Re: [PATCH] hwmon: (sht3x) add support for SHT85
From: Guenter Roeck
Date: Tue Dec 09 2025 - 22:10:10 EST
On 12/9/25 13:19, Guenter Roeck wrote:
On 12/9/25 09:58, Antoni Pokusinski wrote:
SHT85 is a temperature and humidity sensor with an interface very
similar to SHT3x. However, it does not feature alerts (and therefore
limits).
The datasheet does suggest that the chip supports both temperature and
humidity tracking alert status, which only makes sense if the chip
supports alert limits. It does not support an alert _pin_, but that
doesn't mean that it does not support limits. I'll want to see definite
confirmation that the chip does not support the limit commands.
Looking closer into the SHT85 datasheet, the sensor chip is actually a SHT35.
Given that, disabling limit attributes and alarms is neither necessary
nor acceptable. It isn't even necessary to add "sht85" to the device ID
table; sht3x works just fine. I don't mind if it is added, but it does
not need a new chip ID (at least until/unless interrupt support is added
to the driver).
Thanks,
Guenter