No NFC device found error
with a UART-based reader
Since v1.7.0, your PN532 UART device needs some configuration in newly introduced configuration file (eg. /etc/nfc/libnfc.conf).
Please read NEWS file, then copy libnfc.conf.sample to the right place.
Make sure to put the file in SYSCONFDIR/nfc/libnfc.conf
If you don't want SYSCONFDIR to be /usr/local/etc, use ./configure --sysconfdir=/etc
with an ACR122U under Windows
Remove ACR122U drivers from ACS
Too small reply error
With Touchatag or ACR122U
Avoid using pcscd and libnfc with acr122_usb driver all together.
You can stop pcscd or disable support of that reader by pcscd by changing the libccid list of supported readers.
How do I change the libccid list of supported readers?
- Get the libccid source code;
- edit the file readers/supported_readers.txt;
- remove the line with the VID/PID of the reader you want to disable;
- reinstall the libccid driver, or just the regenerated src/Info.plist.