How to use PN532 in RFIDIOt on RPi 3?

Question

Raspberry Pi

Good afternoon! I have such an nfc module which is connected to RPi 3 via Arduino UNO (uart -> usb).
In libnfc it is defined as it should

$ nfc-list
nfc-list uses libnfc 1.7.0
NFC device: pn532_uart:/dev/ttyACM0 opened

but in the program with RFIDIOt:

$ python2 NFC.py
Could not find PCSC daemon, try with option -n <code></code>if you don't have a reader

The question is how can the pn532 module be used with a PC/SC. Tried different methods. My config (reader.conf):

DEVICENAME        /dev/ttyACM0
FRIENDLYNAME      "Arduino serial"
LIBPATH           /usr/local/lib/pcsc/drivers/serial/libccidtwin.so

PC/SC log:

00000399 [1996292096] readerfactory.c:1075:RFInitializeReader() Attempting startup of Arduino serial 00 00 using /usr/local/lib/pcsc/drivers/serial/libccidtwin.so
00001177 [1996292096] readerfactory.c:950:RFBindFunctions() Loading IFD Handler 3.0
00000858 [1996292096] ifdhandler.c:1961:init_driver() Driver version: 1.4.30
00007351 [1996292096] ifdhandler.c:1978:init_driver() LogLevel: 0x0003
00000683 [1996292096] ifdhandler.c:1989:init_driver() DriverOptions: 0x0000
00002100 [1996292096] ifdhandler.c:110:CreateChannelByNameOrChannel() Lun: 0, device: /dev/ttyACM0
00001688 [1996292096] ccid_serial.c:837:OpenSerialByName() Set serial port baudrate to 115200 and correct configuration
02002751 [1996292096] ccid_serial.c:863:OpenSerialByName() Get firmware failed. Maybe the reader is not connected
00000262 [1996292096] ifdhandler.c:150:CreateChannelByNameOrChannel() failed
00000059 [1996292096] readerfactory.c:1106:RFInitializeReader() Open Port 0x0 Failed (/dev/ttyACM0)

What am I doing wrong?

Answer 1

I saw a similar glitch with the acs122 reader (it is also on pn532), for which it was necessary to unload / disable the kernel module called pn533. Otherwise, pcscd could not work with it. Perhaps in your case, too, something similar.