You need to get the source code for exact kernel version you are running. Install base-devel and linux-headers packages: $ sudo pacman -S base-devel linux-headers Install the build environmentįirst of all, you need to have the tools to compile source code. In this post I will show the steps to follow to make this crappy dongle work in archlinux with kernel 5.4.2-arch1-1. To make it work in the new kernel you have to patch and compile the btusb module. So this chip is a fake clone of the Qualcom CSR8510.Īccording to the archlinux wiki, this cheap dongle only works in the kernel version ≤ 3.9.11. Inside the dongle, the bluetooth chip has written on it the following: BARROT IdProduct 0x0001 Bluetooth Dongle (HCI mode) IdVendor 0x0a12 Cambridge Silicon Radio, Ltd Device 008: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) The lsusb -v output shows the identification of this hardware: $ lsusb -v But when i connected it to my archlinux machine the dongle was not recognized. I bought this cheap dongle to test the bluetooth connection of my AnnePro 2. Fake CSR 4.0 dongles are not recognized by new kernels.
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