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linuxgpskernelpyserialuart

Reading from uart

I am using am57x micro-controller and plugged my ublox neo-m8n gps to UART6. After putting uart6 in device tree as shown below, how can I know which file to read from? i couldn't find anything in /sys/class/.. how do i know which tty file the gps is writing to? Are there any uart native commands like the iscdetect and i2cget for i2c? Any help is appreciated

From dra7.dtsi:

uart6: serial@48068000 {
        compatible = "ti,dra742-uart", "ti,omap4-uart";
        reg = <0x48068000 0x100>;
        interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
        ti,hwmods = "uart6";
        clock-frequency = <48000000>;
        status = "disabled";
        dmas = <&sdma_xbar 79>, <&sdma_xbar 80>;
        dma-names = "tx", "rx";
    };

From my device tree:

&uart6 {
    pinctrl-names = "default";
    pinctrl-0 = <&uart6_pins_default>;
    status = "okay";
};
Solution

  • Never mind, after a lot of trial, I found out that it was writing to /dev/ttyS5. The link below helped me figure it out: https://www.technexion.com/support/knowledgebase/using-a-serial-port-from-a-linux-shell/