Re: [PATCH] USB: cdc-acm: Add support for second ACM channel on more Nokia phones

[Рыжов Фёдор]

30.03.2026 13:04, Oliver Neukum пишет:
> Hi Fyodor,
> 
> On 26.03.26 15:37, Рыжов Фёдор wrote:
> 
>> This patch extends the whitelist with all S60v3.x and S60v5.x phones,
>> supported by official "Nokia PC Suite" driver for Windows. Device IDs
>> are taken from its installation configuration file. Older S60v2.x and
>> S60v1.x devices were not added because I have no hardware to test.
> 
> Thank you for doing this and testing the patch. One nit.
> This has two IDs for the same model. This looks like a typo, even
> if it is real. Could you add a comment to such entries?
> 
>     Regards
>         Oliver
> 

Hello Oliver,

Thank you for your response.

Nokia phones have two kinds of model names: "commercial" (for example, "X3-02") and "type identifier" (my X3-02 is "RM-639"). There are cases when different phones (with different RM codes) were released under one commercial name. They look and work very similarly, but may have difference in memory amount, radio bands, SIM operator lock, region-specific SARs, etc. For example, T-Mobile branded Lumia 710 is "RM-809", but "global version" has code "RM-803".

Different RM-models have different incompatible firmwares. They also have different USB PIDs. That's why there are multiple lines with same model name.

I specified only the commercial model names in my patch, because my source of information (the driver configuration) does not provide the RM codes.