forked from luck/tmp_suning_uos_patched
823bccfc40
We need to work on cleaning up the relationship between kobjects, ksets and ktypes. The removal of 'struct subsystem' is the first step of this, especially as it is not really needed at all. Thanks to Kay for fixing the bugs in this patch. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
/*
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* Interface for power-management for ppc64 compliant platform
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*
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* Manish Ahuja <mahuja@us.ibm.com>
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*
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* Feb 2007
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*
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* Copyright (C) 2007 IBM Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/kobject.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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unsigned long rtas_poweron_auto; /* default and normal state is 0 */
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static ssize_t auto_poweron_show(struct kset *kset, char *buf)
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{
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return sprintf(buf, "%lu\n", rtas_poweron_auto);
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}
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static ssize_t
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auto_poweron_store(struct kset *kset, const char *buf, size_t n)
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{
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int ret;
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unsigned long ups_restart;
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ret = sscanf(buf, "%lu", &ups_restart);
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if ((ret == 1) && ((ups_restart == 1) || (ups_restart == 0))){
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rtas_poweron_auto = ups_restart;
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return n;
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}
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return -EINVAL;
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}
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static struct subsys_attribute auto_poweron_attr = {
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.attr = {
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.name = __stringify(auto_poweron),
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.mode = 0644,
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},
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.show = auto_poweron_show,
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.store = auto_poweron_store,
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};
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#ifndef CONFIG_PM
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decl_subsys(power,NULL,NULL);
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static struct attribute *g[] = {
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&auto_poweron_attr.attr,
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NULL,
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};
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static struct attribute_group attr_group = {
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.attrs = g,
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};
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static int __init pm_init(void)
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{
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int error = subsystem_register(&power_subsys);
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if (!error)
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error = sysfs_create_group(&power_subsys.kobj, &attr_group);
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return error;
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}
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core_initcall(pm_init);
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#else
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extern struct kset power_subsys;
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static int __init apo_pm_init(void)
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{
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return (subsys_create_file(&power_subsys, &auto_poweron_attr));
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}
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__initcall(apo_pm_init);
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#endif
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