# Re: \[PATCH\] radeonfb: Let hwmon driver probe the "monid" I2C bus

- From: Benjamin Herrenschmidt \<benh@kernel.crashing.org\>
- Date: 2011-01-13 04:50:10 
- List: linux-fbdev
- Page: https://ratatoskr.run/linux-fbdev/2011/01/13461035
- Thread: https://ratatoskr.run/linux-fbdev/2011/01/13461032/t.md

```text
On Thu, 2011-01-13 at 14:44 +1000, Dave Airlie wrote:
> The radeon BIOS actually contains a table to tell us what chip is on
> the bus,
> in the KMS driver we read this table and load the appropriate hwmon
> device,
> 
> There could possibly be other things on this bus than hw monitor
> devices.
> 
> Though radeonfb should be considered mostly dead. 

I want to test that on a few powermacs first. "probing" i2c can be
destructive and f* knows what Apple put on those busses on some
machines.

Haven't had a chance to look much yet.

Cheers,
Ben.


```