Non-Surprise Removal

The non-surprise removal interrupt requests the bus driver to enable the device removal from the bus. This is discussed at length above (in the Surprise Removalsection). The difference between surprise and non-surprise removal is that in non-surprise removal, the bus driver requests the normal device shutdown service (DEV_SHUTDOWN) rather than the device removal service ( DEV_REMOVAL).

In addition, once the device tree is updated, the bus driver enables the device removal. Device removal enabling is usually signaled by an LED, and/or by a card ejection mechanism.