diff options
| author | Jon Smirl <jonsmirl@yahoo.com> | 2004-02-01 23:39:32 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <greg@kroah.com> | 2004-02-01 23:39:32 -0800 |
| commit | 0eb9b18eb108a9d169084ee154155041f413e945 (patch) | |
| tree | 4f1dc133fc8a756f4cf91a93c9b93078b85eb753 | |
| parent | b1c76c1cb272f5dedf0264a58904b544c6ce56fb (diff) | |
[PATCH] Driver core: add hotplug support for class_simple
This is needed by the DRI code.
| -rw-r--r-- | drivers/base/class_simple.c | 18 | ||||
| -rw-r--r-- | include/linux/device.h | 2 |
2 files changed, 20 insertions, 0 deletions
diff --git a/drivers/base/class_simple.c b/drivers/base/class_simple.c index bb29e34bd2e5..53548e0ed544 100644 --- a/drivers/base/class_simple.c +++ b/drivers/base/class_simple.c @@ -170,6 +170,24 @@ error: EXPORT_SYMBOL(class_simple_device_add); /** + * class_simple_set_hotplug - set the hotplug callback in the embedded struct class + * @cs: pointer to the struct class_simple to hold the pointer + * @hotplug: function pointer to the hotplug function + * + * Implement and set a hotplug function to add environment variables specific to this + * class on the hotplug event. + */ +int class_simple_set_hotplug(struct class_simple *cs, + int (*hotplug)(struct class_device *dev, char **envp, int num_envp, char *buffer, int buffer_size)) +{ + if ((cs == NULL) || (IS_ERR(cs))) + return -ENODEV; + cs->class.hotplug = hotplug; + return 0; +} +EXPORT_SYMBOL(class_simple_set_hotplug); + +/** * class_simple_device_remove - removes a class device that was created with class_simple_device_add() * @dev: the dev_t of the device that was previously registered. * diff --git a/include/linux/device.h b/include/linux/device.h index 367b21888ad4..c8f5aa7d9f5a 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -253,6 +253,8 @@ extern struct class_simple *class_simple_create(struct module *owner, char *name extern void class_simple_destroy(struct class_simple *cs); extern struct class_device *class_simple_device_add(struct class_simple *cs, dev_t dev, struct device *device, const char *fmt, ...) __attribute__((format(printf,4,5))); +extern int class_simple_set_hotplug(struct class_simple *, + int (*hotplug)(struct class_device *dev, char **envp, int num_envp, char *buffer, int buffer_size)); extern void class_simple_device_remove(dev_t dev); |