Current support in libnfc is quite limited:
- Shows ATQA & 4-byte JewelID LSB;
- Proprietary commands must be sent manually with e.g. nfc_initiator_transceive_bytes().
These tags can be used as NFC Forum Type 1 tags.
The ACR122 manual has a few examples on page 19.
REQA WUPA RID RALL READ WRITE_E WRITE_NE