In one embodiment of the invention, an embedded controller receives an interrupt command and a query number from a system management interrupt (SMI) handler. The embedded controller generates a system control interrupt (SCI) in response to the interrupt command. A driver that receives the SCI issues...http://www.google.fr/patents/US6792491?utm_source=gb-gplus-shareBrevet US6792491 - Invoking ACPI source language code from interrupt handler
Invoking ACPI source language code from interrupt handler