diff options
author | Todd Poynor <tpoynor@mvista.com> | 2005-06-30 00:23:27 (GMT) |
---|---|---|
committer | Thomas Gleixner <tglx@mtd.linutronix.de> | 2005-07-01 09:05:46 (GMT) |
commit | 9bc7b38731dd1cc1635ab12f8de48866f603b06e (patch) | |
tree | 080932fb759f2f122ed81c88d15b336c025a2ff4 /drivers/mtd/mtdchar.c | |
parent | bd7bcf52dabba9c391142fd515221fcb87b7c712 (diff) | |
download | linux-fsl-qoriq-9bc7b38731dd1cc1635ab12f8de48866f603b06e.tar.xz |
[MTD] mtdchar.c: Replace DEVFS by udev
Switch from DEVFS to udev for dynamic creation of device nodes for mtd
char devices.
Creates a new LDM class "mtd" with writeable and read-only devices
registered for each mtdchar device.
From: Paolo Galtieri <pgaltieri@mvista.com>
Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/mtd/mtdchar.c')
-rw-r--r-- | drivers/mtd/mtdchar.c | 52 |
1 files changed, 24 insertions, 28 deletions
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index da3f1a8..b606f81 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -1,5 +1,5 @@ /* - * $Id: mtdchar.c,v 1.70 2005/04/01 15:36:11 nico Exp $ + * $Id: mtdchar.c,v 1.72 2005/06/30 00:23:24 tpoynor Exp $ * * Character-device access to raw MTD devices. * @@ -15,27 +15,30 @@ #include <linux/fs.h> #include <asm/uaccess.h> -#ifdef CONFIG_DEVFS_FS -#include <linux/devfs_fs_kernel.h> +#include <linux/device.h> + +static struct class *mtd_class; static void mtd_notify_add(struct mtd_info* mtd) { if (!mtd) return; - devfs_mk_cdev(MKDEV(MTD_CHAR_MAJOR, mtd->index*2), - S_IFCHR | S_IRUGO | S_IWUGO, "mtd/%d", mtd->index); - - devfs_mk_cdev(MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1), - S_IFCHR | S_IRUGO, "mtd/%dro", mtd->index); + class_device_create(mtd_class, MKDEV(MTD_CHAR_MAJOR, mtd->index*2), + NULL, "mtd%d", mtd->index); + + class_device_create(mtd_class, + MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1), + NULL, "mtd%dro", mtd->index); } static void mtd_notify_remove(struct mtd_info* mtd) { if (!mtd) return; - devfs_remove("mtd/%d", mtd->index); - devfs_remove("mtd/%dro", mtd->index); + + class_device_destroy(mtd_class, MKDEV(MTD_CHAR_MAJOR, mtd->index*2)); + class_device_destroy(mtd_class, MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1)); } static struct mtd_notifier notifier = { @@ -43,22 +46,6 @@ static struct mtd_notifier notifier = { .remove = mtd_notify_remove, }; -static inline void mtdchar_devfs_init(void) -{ - devfs_mk_dir("mtd"); - register_mtd_user(¬ifier); -} - -static inline void mtdchar_devfs_exit(void) -{ - unregister_mtd_user(¬ifier); - devfs_remove("mtd"); -} -#else /* !DEVFS */ -#define mtdchar_devfs_init() do { } while(0) -#define mtdchar_devfs_exit() do { } while(0) -#endif - /* * We use file->private_data to store a pointer to the MTDdevice. * Since alighment is at least 32 bits, we have 2 bits free for OTP @@ -657,13 +644,22 @@ static int __init init_mtdchar(void) return -EAGAIN; } - mtdchar_devfs_init(); + mtd_class = class_create(THIS_MODULE, "mtd"); + + if (IS_ERR(mtd_class)) { + printk(KERN_ERR "Error creating mtd class.\n"); + unregister_chrdev(MTD_CHAR_MAJOR, "mtd"); + return 1; + } + + register_mtd_user(¬ifier); return 0; } static void __exit cleanup_mtdchar(void) { - mtdchar_devfs_exit(); + unregister_mtd_user(¬ifier); + class_destroy(mtd_class); unregister_chrdev(MTD_CHAR_MAJOR, "mtd"); } |