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https://github.com/cirosantilli/linux-kernel-module-cheat.git
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dae60aa248
Then inside, split packages/lkmc into kernel_modules and userland, to keep userland out of the kernel_modules parent path, which makes no sense. Copy built modules and userland to the output rootfs overlay. Document Linux distro tradeoffs.
39 lines
696 B
C
39 lines
696 B
C
/* https://github.com/cirosantilli/linux-kernel-module-cheat#kthread */
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#include <linux/delay.h> /* usleep_range */
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#include <linux/kernel.h>
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#include <linux/kthread.h>
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#include <linux/module.h>
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static struct task_struct *kthread;
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static int work_func(void *data)
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{
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u32 i = 0;
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while (!kthread_should_stop()) {
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pr_info("%u\n", i);
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usleep_range(1000000, 1000001);
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i++;
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if (i == 10)
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i = 0;
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}
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return 0;
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}
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static int myinit(void)
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{
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kthread = kthread_create(work_func, NULL, "mykthread");
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wake_up_process(kthread);
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return 0;
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}
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static void myexit(void)
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{
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/* Waits for thread to return. */
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kthread_stop(kthread);
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}
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module_init(myinit)
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module_exit(myexit)
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MODULE_LICENSE("GPL");
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