On Tue, 13 Jan 2026 10:45:02 +0100 Konrad Dybcio <[email protected]> wrote:
> I was referring to the NFC eSE (embedded Secure Element) which usually > has a separate connection to the SoC Yes, gpio 0-4 are connected to NFC eSE and gpio 30-34 are for fingerprint scanner. Here is the list of reserved gpio and their functions according to the device's schematic. 0 - ESE_SPI_MISO 1 - ESE_SPI_MOSI 2 - ESE_SPI_SCLK 3 - ESE_SPI_CS_N 30 - FP_SPI_MISO 31 - FP_SPI_MOSI 32 - FP_SPI_SCLK 33 - FP_SPI_CS_N Though Redmi Note 8 does not have NFC, kernel crashes if 0-4 gpios are not reserved. Tested-by: Biswapriyo Nath <[email protected]> Thanks.
