Re: [PATCH v2] hwmon: Add driver for MSI Mystic Light controller voltage sensors

From: Tomasz Bojanowski

Date: Sat Nov 07 2026 - 16:48:28 EST


Hi Guenter,

On 11/7/26 13:06, Guenter Roeck wrote:
> Either case, do you have evidence that this is even needed in the
> first place ?

No. On the MS-7E61 it is not needed: the controller does not support
remote wakeup, and while hid_hw_open() holds the device open, it does
not autosuspend (runtime_status stayed active with power/control set
to auto). I added it in v2 only as a precaution, in case the device
autosuspends while the feature report is requested, without evidence
that this can happen. I think it can be dropped.

> That makes me wonder if the vendor software is buggy. I have
> two of those boards, and they both show similar values.

My follow-up crossed with your mail: the vendor software only lists
CPU VDDP on the MS-7C94 with an APU. Do your boards have CPUs without
integrated graphics?

Thanks,
Tomasz