Re: [PATCH v3 0/3] nfc: st-nci: Fairphone 5 NFC bring-up (ST21NFCD)

[Luca Weiss]

Hi Kristian,

On Sun Aug 23, 2026 at 9:42 PM CEST, Kristian Brox wrote:
> Hi Luca,
>
> On Fri, Aug 21, 2026 at 11:28:22 +0200, Luca Weiss wrote:
>> Can you please confirm how you tested this on your side, and if I'm
>> maybe missing some parts?
>
> Cover letter tests were postmarketOS, these changes as modules on
> 7.1.2: nfctool -d nfc0 -1 -p on an NTAG 215, then neard for NDEF.
> No extra firmware or userspace on top of the three patches.
>
> That 7.1.2 dmesg already had
>
>   nci_ntf_packet: unsupported ntf opcode 0xf02
>
> I treated a found tag as enough and did not mention it. I have a
> driver change so that NTF is handled; I'll send it in v4. The ndlc:
> dumps are debug prints.
>
> I also ran nfctool -d nfc0 -1 -p on a locally built 7.2.0 kernel
> (sc7280-mainline, with that handler): no 0xf02 line, a Type 2 tag
> in about 0.13 s, and Ctrl-C with no tag still left Powered: Yes.
>
> I have not reproduced an error after Ctrl-C with nfctool on that
> kernel. If you have the nfctool and dmesg lines from the second
> start, that would help.

I tried again a bit more yesterday and saw the same behavior. For a few
tag scans it appears fine (apart from the bunch of errors in dmesg), but
after playing around more, I again got the NFC stack into a state where
no further tag scans were possible.

I've scanned both a standard r/w NFC tag (ISO 14443-3A, NXP - NTAG216),
and sometimes my Android phone, which also got recognized as tag.

Looking forward to testing v4.

Regards
Luca

>
> Regards
> Kristian