Bug#1020276: linux-image-5.19.0-1-amd64: NFC device not detected

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From	Diederik de Haas <didi.debian@cknow.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1020276: linux-image-5.19.0-1-amd64: NFC device not detected
Date	Mon, 19 Sep 2022 16:10:01 +0200
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On maandag 19 september 2022 09:46:41 CEST Oliver Sander wrote:
> I have a ThinkPad X1 Yoga (4th gen).  It has an NFC device built in.
> The NFC device appears in the BIOS, and it is enabled there.
> However, I cannot see it from Debian at all.  Neither lsusb nor
> lspci show anything ressembling an NFC device.  I would gladly help
> to debug this, but I don't know what to do in such a situation.

What is needed is finding out which NFC chip(s/set) is being used in your 
device. Assuming it is supported on Linux, it could be as simple as enabling a 
kernel config option.

I'm guessing the device came initially with Windows and if you still have 
that, it could be that it can tell you which NFC hardware is being used.
Another option is asking Lenovo directly.

You could also try "modprobe nfc" and see whether dmesg (f.e.) outputs 
something which would give a clue as to the NFC hardware.

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Thread

Bug#1020276: linux-image-5.19.0-1-amd64: NFC device not detected Diederik de Haas <didi.debian@cknow.org> - 2022-09-19 16:10 +0200
  Bug#1020276: linux-image-5.19.0-1-amd64: NFC device not detected Diederik de Haas <didi.debian@cknow.org> - 2022-09-19 16:30 +0200
    Bug#1020276: linux-image-5.19.0-1-amd64: NFC device not detected Diederik de Haas <didi.debian@cknow.org> - 2022-09-21 10:40 +0200

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