xref: /aosp_15_r20/external/kmod/testsuite/module-playground/mod-simple.c (revision cc4ad7da8cefe208cb129ac2aa9a357c7c72deb2)
1*cc4ad7daSAndroid Build Coastguard Worker #include <linux/debugfs.h>
2*cc4ad7daSAndroid Build Coastguard Worker #include <linux/init.h>
3*cc4ad7daSAndroid Build Coastguard Worker #include <linux/module.h>
4*cc4ad7daSAndroid Build Coastguard Worker 
5*cc4ad7daSAndroid Build Coastguard Worker static struct dentry *debugfs_dir;
6*cc4ad7daSAndroid Build Coastguard Worker 
test_show(struct seq_file * s,void * data)7*cc4ad7daSAndroid Build Coastguard Worker static int test_show(struct seq_file *s, void *data)
8*cc4ad7daSAndroid Build Coastguard Worker {
9*cc4ad7daSAndroid Build Coastguard Worker 	seq_puts(s, "test");
10*cc4ad7daSAndroid Build Coastguard Worker 	return 0;
11*cc4ad7daSAndroid Build Coastguard Worker }
12*cc4ad7daSAndroid Build Coastguard Worker 
13*cc4ad7daSAndroid Build Coastguard Worker DEFINE_SHOW_ATTRIBUTE(test);
14*cc4ad7daSAndroid Build Coastguard Worker 
test_module_init(void)15*cc4ad7daSAndroid Build Coastguard Worker static int __init test_module_init(void)
16*cc4ad7daSAndroid Build Coastguard Worker {
17*cc4ad7daSAndroid Build Coastguard Worker 	debugfs_dir = debugfs_create_dir(KBUILD_MODNAME, NULL);
18*cc4ad7daSAndroid Build Coastguard Worker 	debugfs_create_file("test", 0444, debugfs_dir, NULL, &test_fops);
19*cc4ad7daSAndroid Build Coastguard Worker 
20*cc4ad7daSAndroid Build Coastguard Worker 	return 0;
21*cc4ad7daSAndroid Build Coastguard Worker }
22*cc4ad7daSAndroid Build Coastguard Worker 
test_module_exit(void)23*cc4ad7daSAndroid Build Coastguard Worker static void test_module_exit(void)
24*cc4ad7daSAndroid Build Coastguard Worker {
25*cc4ad7daSAndroid Build Coastguard Worker 	debugfs_remove_recursive(debugfs_dir);
26*cc4ad7daSAndroid Build Coastguard Worker }
27*cc4ad7daSAndroid Build Coastguard Worker 
28*cc4ad7daSAndroid Build Coastguard Worker module_init(test_module_init);
29*cc4ad7daSAndroid Build Coastguard Worker module_exit(test_module_exit);
30*cc4ad7daSAndroid Build Coastguard Worker 
31*cc4ad7daSAndroid Build Coastguard Worker MODULE_AUTHOR("Lucas De Marchi <[email protected]>");
32*cc4ad7daSAndroid Build Coastguard Worker MODULE_LICENSE("GPL");
33