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ACPI: autoload modules - Create ACPI alias interface

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Modify modpost (file2alias.c) to add acpi*:XYZ0001: alias in modules.alias
like:
grep acpi /lib/modules/2.6.22-rc4-default/modules.alias
alias acpi*:SNY5001:* sony_laptop
alias acpi*:SNY6001:* sony_laptop
for e.g. the sony_laptop module.
This module matches against all ACPI devices with a HID or CID of SNY5001
or SNY6001

Export an uevent and modalias sysfs file containing the string:
[MODALIAS=]acpi:PNP0C0C:
additional CIDs are concatenated at the end.

Signed-off-by: Thomas Renninger <[email protected]>
Signed-off-by: Kay Sievers <[email protected]>
Signed-off-by: Len Brown <[email protected]>
This commit is contained in:
Thomas Renninger 2007-07-23 14:43:51 +02:00 • committed by Len Brown
commit 29b71a1ca7
5 changed files with 142 additions and 52 deletions
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19
drivers/pnp/pnpacpi/core.c
View file

@ -21,7 +21,10 @@
#include <linux/acpi.h>
#include <linux/pnp.h>
#include <linux/mod_devicetable.h>
#include <acpi/acpi_bus.h>
#include <acpi/actypes.h>
#include "pnpacpi.h"
static int num = 0;
@ -33,15 +36,17 @@ static int num = 0;
* have irqs (PIC, Timer) because we call acpi_register_gsi.
* Finaly only devices that have a CRS method need to be in this list.
*/
static char __initdata excluded_id_list[] =
"PNP0C09," /* EC */
"PNP0C0F," /* Link device */
"PNP0000," /* PIC */
"PNP0100," /* Timer */
;
static __initdata struct acpi_device_id excluded_id_list[] ={
{"PNP0C09", 0}, /* EC */
{"PNP0C0F", 0}, /* Link device */
{"PNP0000", 0}, /* PIC */
{"PNP0100", 0}, /* Timer */
{"", 0},
};
static inline int is_exclusive_device(struct acpi_device *dev)
{
return (!acpi_match_ids(dev, excluded_id_list));
return (!acpi_match_device_ids(dev, excluded_id_list));
}
/*