Commit f957d1f0 authored by Rusty Russell's avatar Rusty Russell

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: default avatarRusty Russell <rusty@rustcorp.com.au>
parent 18445c4d
......@@ -98,12 +98,15 @@ void unregister_virtio_device(struct virtio_device *dev);
* @probe: the function to call when a device is found. Returns a token for
* remove, or PTR_ERR().
* @remove: the function when a device is removed.
* @config_changed: optional function to call when the device configuration
* changes; may be called in interrupt context.
*/
struct virtio_driver {
struct device_driver driver;
const struct virtio_device_id *id_table;
int (*probe)(struct virtio_device *dev);
void (*remove)(struct virtio_device *dev);
void (*config_changed)(struct virtio_device *dev);
};
int register_virtio_driver(struct virtio_driver *drv);
......
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