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Diffstat (limited to 'Documentation/nfc/nfc-pn544.txt')
| -rw-r--r-- | Documentation/nfc/nfc-pn544.txt | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/Documentation/nfc/nfc-pn544.txt b/Documentation/nfc/nfc-pn544.txt deleted file mode 100644 index b36ca14ca2d6..000000000000 --- a/Documentation/nfc/nfc-pn544.txt +++ /dev/null @@ -1,32 +0,0 @@ -Kernel driver for the NXP Semiconductors PN544 Near Field -Communication chip - -General -------- - -The PN544 is an integrated transmission module for contactless -communication. The driver goes under drives/nfc/ and is compiled as a -module named "pn544". - -Host Interfaces: I2C, SPI and HSU, this driver supports currently only I2C. - -Protocols ---------- - -In the normal (HCI) mode and in the firmware update mode read and -write functions behave a bit differently because the message formats -or the protocols are different. - -In the normal (HCI) mode the protocol used is derived from the ETSI -HCI specification. The firmware is updated using a specific protocol, -which is different from HCI. - -HCI messages consist of an eight bit header and the message body. The -header contains the message length. Maximum size for an HCI message is -33. In HCI mode sent messages are tested for a correct -checksum. Firmware update messages have the length in the second (MSB) -and third (LSB) bytes of the message. The maximum FW message length is -1024 bytes. - -For the ETSI HCI specification see -http://www.etsi.org/WebSite/Technologies/ProtocolSpecification.aspx |