qualcomm atheros ar3012 bluetooth 4.0 coexist

Enter kernel config menu, and change the following settings.Copy existent kernel config as a start.Download and extract L4T kernel sources into your home directory.Sudo apt-get install linux-firmware libncurses5-dev Install the firmware (for ath3k) and dependency (for kernel config menu) packages on your TK1.It could be either over SSH ( ssh ), or GNOME Terminal ( Ctrl-Alt-T) from GUI if you have a monitor plugged in. The following steps are all carried out with a shell on TK1.First make sure you have the latest Linux4Tegra (L4T) 21.4 installed on your Jetson TK1, which features basic bluetooth support.Also, I am NOT responsible for bricking your device. Note: The following steps are to compile directly on TK1, and features some hack-y steps for installing them. The rest of this article are detailed steps for those who don’t know about this. If you are familiar with how to compile Linux kernel modules for Jetson TK1, above is all you need to continue. This has bugged me for quite a while, but I figured it out anyway (with hints from this Ubuntu bug report). Unlike other WiFi-Bluetooth-combo chips from Atheros, this one doesn’t specify which Bluetooth chip it uses (judging by BT 4.0 support, it should be AR3012), but nevertheless you still need ath3k driver and firmware for Bluetooth support. Since it belongs to 9xxx series, Linux kernel has the well-supported driver ath9k for it. AR5B22 is the Mini PCIe reference design for AR9462, which features both 2.4GHz and 5GHz WiFi and Bluetooth 4.0, according to WikiDevi. This is what the chip looks like when installed on TK1. The system provided by NVIDIA (Linux4Tegra 21.4) doesn’t have Atheros driver built-in, so I have to compile it to make use of the device. I recently got a Atheros AR5B22 chip for my Jetson TK1 board, in order to make it support WiFi and Bluetooth.

Qualcomm atheros ar3012 bluetooth 4.0 coexist