static int acpi_battery_add(struct acpi_device *device);
static int acpi_battery_remove(struct acpi_device *device, int type);
+static int acpi_battery_resume(struct acpi_device *device, int status);
static struct acpi_driver acpi_battery_driver = {
.name = ACPI_BATTERY_DRIVER_NAME,
.ids = ACPI_BATTERY_HID,
.ops = {
.add = acpi_battery_add,
+ .resume = acpi_battery_resume,
.remove = acpi_battery_remove,
},
};
return single_open(file, acpi_battery_read_alarm, PDE(inode)->data);
}
-static struct file_operations acpi_battery_info_ops = {
+static const struct file_operations acpi_battery_info_ops = {
.open = acpi_battery_info_open_fs,
.read = seq_read,
.llseek = seq_lseek,
.owner = THIS_MODULE,
};
-static struct file_operations acpi_battery_state_ops = {
+static const struct file_operations acpi_battery_state_ops = {
.open = acpi_battery_state_open_fs,
.read = seq_read,
.llseek = seq_lseek,
.owner = THIS_MODULE,
};
-static struct file_operations acpi_battery_alarm_ops = {
+static const struct file_operations acpi_battery_alarm_ops = {
.open = acpi_battery_alarm_open_fs,
.read = seq_read,
.write = acpi_battery_write_alarm,
return 0;
}
+/* this is needed to learn about changes made in suspended state */
+static int acpi_battery_resume(struct acpi_device *device, int state)
+{
+ struct acpi_battery *battery;
+
+ if (!device)
+ return -EINVAL;
+
+ battery = device->driver_data;
+ return acpi_battery_check(battery);
+}
+
static int __init acpi_battery_init(void)
{
int result;
+ if (acpi_disabled)
+ return -ENODEV;
+
acpi_battery_dir = acpi_lock_battery_dir();
if (!acpi_battery_dir)
return -ENODEV;