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Driver core: create devices/virtual/ tree

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This change creates a devices/virtual/CLASS_NAME tree for struct devices
that belong to a class, yet do not have a "real" struct device for a
parent.  It automatically creates the directories on the fly as needed.


Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman
2006-08-07 22:19:37 -07:00
parent a2de48cace
commit c205ef4880
3 changed files with 28 additions and 1 deletions
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5
include/linux/device.h
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@@ -149,6 +149,8 @@ struct class {
struct list_head interfaces;
struct semaphore sem; /* locks both the children and interfaces lists */
struct kobject *virtual_dir;
struct class_attribute * class_attrs;
struct class_device_attribute * class_dev_attrs;
struct device_attribute * dev_attrs;
@@ -291,7 +293,6 @@ extern struct class_device *class_device_create(struct class *cls,
__attribute__((format(printf,5,6)));
extern void class_device_destroy(struct class *cls, dev_t devt);
/* interface for exporting device attributes */
struct device_attribute {
struct attribute attr;
@@ -400,6 +401,8 @@ extern struct device *device_create(struct class *cls, struct device *parent,
__attribute__((format(printf,4,5)));
extern void device_destroy(struct class *cls, dev_t devt);
extern int virtual_device_parent(struct device *dev);
/*
* Platform "fixup" functions - allow the platform to have their say
* about devices and actions that the general device layer doesn't