Linux Driver for TRF7970A



The Linux driver supports the TRF7970a RFID/NFC Transceiver. The Linux driver supports communication through the I2C bus and interfaces with the NFC sub-system.


Linux Mainline Status

Available in Linux Main line: Yes
Available through N/A

Supported Devices:

  • trf7970a


Linux Source Files

The files associated with this device are:

  1. drivers/nfc/trf7970a.c
  2. Documentation/devicetree/bindings/net/nfc/trf7970a.txt

Source Files


Linux Device Tree Documenation



Enabling Driver Support

Configure kernel with "make menuconfig" (alternatively use "make xconfig" or"make nconfig")

Menuconfig Location

Symbol: NFC_TRF7970A [=y]Type  : tristatePrompt: Texas Instruments TRF7970a NFC driver  Location:    -> Networking support (NET [=y])      -> NFC subsystem support (NFC [=y])        -> Near Field Communication (NFC) devices  Defined at drivers/nfc/Kconfig:29  Depends on: NET [=y] && NFC [=y] && SPI [=y] && NFC_DIGITAL [=y]

Fixes and Code Enhancements


If there are fixes and or code enhancements that need to be added to thisdriver please either1. Send the patches to the relevant Linux Kernel community as listed in the maintainers file located: Hereor2.  Contact your TI representative.


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