mirror of https://gitee.com/openkylin/linux.git
virtio: configuration change callback
Various drivers want to know when their configuration information changes: the balloon driver is the immediate user, but the network driver may one day have a "carrier" status as well. This introduces that callback (lguest doesn't use it yet). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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@ -98,12 +98,15 @@ void unregister_virtio_device(struct virtio_device *dev);
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* @probe: the function to call when a device is found. Returns a token for
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* remove, or PTR_ERR().
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* @remove: the function when a device is removed.
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* @config_changed: optional function to call when the device configuration
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* changes; may be called in interrupt context.
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*/
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struct virtio_driver {
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struct device_driver driver;
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const struct virtio_device_id *id_table;
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int (*probe)(struct virtio_device *dev);
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void (*remove)(struct virtio_device *dev);
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void (*config_changed)(struct virtio_device *dev);
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};
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int register_virtio_driver(struct virtio_driver *drv);
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