Messages in this thread | | | From | Stephen Hemminger <> | Subject | Re: Probable module bug in linux-2.6.5-1.358 | Date | Thu, 07 Oct 2004 15:09:28 -0700 |
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I can't reproduce your problem with a simple dummy character device.
------------- /* * Minimum driver to test character device stuff. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this program; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 021110-1307, USA. */
#include <linux/module.h> #include <linux/init.h> #include <linux/config.h> #include <linux/kernel.h> #include <linux/major.h> #include <linux/fs.h> #include <linux/device.h>
#define MYMAJOR 204
static int dummy_open(struct inode *inode, struct file *file) { pr_info("dummy_open (%d)\n", iminor(inode)); return 0; }
static int dummy_release(struct inode *inode, struct file *file) { pr_info("dummy_release (%d)\n", iminor(inode)); return 0; }
static struct file_operations dummy_ops = { .owner = THIS_MODULE, .open = dummy_open, .release = dummy_release, };
static int __init dummy_init(void) { pr_info("dummy module init\n"); return register_chrdev(MYMAJOR, "dummy", &dummy_ops); }
static void __exit dummy_exit(void) { pr_info("dummy module unloaded\n"); unregister_chrdev(MYMAJOR, "dummy"); }
module_init(dummy_init); module_exit(dummy_exit);
MODULE_LICENSE("GPL");
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