Issue 284 in libnfc: Invalid RDR_to_PC_DataBlock frame with ACR122U

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lib...@googlecode.com

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Oct 19, 2014, 4:37:25 PM10/19/14
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Status: New
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Labels: Type-Defect Priority-Medium

New issue 284 by grunbla...@gmail.com: Invalid RDR_to_PC_DataBlock frame
with ACR122U
https://code.google.com/p/libnfc/issues/detail?id=284

Context: when using nfc-poll with an ACR122U chipset (
http://nfc-tools.org/index.php?title=ACR122 ), I get those errors:

nfc-poll uses libnfc libnfc-1.7.1-12-gb978c45
NFC reader: ACS / ACR122U PICC Interface opened
NFC device will poll during 30000 ms (20 pollings of 300 ms for 5
modulations)
error libnfc.driver.acr122_usb Invalid RDR_to_PC_DataBlock frame
nfc_initiator_poll_target: Input / Output Error

What steps will reproduce the problem?
1. launch nfc-poll
2. wait

What version of the product are you using? On what operating system?
Archlinux, libnfc-git version compiled today.


Please provide any additional information below:
Everything works fine beside that: mfoc, nfc-mfclassic...


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lib...@googlecode.com

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Oct 19, 2014, 5:42:34 PM10/19/14
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Comment #1 on issue 284 by grunbla...@gmail.com: Invalid
RDR_to_PC_DataBlock frame with ACR122U
https://code.google.com/p/libnfc/issues/detail?id=284

I forgot to say: I tried what is in the Troubleshooting section in the
README of libnfc, without success (detection works without pcscd, and with
pcscd installed, using the <string>0x0001</string> or
<string>0x0004</string> options changed nothing).

Moreover, if one tag is present on the reader before launching nfc-poll,
it "works". The error only happens when no tag is present.
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