# Quectel EXTSDK Examples

This is part is show how to test the examples in the ql-ol-extsdk.

run the script to enable the cross compile tool.

    source ql-ol-crosstool/ql-ol-crosstool-env-init
    QUECTEL_PROJECT_NAME      =EC25E
    QUECTEL_PROJECT_REV       =EC25EFAR06A12M4G_OCPU_20.200


## Linux UserSpace APP

hello.c

    #include <stdio.h>
    int main()
    {
        printf("hello world\n");
        return 0;
    }

Makefile

    default:
        arm-oe-linux-gnueabi-gcc hello.c -o hello


## Linux kernel modules

hello.c

    #include <linux/init.h>
    #include <linux/module.h>
    #include <linux/kernel.h>

    MODULE_LICENSE("GPL");
    MODULE_AUTHOR("Test");
    MODULE_VERSION("V1");
    MODULE_DESCRIPTION("Kernel example");

    static int year = 2021;

    static int __init hello_init(void)
    {
        printk(KERN_WARNING "Hello Kernel, it's %d!\n", year);
        return 0;
    }

    static void __exit hello_exit(void)
    {
        printk("Bye, kernel!\n");
    }

    module_init(hello_init);
    module_exit(hello_exit);

Makefile

.. highlight:: c

    obj-m := hello.o
    all:
      $(MAKE) ARCH=arm CROSS_COMPILE=arm-oe-linux-gnueabi- -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules


## ql-ol-extsdk