[Pcsclite-muscle] ACR122U NFC Card Reader

[Ludovic Rousseau]

Le ven. 19 janv. 2024 à 15:49, Valentin Geffroy
<valentin.geffroy at iot.bzh> a écrit :
>
> Hello,

Hello,

Sorry for the delay. Your emails was in the gmail.com spam folder.

> We've noticed an issue on the ACR122U NFC Card Reader. When its is
> connected to a Linux based embedded board (using your reader with libusb
> & pscsd 2.0.1 / ccid 1.5.5), the reader is not detected by the pcscd daemon.
>
> It works when we unplugged/plugged the reader again.
>
> After a boot:
>
> ```
> 00000095 [281473221880224] ccid_usb.c:750:OpenUSBByName() Using USB
> bus/device: 1/3
> 00000022 [281473221880224] ccid_usb.c:814:OpenUSBByName()
> bNumDataRatesSupported is 0
> 00173126 [281473221880224] ccid_usb.c:1071:ReadUSB() read failed (1/3):
> LIBUSB_ERROR_TIMEOUT
> 00055909 [281473221880224] ccid_usb.c:1095:ReadUSB() Invalid frame detected

Invalid frame detected is the problem

> Do you have tips or ideas why it doesn't work at a first boot?

Generate a new trace as described in https://ccid.apdu.fr/#support

Bye

-- 
 Dr. Ludovic Rousseau