diff options
author | Will Dyson <will.dyson@gmail.com> | 2005-09-16 02:55:07 -0700 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-10-28 09:52:50 -0700 |
commit | d5dee80ad69439ad8dccf8fa4d7fed0068aec9cf (patch) | |
tree | e7983a7c7dce4213431a1b951d3d803167ed41f9 /drivers | |
parent | 3dc7c555636e46bb64b4da3570a345f4b247eaf0 (diff) |
[PATCH] add sysfs support for ide tape
I was recently given an old Travan tape drive and asked to do something
useful with it. The ide-scsi + st (+serverworks ide controller) combo
results in a hard lockup of the machine which I have not had the energy to
debug, so I turned to ide-tape (which seems to work). The system in
question debian stable, using udev to manage /dev.
The following patch to ide-tape.c allows udev to create the cdev nodes for
my drive.
Cc: Gadi Oxman <gadio@netvision.net.il>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/ide/ide-tape.c | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index ee38e6b143a..95abe981530 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -1013,6 +1013,8 @@ typedef struct ide_tape_obj { static DECLARE_MUTEX(idetape_ref_sem); +static struct class *idetape_sysfs_class; + #define to_ide_tape(obj) container_of(obj, struct ide_tape_obj, kref) #define ide_tape_g(disk) \ @@ -4704,6 +4706,10 @@ static void ide_tape_release(struct kref *kref) drive->dsc_overlap = 0; drive->driver_data = NULL; + class_device_destroy(idetape_sysfs_class, + MKDEV(IDETAPE_MAJOR, tape->minor)); + class_device_destroy(idetape_sysfs_class, + MKDEV(IDETAPE_MAJOR, tape->minor + 128)); devfs_remove("%s/mt", drive->devfs_name); devfs_remove("%s/mtn", drive->devfs_name); devfs_unregister_tape(g->number); @@ -4878,6 +4884,11 @@ static int ide_tape_probe(struct device *dev) idetape_setup(drive, tape, minor); + class_device_create(idetape_sysfs_class, + MKDEV(IDETAPE_MAJOR, minor), dev, "%s", tape->name); + class_device_create(idetape_sysfs_class, + MKDEV(IDETAPE_MAJOR, minor + 128), dev, "n%s", tape->name); + devfs_mk_cdev(MKDEV(HWIF(drive)->major, minor), S_IFCHR | S_IRUGO | S_IWUGO, "%s/mt", drive->devfs_name); @@ -4903,6 +4914,7 @@ MODULE_LICENSE("GPL"); static void __exit idetape_exit (void) { driver_unregister(&idetape_driver.gen_driver); + class_destroy(idetape_sysfs_class); unregister_chrdev(IDETAPE_MAJOR, "ht"); } @@ -4911,11 +4923,33 @@ static void __exit idetape_exit (void) */ static int idetape_init (void) { + int error = 1; + idetape_sysfs_class = class_create(THIS_MODULE, "ide_tape"); + if (IS_ERR(idetape_sysfs_class)) { + idetape_sysfs_class = NULL; + printk(KERN_ERR "Unable to create sysfs class for ide tapes\n"); + error = -EBUSY; + goto out; + } + if (register_chrdev(IDETAPE_MAJOR, "ht", &idetape_fops)) { printk(KERN_ERR "ide-tape: Failed to register character device interface\n"); - return -EBUSY; + error = -EBUSY; + goto out_free_class; } - return driver_register(&idetape_driver.gen_driver); + + error = driver_register(&idetape_driver.gen_driver); + if (error) + goto out_free_driver; + + return 0; + +out_free_driver: + driver_unregister(&idetape_driver.gen_driver); +out_free_class: + class_destroy(idetape_sysfs_class); +out: + return error; } module_init(idetape_init); |