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[PATCH] INPUT: Create symlinks for backwards compatibility

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This creates symlinks in /sys/class/input/ to the nested class devices
to help userspace cope with the nesting.

Unfortunatly udev still needs to be updated as it can't handle symlinks
properly here :(

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman 2005-10-27 22:25:43 -07:00
parent ea9f240bd8
commit c9bcd582df
4 changed files with 32 additions and 8 deletions
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10
drivers/input/evdev.c
View File

@ -661,6 +661,7 @@ static struct file_operations evdev_fops = {
static struct input_handle *evdev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
{
struct evdev *evdev;
struct class_device *cdev;
int minor;
for (minor = 0; minor < EVDEV_MINORS && evdev_table[minor]; minor++);
@ -686,9 +687,13 @@ static struct input_handle *evdev_connect(struct input_handler *handler, struct
evdev_table[minor] = evdev;
class_device_create(&input_class, &dev->cdev,
cdev = class_device_create(&input_class, &dev->cdev,
MKDEV(INPUT_MAJOR, EVDEV_MINOR_BASE + minor),
dev->cdev.dev, "event%d", minor);
dev->cdev.dev, evdev->name);
/* temporary symlink to keep userspace happy */
sysfs_create_link(&input_class.subsys.kset.kobj, &cdev->kobj,
evdev->name);
return &evdev->handle;
}
@ -698,6 +703,7 @@ static void evdev_disconnect(struct input_handle *handle)
struct evdev *evdev = handle->private;
struct evdev_list *list;
sysfs_remove_link(&input_class.subsys.kset.kobj, evdev->name);
class_device_destroy(&input_class,
MKDEV(INPUT_MAJOR, EVDEV_MINOR_BASE + evdev->minor));
evdev->exist = 0;

10
drivers/input/joydev.c
View File

@ -448,6 +448,7 @@ static struct file_operations joydev_fops = {
static struct input_handle *joydev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
{
struct joydev *joydev;
struct class_device *cdev;
int i, j, t, minor;
for (minor = 0; minor < JOYDEV_MINORS && joydev_table[minor]; minor++);
@ -513,9 +514,13 @@ static struct input_handle *joydev_connect(struct input_handler *handler, struct
joydev_table[minor] = joydev;
class_device_create(&input_class, &dev->cdev,
cdev = class_device_create(&input_class, &dev->cdev,
MKDEV(INPUT_MAJOR, JOYDEV_MINOR_BASE + minor),
dev->cdev.dev, "js%d", minor);
dev->cdev.dev, joydev->name);
/* temporary symlink to keep userspace happy */
sysfs_create_link(&input_class.subsys.kset.kobj, &cdev->kobj,
joydev->name);
return &joydev->handle;
}
@ -525,6 +530,7 @@ static void joydev_disconnect(struct input_handle *handle)
struct joydev *joydev = handle->private;
struct joydev_list *list;
sysfs_remove_link(&input_class.subsys.kset.kobj, joydev->name);
class_device_destroy(&input_class, MKDEV(INPUT_MAJOR, JOYDEV_MINOR_BASE + joydev->minor));
joydev->exist = 0;

10
drivers/input/mousedev.c
View File

@ -620,6 +620,7 @@ static struct file_operations mousedev_fops = {
static struct input_handle *mousedev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
{
struct mousedev *mousedev;
struct class_device *cdev;
int minor = 0;
for (minor = 0; minor < MOUSEDEV_MINORS && mousedev_table[minor]; minor++);
@ -648,9 +649,13 @@ static struct input_handle *mousedev_connect(struct input_handler *handler, stru
mousedev_table[minor] = mousedev;
class_device_create(&input_class, &dev->cdev,
cdev = class_device_create(&input_class, &dev->cdev,
MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + minor),
dev->cdev.dev, "mouse%d", minor);
dev->cdev.dev, mousedev->name);
/* temporary symlink to keep userspace happy */
sysfs_create_link(&input_class.subsys.kset.kobj, &cdev->kobj,
mousedev->name);
return &mousedev->handle;
}
@ -660,6 +665,7 @@ static void mousedev_disconnect(struct input_handle *handle)
struct mousedev *mousedev = handle->private;
struct mousedev_list *list;
sysfs_remove_link(&input_class.subsys.kset.kobj, mousedev->name);
class_device_destroy(&input_class,
MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + mousedev->minor));
mousedev->exist = 0;

10
drivers/input/tsdev.c
View File

@ -368,6 +368,7 @@ static struct input_handle *tsdev_connect(struct input_handler *handler,
struct input_device_id *id)
{
struct tsdev *tsdev;
struct class_device *cdev;
int minor, delta;
for (minor = 0; minor < TSDEV_MINORS/2 && tsdev_table[minor];
@ -409,9 +410,13 @@ static struct input_handle *tsdev_connect(struct input_handler *handler,
tsdev_table[minor] = tsdev;
class_device_create(&input_class, &dev->cdev,
cdev = class_device_create(&input_class, &dev->cdev,
MKDEV(INPUT_MAJOR, TSDEV_MINOR_BASE + minor),
dev->cdev.dev, "ts%d", minor);
dev->cdev.dev, tsdev->name);
/* temporary symlink to keep userspace happy */
sysfs_create_link(&input_class.subsys.kset.kobj, &cdev->kobj,
tsdev->name);
return &tsdev->handle;
}
@ -421,6 +426,7 @@ static void tsdev_disconnect(struct input_handle *handle)
struct tsdev *tsdev = handle->private;
struct tsdev_list *list;
sysfs_remove_link(&input_class.subsys.kset.kobj, tsdev->name);
class_device_destroy(&input_class,
MKDEV(INPUT_MAJOR, TSDEV_MINOR_BASE + tsdev->minor));
tsdev->exist = 0;