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[CLASS DEVICE]: add attribute_group creation

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Extend the support of attribute groups in class_device's to allow
groups to be created as part of the registration process. This allows
network device's to avoid race between registration and creating
groups.

Note that unlike attributes that are a property of the class object,
the groups are a property of the class_device object. This is done
because there are different types of network devices (wireless for
example).

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger
2006-05-06 17:55:11 -07:00
committed by David S. Miller
parent 5528e568a7
commit 1498221d51
2 changed files with 34 additions and 0 deletions
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include/linux/device.h
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@ -200,6 +200,7 @@ extern int class_device_create_file(struct class_device *,
* @node: for internal use by the driver core only.
* @kobj: for internal use by the driver core only.
* @devt_attr: for internal use by the driver core only.
* @groups: optional additional groups to be created
* @dev: if set, a symlink to the struct device is created in the sysfs
* directory for this struct class device.
* @class_data: pointer to whatever you want to store here for this struct
@ -228,6 +229,7 @@ struct class_device {
struct device * dev; /* not necessary, but nice to have */
void * class_data; /* class-specific data */
struct class_device *parent; /* parent of this child device, if there is one */
struct attribute_group ** groups; /* optional groups */
void (*release)(struct class_device *dev);
int (*uevent)(struct class_device *dev, char **envp,