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ACPI: allow drivers to request both device and system notify events

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System notify events (0x00-0x7f) are common across all device types
and should be handled in Linux/ACPI, not in drivers.  However, some
BIOSes use system notify events in device-specific ways that require
the driver to be involved.

This patch adds a ACPI_DRIVER_ALL_NOTIFY_EVENTS driver flag.  When a
driver sets this flag and supplies a .notify method, Linux/ACPI calls
the .notify method for ALL notify events on the device, not just the
device-specific (0x80-0xff) events.

Signed-off-by: Bjorn Helgaas <[email protected]>
Signed-off-by: Len Brown <[email protected]>
This commit is contained in:
Bjorn Helgaas 2009-04-30 09:35:37 -06:00 • committed by Len Brown
commit 6d27813100
2 changed files with 8 additions and 1 deletions
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3
include/acpi/acpi_bus.h
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@ -114,10 +114,13 @@ struct acpi_device_ops {
acpi_op_notify notify;
};
#define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */
struct acpi_driver {
char name[80];
char class[80];
const struct acpi_device_id *ids; /* Supported Hardware IDs */
unsigned int flags;
struct acpi_device_ops ops;
struct device_driver drv;
struct module *owner;