Feature request...
... I believe that because GPUs 1, 3, and 5 don't return fan values that cgminer is ignoring their temps w/r auto-fan. Assuming that cgminer can't tell via ADL or otherwise that two GPUs share a fan, I would like to able to tell that to cgminer and thus have my temp targets applied to (in my case) odd-numbered GPUs as well as to even-numbered ones.
I cannot code for a 5970 or 6990 without poking and prodding them with code, and since I don't own one, it's unlikely to happen in a safe manner. If I just guess, I'll likely do something which could be bad...
I might've been unclear. I was suggesting that the user have the option to specify to the software, presumably via .conf or command line, that certain GPUs comprise a "fan group," i.e., share a fan, and also which of the group has the fan output and control. I don't know, something like, in my case,
"fan-group" : "0,1/0, 2,3/2, 4,5/5"
...meaning GPUs 0 and 1 share a fan, the speed of which is readable and controllable via GPU 0; etc.
What I'm thinking of would not require any additional hardware coding, but it would require additional fan-control logic within cgminer.