Re: [PATCH v2] iio: humidity: am2315: add am2320 to i2c_device_id table

[David Lechner]

On 8/11/26 12:58 PM, Nicolás Antinori wrote:
> On Tue Aug 11, 2026 at 12:49 PM -03, David Lechner wrote:
>> On 8/11/26 10:12 AM, Nicolás Antinori wrote:
>>> On Mon Aug 10, 2026 at 4:28 PM -03, David Lechner wrote:
>>>> On 8/10/26 1:32 PM, Nicolás Antinori wrote:
>>>>> The AM2320 is fully compatible with the AM2315 sensor in terms of I2C
>>>>> communication protocol and measurement conversions.
>>>>>
>>>>> Add the "am2320" entry to the i2c_device_id table.
>>>>
>>>> Interesting. No devicetree bindings for this one? What kind of
>>>> system is it on?
>>>>
>>>
>>> I am testing this on a Raspberry Pi 3b mounted on a protoboard.
>>
>> How do you tell the RPi to bind the driver?
>>
>> Since Raspberry Pi is ARM-based, usually we would use devicetree
>> overlay to do this, which would mean that we should write a
>> dt-bindings .yaml file for these chips.
> 
> I do it manually.
> 
> I use that RPi for development, at the moment the kernel I am using is 
> 7.2.0-rc6-v8+ with CONFIG_AM2315=m. When I need to use the AM2320 I
> modprobe it with:
> 
> $ sudo modprobe am2315
> 
> And then 
> 
> $ sudo bash -c "echo am2315 0x5c > /sys/bus/i2c/devices/i2c-1/new_device"
> 
> (With the modifications I made ... echo am2320 ... works as well)
> The pins for i2c I am using are GPIO 2 (SDA) and GPIO 3 (SCL).
> 
> If a dt-binding yaml is needed I can send another patch with it!
> 
> 

Yes please. It will make it easier for others to use as well.