Can't connect to Aura MB controller

[yaliv]

I need to change my laptop keyboard backlight.

Here's my HW probe result:
https://linux-hardware.org/?probe=27bb2f0366
There I see my i2c_piix4 vendor is AMD and my keyboard is PS/2.

I've patched the i2c-piix4 module and here's the result of calling sudo i2cdetect -l:

i2c-3	smbus     	SMBus PIIX4 adapter port 2 at 0b00	SMBus adapter
i2c-10	i2c       	NVIDIA i2c adapter 5 at 1:00.0  	I2C adapter
i2c-1	i2c       	NVIDIA GPU I2C adapter          	I2C adapter
i2c-8	i2c       	dmdc                            	I2C adapter
i2c-6	smbus     	SMBus PIIX4 adapter port 1 at 0b20	SMBus adapter
i2c-4	smbus     	SMBus PIIX4 adapter port 3 at 0b00	SMBus adapter
i2c-2	smbus     	SMBus PIIX4 adapter port 0 at 0b00	SMBus adapter
i2c-0	i2c       	Synopsys DesignWare I2C adapter 	I2C adapter
i2c-9	i2c       	NVIDIA i2c adapter 1 at 1:00.0  	I2C adapter
i2c-7	i2c       	AMDGPU DM i2c hw bus 0          	I2C adapter
i2c-5	smbus     	SMBus PIIX4 adapter port 4 at 0b00	SMBus adapter

I've called chmod 777 to all the SMBus PIIX4 adapters (/dev/i2c-6, etc.).

When I run Borealis:

smbus: /sys/bus/pci/devices/0000:00:14.0
i2c-sys: /dev/i2c-2
i2c-aux: /dev/i2c-6
thread 'main' panicked at 'Can't connect to Aura MB controller. If using an AMD system, have you applied the kernel patch?: I2CError(Nix(Sys(EIO)))', src/libcore/result.rs:999:5
note: Run with `RUST_BACKTRACE=1` environment variable to display a backtrace.

---

My kernel info:

$ uname -r
5.2.0-1-MANJARO

$ dkms status
deepin-anything, 0.1.0, 4.19.56-1-MANJARO, x86_64: installed
deepin-anything, 0.1.0, 5.2.0-1-MANJARO, x86_64: installed
i2c-piix4, 1.0, 5.2.0-1-MANJARO, x86_64: installed

[philpax]

Hi,

Unfortunately, I haven't had much time to work on Borealis, so things have stagnated. You might have better luck with CalcProgrammer1's OpenAuraSDK, which has seen more active development.