PCSC "Insufficient Buffer" error return while using ifdnfc-activate

[ronie19]

https://github.com/nfc-tools/libnfc/blob/7ebf9b92d687a53ec156e809517beb97bd5bf59d/libnfc/drivers/pcsc.c#L604

Using Raspberry Pi Gives this error. Libnfc is installed and nfc-poll and nfc-list commands work properly. ifdnfc-activate gives off this error that I have traced back to pcsc and SCardGetAttrib() . Any leads to increase buffer size ?

[eximius313]

@ronie19 I have exactly the same problem :(

nfc-scan-device gives me:

nfc-scan-device uses libnfc libnfc-1.8.0-63-g3df7f25
1 NFC device(s) found:
- _PN532_UART:
    pn532_uart:/dev/ttyUSB0:115200

nfc-poll gives:

nfc-poll uses libnfc libnfc-1.8.0-63-g3df7f25
NFC reader: _PN532_UART opened
NFC device will poll during 36000 ms (20 pollings of 300 ms for 6 modulations)
ISO/IEC 14443A (106 kbps) target:
    ATQA (SENS_RES): 00  04
       UID (NFCID1): f2  4b  14  1b
      SAK (SEL_RES): 08

But ifdnfc-activate gives:

Activating ifdnfc with "pn532_uart:/dev/ttyUSB0:115200"...
Insufficient buffer.

and pcsc_scan does not see any card:

Using reader plug'n play mechanism
Scanning present readers...
0: _PN532_UART 00 00

 Reader 0: _PN532_UART 00 00
  Event number: 0
  Card state: Card removed,

My config is: /etc/nfc/libnfc.conf

allow_autoscan = true
allow_intrusive_scan = false
log_level = 1
device.name = "_PN532_UART"
device.connstring = "pn532_uart:/dev/ttyUSB0:115200"

and /etc/reader.conf.d/libifdnfc is:

FRIENDLYNAME      "_PN532_UART"
DEVICENAME        /dev/ttyUSB0
LIBPATH           /usr/local/lib/libifdnfc.so
CHANNELID         1

Have you managed to solve this issue?

Kind regards

[ronie19]

@ronie19 I have exactly the same problem :(

nfc-scan-device gives me:

nfc-scan-device uses libnfc libnfc-1.8.0-63-g3df7f25
1 NFC device(s) found:
- _PN532_UART:
    pn532_uart:/dev/ttyUSB0:115200

nfc-poll gives:

nfc-poll uses libnfc libnfc-1.8.0-63-g3df7f25
NFC reader: _PN532_UART opened
NFC device will poll during 36000 ms (20 pollings of 300 ms for 6 modulations)
ISO/IEC 14443A (106 kbps) target:
    ATQA (SENS_RES): 00  04
       UID (NFCID1): f2  4b  14  1b
      SAK (SEL_RES): 08

But ifdnfc-activate gives:

Activating ifdnfc with "pn532_uart:/dev/ttyUSB0:115200"...
Insufficient buffer.

and pcsc_scan does not see any card:

Using reader plug'n play mechanism
Scanning present readers...
0: _PN532_UART 00 00

 Reader 0: _PN532_UART 00 00
  Event number: 0
  Card state: Card removed,

My config is: /etc/nfc/libnfc.conf

allow_autoscan = true
allow_intrusive_scan = false
log_level = 1
device.name = "_PN532_UART"
device.connstring = "pn532_uart:/dev/ttyUSB0:115200"

and /etc/reader.conf.d/libifdnfc is:

FRIENDLYNAME      "_PN532_UART"
DEVICENAME        /dev/ttyUSB0
LIBPATH           /usr/local/lib/libifdnfc.so
CHANNELID         1

Have you managed to solve this issue?

Kind regards

Yes... Only solution I have found is using 64-bit raspberry Pi OS ...32-bit OS gives buffer problem.

[eximius313]

Thanks, on aarch64 it works indeed. Too bad that 32bit is still affected :(

[ronie19]

Hello, sorry to resurrect an old thread. I am having exactly same problem as you have described.

I am getting insufficient buffer when trying to run ifdnfc-activate.

I am using a Raspberry Pi Zero 2 W and a PN532 (Red model) connected on the i2c bus.

nfc-poll is working fine, and also pcsc_scan works, just i am unable to run ifdnfc-activate with the error

Activating ifdnfc with "pn532_i2c:/dev/i2c-1"... Insufficient buffer.

What model of Raspberry Pi and distro did you use to end up getting the reader to work fully? Thank you

Simply use 64 bit RPi OS. The latest legacy version only.