3rd-party/linux-kernel-module-cheat
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Create debugfs files directly on debugfs root instead of a subdirectory

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Ciro Santilli
2017-07-14 11:24:52 +01:00
parent d4ed593451
commit 1918c4fdfe
10 changed files with 21 additions and 26 deletions
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7
kernel_module/fops.c
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@@ -28,7 +28,7 @@ Here we use debugfs.
MODULE_LICENSE("GPL");
static struct dentry *dir;
static struct dentry *debugfs_file;
static char data[] = {'a', 'b', 'c', 'd'};
static int open(struct inode *inode, struct file *filp)
@@ -143,14 +143,13 @@ static const struct file_operations fops = {
static int myinit(void)
{
dir = debugfs_create_dir("lkmc_fops", 0);
debugfs_create_file("f", S_IRUSR | S_IWUSR, dir, NULL, &fops);
debugfs_file = debugfs_create_file("lkmc_fops", S_IRUSR | S_IWUSR, NULL, NULL, &fops);
return 0;
}
static void myexit(void)
{
debugfs_remove_recursive(dir);
debugfs_remove_recursive(debugfs_file);
}
module_init(myinit)