x0b05, 0x17d0) },
  @@ -134,6 +135,7 @@
    { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
    { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
    { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
  +	{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
    { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
    { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
    { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },

  diff -urN ./linux-3.16.0/drivers/bluetooth/btusb.c /usr/src/ar9462-1.5.1/btusb.c
  --- ./linux-3.16.0/drivers/bluetooth/btusb.c	2014-08-04 00:25:02.000000000 +0200
  +++ /usr/src/ar9462-1.5.1/btusb.c	2014-11-19 21:12:46.646265890 +0100
  @@ -157,6 +157,7 @@
    { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
    { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
    { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
  +	{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
    { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
    { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
    { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },

  sudo dkms add -m ar9462 -v 1.5.1
  sudo dkms build -m ar9462 -v 1.5.1
  sudo dkms install -m ar9462 -v 1.5.1

  (DKMS package in the same style/versioning as in the bug report above)

  dkms status
  ar9462, 1.5.1, 3.16.0-24-generic, x86_64: installed

  Now the new output:

  dmesg | egrep 'ath3|ar3|Bluet'
  [    2.787819] Bluetooth: Core ver 2.19
  [    2.787833] Bluetooth: HCI device and connection manager initialized
  [    2.787839] Bluetooth: HCI socket layer initialized
  [    2.787842] Bluetooth: L2CAP socket layer initialized
  [    2.787848] Bluetooth: SCO socket layer initialized
  [    2.793551] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
  [    2.793554] Bluetooth: BNEP filters: protocol multicast
  [    2.793561] Bluetooth: BNEP socket layer initialized
  [    3.130779] Bluetooth: Patch file not found ar3k/AthrBT_0x11020100.dfu
  [    3.130783] Bluetooth: Loading patch file failed
  [    3.130788] ath3k: probe of 2-5:1.0 failed with error -12
  [    3.130823] usbcore: registered new interface driver ath3k
  [    9.776503] Bluetooth: RFCOMM TTY layer initialized
  [    9.776512] Bluetooth: RFCOMM socket layer initialized
  [    9.776517] Bluetooth: RFCOMM ver 1.11

  My patch works, but just like in the bug report above, a Firmware file is missing:
  AthrBT_0x11020100.dfu

  I found it neither in linux-firmware (http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/ar3k)
  nor elsewhere.

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