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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 <trenn@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Thomas Renninger 2007-07-23 14:43:51 +02:00 • committed by Len Brown
parent 8c8eb78f67
commit 29b71a1ca7
5 changed files with 142 additions and 52 deletions
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12
scripts/mod/file2alias.c
View file

@ -290,6 +290,14 @@ static int do_serio_entry(const char *filename,
return 1;
}
/* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */
static int do_acpi_entry(const char *filename,
struct acpi_device_id *id, char *alias)
{
sprintf(alias, "acpi*:%s:", id->id);
return 1;
}
/* looks like: "pnp:dD" */
static int do_pnp_entry(const char *filename,
struct pnp_device_id *id, char *alias)
@ -551,6 +559,10 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
do_table(symval, sym->st_size,
sizeof(struct serio_device_id), "serio",
do_serio_entry, mod);
else if (sym_is(symname, "__mod_acpi_device_table"))
do_table(symval, sym->st_size,
sizeof(struct acpi_device_id), "acpi",
do_acpi_entry, mod);
else if (sym_is(symname, "__mod_pnp_device_table"))
do_table(symval, sym->st_size,
sizeof(struct pnp_device_id), "pnp",