nfc.rst

 1.. SPDX-License-Identifier: GPL-2.0
 2
 3MEI NFC
 4-------
 5
 6Some Intel 8 and 9 Series chipsets support NFC devices connected behind
 7the Intel Management Engine controller.
 8MEI client bus exposes the NFC chips as NFC phy devices and enables
 9binding with Microread and NXP PN544 NFC device driver from the Linux NFC
10subsystem.
11
12.. kernel-render:: DOT
13   :alt: MEI NFC digraph
14   :caption: **MEI NFC** Stack
15
16   digraph NFC {
17    cl_nfc -> me_cl_nfc;
18    "drivers/nfc/mei_phy" -> cl_nfc [lhead=bus];
19    "drivers/nfc/microread/mei" -> cl_nfc;
20    "drivers/nfc/microread/mei" -> "drivers/nfc/mei_phy";
21    "drivers/nfc/pn544/mei" -> cl_nfc;
22    "drivers/nfc/pn544/mei" -> "drivers/nfc/mei_phy";
23    "net/nfc" -> "drivers/nfc/microread/mei";
24    "net/nfc" -> "drivers/nfc/pn544/mei";
25    "neard" -> "net/nfc";
26    cl_nfc [label="mei/bus(nfc)"];
27    me_cl_nfc [label="me fw (nfc)"];
28   }