I know very little about DESFire chips. So forgive me if my questions are obvious or stupid.
My two questions are these:
Can you allocate space, then write an NDEF-formatted file on a DESFire EV2 so that a vanilla Android or iOS cellphone (i.e. without any additional NFC-related app) reads the NDEF content and does something with it unattended, such as opening a URL, the way it would with an NFC Forum type 2 tag? If so, what minimum versions of Android / iOS are needed to read type 4 tags and function that way?
Can you do that in Linux? I’m not interested in configuring NFC chips with mobile phones. I’m from a previous generation libfreefare seems to support EV1 chips, but Wikipedia says EV2 chips are more or less backward-compatible. So maybe for a simple NDEF application it would work.