Messages in this thread Patch in this message | | | Subject | Suspend2 merge: 2/51: Find class by name | From | Nigel Cunningham <> | Date | Wed, 24 Nov 2004 23:56:57 +1100 |
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A second patch that shouldn't be needed but is at the moment. It is used to find any framebuffer drivers and add put them in the kept-alive device tree. Once Pavel's improvements to the PM_ states are merged, I hope this will be able to go away.
Not sure if would be helpful elsewhere?
diff -ruN 207-find-class-by-name-old/drivers/base/class.c 207-find-class-by-name-new/drivers/base/class.c --- 207-find-class-by-name-old/drivers/base/class.c 2004-11-24 09:52:56.000000000 +1100 +++ 207-find-class-by-name-new/drivers/base/class.c 2004-11-24 17:20:21.385685896 +1100 @@ -497,6 +497,25 @@ kobject_put(&class_dev->kobj); } +struct class * class_find(char * name) +{ + struct class * this_class; + + if (!name) + return NULL; + + down_read(&class_subsys.rwsem); + list_for_each_entry(this_class, &class_subsys.kset.list, subsys.kset.kobj.entry) { + if (!(strcmp(this_class->name, name))) { + class_get(this_class); + up_read(&class_subsys.rwsem); + return this_class; + } + } + up_read(&class_subsys.rwsem); + + return NULL; +} int class_interface_register(struct class_interface *class_intf) { @@ -579,3 +598,5 @@ EXPORT_SYMBOL_GPL(class_interface_register); EXPORT_SYMBOL_GPL(class_interface_unregister); + +EXPORT_SYMBOL_GPL(class_find); diff -ruN 207-find-class-by-name-old/include/linux/device.h 207-find-class-by-name-new/include/linux/device.h --- 207-find-class-by-name-old/include/linux/device.h 2004-11-24 17:20:41.583615344 +1100 +++ 207-find-class-by-name-new/include/linux/device.h 2004-11-24 17:19:56.510467504 +1100 @@ -164,6 +164,7 @@ extern struct class * class_get(struct class *); extern void class_put(struct class *); +extern struct class * class_find(char * name);
struct class_attribute {
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