3rd-party/linux-kernel-module-cheat
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split kernel module api docs to README

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Ciro Santilli
2018-07-01 23:37:37 +01:00
parent 8f37cd0d22
commit 6c241279a6
18 changed files with 490 additions and 296 deletions
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23
kernel_module/dep2.c
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@@ -1,30 +1,21 @@
#include <linux/delay.h> /* usleep_range */
/* https://github.com/cirosantilli/linux-kernel-module-cheat#kernel-module-dependencies */
#include <linux/debugfs.h>
#include <linux/kernel.h>
#include <linux/kthread.h>
#include <linux/module.h>
extern int lkmc_dep;
static struct task_struct *kthread;
static int work_func(void *data)
{
while (!kthread_should_stop()) {
usleep_range(1000000, 1000001);
lkmc_dep++;
}
return 0;
}
extern u32 lkmc_dep;
static struct dentry *debugfs_file;
static int myinit(void)
{
kthread = kthread_create(work_func, NULL, "mykthread");
wake_up_process(kthread);
debugfs_file = debugfs_create_u32("lkmc_dep2", S_IRUSR | S_IWUSR, NULL, &lkmc_dep);
return 0;
}
static void myexit(void)
{
kthread_stop(kthread);
debugfs_remove(debugfs_file);
}
module_init(myinit)