I'm using Linux 3.14.14-gentoo with BT_ATH3K enabled. I've downloaded the latest linux-firmware from Portage (20131230), and bluez-5.21-r1.My Bluetooth device is an AR3012 according to lsusb:Bus 003 Device 003: ID 0cf3:3004 Atheros Communications, Inc.I'd give you my lsusb -v, but it chokes there for some reason. Here is the card's entry:Bus 003 Device 003: ID 0cf3:3004 Atheros Communications, Inc. lsusb: gconv.c:74: __gconv: Assertion `outbuf != ((void *)0) && *outbuf != ((void *)0)' failed.lsusb exits after that. Anyone know what's going on there?Anyway, my Bluetooth device wasn't being detected after setting up all of the above. Relevant information:[vinny@gentoo ~]$ sudo rfkill list0: phy0: Wireless LAN    Soft blocked: no    Hard blocked: no[vinny@gentoo ~]$ hcitool devDevices:On bootup, I could tell that the ath3k drivers weren't loading properly.Here's some Bluetooth output early on in dmesg:[    0.228135] Bluetooth: Core ver 2.18[    0.228163] Bluetooth: HCI device and connection manager initialized[    0.228166] Bluetooth: HCI socket layer initialized[    0.228169] Bluetooth: L2CAP socket layer initialized[    0.228175] Bluetooth: SCO socket layer initialized[    3.018728] Bluetooth: RFCOMM TTY layer initialized[    3.019511] Bluetooth: RFCOMM socket layer initialized[    3.020285] Bluetooth: RFCOMM ver 1.11[    3.021051] Bluetooth: BNEP (Ethernet Emulation) ver 1.3[    3.021818] Bluetooth: BNEP filters: protocol multicast[    3.022581] Bluetooth: BNEP socket layer initialized[    3.023344] Bluetooth: HIDP (Human Interface Emulation) ver 1.2[    3.024111] Bluetooth: HIDP socket layer initializedBootup goes smoothly up until right after loading the touchpad, where it would hang:[    7.307114] input: FSPPS/2 Sentelic FingerSensingPad as /devices/platform/i8042/serio2/input/input13After about a minute, the following error would display and the system would resume booting as normal.[   64.440637] Bluetooth: Patch file not found ar3k/AthrBT_0x11020000.dfu[   64.443594] Bluetooth: Loading patch file failed[   64.446465] ath3k: probe of 3-4:1.0 failed with error -2And this is the problem that I am still having, except that last night when I was messing around with it it magically started working. I ran an rfkill list and there it was, hci0! hcitool also showed the device, so I was good to go, I went into bluetoothctl and paired my mouse, added a udev rule to get everything running at boot, the works. I rebooted my computer a couple times and it worked like a charm, it didn't hang at boot, so I guess it got the firmware to load.This morning I woke up and my laptop had unplugged and the battery had died, I booted back up, and sure enough, hang at the boot screen and the same error as before (or at least a similar one, I don't remember if I was missing the same firmware file originally or if something else was causing the module not to load). hci0 is suddenly nowhere to be found again.I don't know if it was the fact that the computer completely shut down (I had only been rebooting it) that caused the physical device to deactivate, but I don't see a physical switch anywhere on my computer (Sager NP8298 built on Clevo P177SM-A) for Bluetooth, no keyboard toggle either.Any ideas on how to get the computer to see the device? Everything worked beautifully when it was working.Edit: Some ls output[vinny@gentoo ~]$ ls -l /lib/firmware | grep ar3kdrwxr-xr-x 7 root root    4096 Sep 18 15:00 ar3k[vinny@gentoo ~]$ ls -l /lib/firmware | grep ath3k-rw-r--r-- 1 root root  246804 Sep 18 14:16 ath3k-1.fw[vinny@gentoo ~]$ cd /lib/firmware/ar3k && ls1020200    AthrBT_0x01020001.dfu  AthrBT_0x41020000.dfu    ramps_0x01020201_40.dfu1020201    AthrBT_0x01020200.dfu  ramps_0x01020001_26.dfu  ramps_0x11020000_40.dfu30000      AthrBT_0x01020201.dfu  ramps_0x01020200_26.dfu  ramps_0x31010000_40.dfu30101      AthrBT_0x11020000.dfu  ramps_0x01020200_40.dfu  ramps_0x41020000_40.dfu30101coex  AthrBT_0x31010000.dfu  ramps_0x01020201_26.dfu
Bluetooth troubles with AR3012 on Gentoo
drivers;gentoo;bluetooth;firmware