i2c driver for AURA capable GPUs
You can get releases for Fedora, RHEL, CentOS, OpenSUSE, and OpenMandriva from my Copr.
If you wish to use this with Secure Boot, follow this guide.
The i2c-dev module is required:
List all i2c devices with:
sudo i2cdetect -l
It will output something like
i2c-3 smbus SMBus PIIX4 adapter port 4 at 0b00 SMBus adapter
i2c-10 i2c AMDGPU DM i2c hw bus 4 I2C adapter
i2c-1 smbus SMBus PIIX4 adapter port 2 at 0b00 SMBus adapter
i2c-8 i2c AMDGPU DM i2c hw bus 2 I2C adapter
i2c-6 i2c AMDGPU DM i2c hw bus 1 I2C adapter
i2c-4 i2c AMDGPU DM i2c hw bus 0 I2C adapter
i2c-11 i2c AURA GPU adapter I2C adapter
i2c-2 smbus SMBus PIIX4 adapter port 3 at 0b00 SMBus adapter
i2c-0 smbus SMBus PIIX4 adapter port 0 at 0b00 SMBus adapter
i2c-9 i2c AMDGPU DM i2c hw bus 3 I2C adapter
i2c-7 i2c dmdc I2C adapter
i2c-5 i2c dmdc I2C adapter
Here we can see this module "AURA GPU adapter" is detected as device number 11. We can now scan that device with:
sudo i2cdetect -y 11
It should output all clients available on that bus:
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- 08 -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- 29 -- -- -- -- -- --
30: 30 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- 68 -- -- -- -- -- -- --
70: 70 -- -- -- -- -- -- --