diff options
Diffstat (limited to 'drivers/acpi/battery.c')
| -rw-r--r-- | drivers/acpi/battery.c | 400 |
1 files changed, 183 insertions, 217 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index c55feca9b7d..702e857e98c 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -34,7 +34,6 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> - #define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF #define ACPI_BATTERY_FORMAT_BIF "NNNNNNNNNSSSS" @@ -53,87 +52,85 @@ #define ACPI_BATTERY_UNITS_WATTS "mW" #define ACPI_BATTERY_UNITS_AMPS "mA" - #define _COMPONENT ACPI_BATTERY_COMPONENT -ACPI_MODULE_NAME ("acpi_battery") +ACPI_MODULE_NAME("acpi_battery") -MODULE_AUTHOR("Paul Diefenbaugh"); + MODULE_AUTHOR("Paul Diefenbaugh"); MODULE_DESCRIPTION(ACPI_BATTERY_DRIVER_NAME); MODULE_LICENSE("GPL"); -static int acpi_battery_add (struct acpi_device *device); -static int acpi_battery_remove (struct acpi_device *device, int type); +static int acpi_battery_add(struct acpi_device *device); +static int acpi_battery_remove(struct acpi_device *device, int type); static struct acpi_driver acpi_battery_driver = { - .name = ACPI_BATTERY_DRIVER_NAME, - .class = ACPI_BATTERY_CLASS, - .ids = ACPI_BATTERY_HID, - .ops = { - .add = acpi_battery_add, - .remove = acpi_battery_remove, - }, + .name = ACPI_BATTERY_DRIVER_NAME, + .class = ACPI_BATTERY_CLASS, + .ids = ACPI_BATTERY_HID, + .ops = { + .add = acpi_battery_add, + .remove = acpi_battery_remove, + }, }; struct acpi_battery_status { - acpi_integer state; - acpi_integer present_rate; - acpi_integer remaining_capacity; - acpi_integer present_voltage; + acpi_integer state; + acpi_integer present_rate; + acpi_integer remaining_capacity; + acpi_integer present_voltage; }; struct acpi_battery_info { - acpi_integer power_unit; - acpi_integer design_capacity; - acpi_integer last_full_capacity; - acpi_integer battery_technology; - acpi_integer design_voltage; - acpi_integer design_capacity_warning; - acpi_integer design_capacity_low; - acpi_integer battery_capacity_granularity_1; - acpi_integer battery_capacity_granularity_2; - acpi_string model_number; - acpi_string serial_number; - acpi_string battery_type; - acpi_string oem_info; + acpi_integer power_unit; + acpi_integer design_capacity; + acpi_integer last_full_capacity; + acpi_integer battery_technology; + acpi_integer design_voltage; + acpi_integer design_capacity_warning; + acpi_integer design_capacity_low; + acpi_integer battery_capacity_granularity_1; + acpi_integer battery_capacity_granularity_2; + acpi_string model_number; + acpi_string serial_number; + acpi_string battery_type; + acpi_string oem_info; }; struct acpi_battery_flags { - u8 present:1; /* Bay occupied? */ - u8 power_unit:1; /* 0=watts, 1=apms */ - u8 alarm:1; /* _BTP present? */ - u8 reserved:5; + u8 present:1; /* Bay occupied? */ + u8 power_unit:1; /* 0=watts, 1=apms */ + u8 alarm:1; /* _BTP present? */ + u8 reserved:5; }; struct acpi_battery_trips { - unsigned long warning; - unsigned long low; + unsigned long warning; + unsigned long low; }; struct acpi_battery { - acpi_handle handle; + acpi_handle handle; struct acpi_battery_flags flags; struct acpi_battery_trips trips; - unsigned long alarm; + unsigned long alarm; struct acpi_battery_info *info; }; - /* -------------------------------------------------------------------------- Battery Management -------------------------------------------------------------------------- */ static int -acpi_battery_get_info ( - struct acpi_battery *battery, - struct acpi_battery_info **bif) +acpi_battery_get_info(struct acpi_battery *battery, + struct acpi_battery_info **bif) { - int result = 0; - acpi_status status = 0; - struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; - struct acpi_buffer format = {sizeof(ACPI_BATTERY_FORMAT_BIF), - ACPI_BATTERY_FORMAT_BIF}; - struct acpi_buffer data = {0, NULL}; - union acpi_object *package = NULL; + int result = 0; + acpi_status status = 0; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + struct acpi_buffer format = { sizeof(ACPI_BATTERY_FORMAT_BIF), + ACPI_BATTERY_FORMAT_BIF + }; + struct acpi_buffer data = { 0, NULL }; + union acpi_object *package = NULL; ACPI_FUNCTION_TRACE("acpi_battery_get_info"); @@ -148,7 +145,7 @@ acpi_battery_get_info ( return_VALUE(-ENODEV); } - package = (union acpi_object *) buffer.pointer; + package = (union acpi_object *)buffer.pointer; /* Extract Package Data */ @@ -174,27 +171,27 @@ acpi_battery_get_info ( goto end; } -end: + end: acpi_os_free(buffer.pointer); if (!result) - (*bif) = (struct acpi_battery_info *) data.pointer; + (*bif) = (struct acpi_battery_info *)data.pointer; return_VALUE(result); } static int -acpi_battery_get_status ( - struct acpi_battery *battery, - struct acpi_battery_status **bst) +acpi_battery_get_status(struct acpi_battery *battery, + struct acpi_battery_status **bst) { - int result = 0; - acpi_status status = 0; - struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; - struct acpi_buffer format = {sizeof(ACPI_BATTERY_FORMAT_BST), - ACPI_BATTERY_FORMAT_BST}; - struct acpi_buffer data = {0, NULL}; - union acpi_object *package = NULL; + int result = 0; + acpi_status status = 0; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + struct acpi_buffer format = { sizeof(ACPI_BATTERY_FORMAT_BST), + ACPI_BATTERY_FORMAT_BST + }; + struct acpi_buffer data = { 0, NULL }; + union acpi_object *package = NULL; ACPI_FUNCTION_TRACE("acpi_battery_get_status"); @@ -209,7 +206,7 @@ acpi_battery_get_status ( return_VALUE(-ENODEV); } - package = (union acpi_object *) buffer.pointer; + package = (union acpi_object *)buffer.pointer; /* Extract Package Data */ @@ -235,24 +232,21 @@ acpi_battery_get_status ( goto end; } -end: + end: acpi_os_free(buffer.pointer); if (!result) - (*bst) = (struct acpi_battery_status *) data.pointer; + (*bst) = (struct acpi_battery_status *)data.pointer; return_VALUE(result); } - static int -acpi_battery_set_alarm ( - struct acpi_battery *battery, - unsigned long alarm) +acpi_battery_set_alarm(struct acpi_battery *battery, unsigned long alarm) { - acpi_status status = 0; - union acpi_object arg0 = {ACPI_TYPE_INTEGER}; - struct acpi_object_list arg_list = {1, &arg0}; + acpi_status status = 0; + union acpi_object arg0 = { ACPI_TYPE_INTEGER }; + struct acpi_object_list arg_list = { 1, &arg0 }; ACPI_FUNCTION_TRACE("acpi_battery_set_alarm"); @@ -275,19 +269,16 @@ acpi_battery_set_alarm ( return_VALUE(0); } - -static int -acpi_battery_check ( - struct acpi_battery *battery) +static int acpi_battery_check(struct acpi_battery *battery) { - int result = 0; - acpi_status status = AE_OK; - acpi_handle handle = NULL; - struct acpi_device *device = NULL; + int result = 0; + acpi_status status = AE_OK; + acpi_handle handle = NULL; + struct acpi_device *device = NULL; struct acpi_battery_info *bif = NULL; ACPI_FUNCTION_TRACE("acpi_battery_check"); - + if (!battery) return_VALUE(-EINVAL); @@ -336,18 +327,17 @@ acpi_battery_check ( return_VALUE(result); } - /* -------------------------------------------------------------------------- FS Interface (/proc) -------------------------------------------------------------------------- */ -static struct proc_dir_entry *acpi_battery_dir; +static struct proc_dir_entry *acpi_battery_dir; static int acpi_battery_read_info(struct seq_file *seq, void *offset) { - int result = 0; - struct acpi_battery *battery = (struct acpi_battery *) seq->private; + int result = 0; + struct acpi_battery *battery = (struct acpi_battery *)seq->private; struct acpi_battery_info *bif = NULL; - char *units = "?"; + char *units = "?"; ACPI_FUNCTION_TRACE("acpi_battery_read_info"); @@ -369,19 +359,21 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset) goto end; } - units = bif->power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS; - + units = + bif-> + power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS; + if (bif->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN) seq_printf(seq, "design capacity: unknown\n"); else seq_printf(seq, "design capacity: %d %sh\n", - (u32) bif->design_capacity, units); + (u32) bif->design_capacity, units); if (bif->last_full_capacity == ACPI_BATTERY_VALUE_UNKNOWN) seq_printf(seq, "last full capacity: unknown\n"); else seq_printf(seq, "last full capacity: %d %sh\n", - (u32) bif->last_full_capacity, units); + (u32) bif->last_full_capacity, units); switch ((u32) bif->battery_technology) { case 0: @@ -399,26 +391,22 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset) seq_printf(seq, "design voltage: unknown\n"); else seq_printf(seq, "design voltage: %d mV\n", - (u32) bif->design_voltage); - + (u32) bif->design_voltage); + seq_printf(seq, "design capacity warning: %d %sh\n", - (u32) bif->design_capacity_warning, units); + (u32) bif->design_capacity_warning, units); seq_printf(seq, "design capacity low: %d %sh\n", - (u32) bif->design_capacity_low, units); + (u32) bif->design_capacity_low, units); seq_printf(seq, "capacity granularity 1: %d %sh\n", - (u32) bif->battery_capacity_granularity_1, units); + (u32) bif->battery_capacity_granularity_1, units); seq_printf(seq, "capacity granularity 2: %d %sh\n", - (u32) bif->battery_capacity_granularity_2, units); - seq_printf(seq, "model number: %s\n", - bif->model_number); - seq_printf(seq, "serial number: %s\n", - bif->serial_number); - seq_printf(seq, "battery type: %s\n", - bif->battery_type); - seq_printf(seq, "OEM info: %s\n", - bif->oem_info); - -end: + (u32) bif->battery_capacity_granularity_2, units); + seq_printf(seq, "model number: %s\n", bif->model_number); + seq_printf(seq, "serial number: %s\n", bif->serial_number); + seq_printf(seq, "battery type: %s\n", bif->battery_type); + seq_printf(seq, "OEM info: %s\n", bif->oem_info); + + end: kfree(bif); return_VALUE(0); @@ -429,14 +417,12 @@ static int acpi_battery_info_open_fs(struct inode *inode, struct file *file) return single_open(file, acpi_battery_read_info, PDE(inode)->data); } - -static int -acpi_battery_read_state (struct seq_file *seq, void *offset) +static int acpi_battery_read_state(struct seq_file *seq, void *offset) { - int result = 0; - struct acpi_battery *battery = (struct acpi_battery *) seq->private; + int result = 0; + struct acpi_battery *battery = (struct acpi_battery *)seq->private; struct acpi_battery_status *bst = NULL; - char *units = "?"; + char *units = "?"; ACPI_FUNCTION_TRACE("acpi_battery_read_state"); @@ -452,7 +438,9 @@ acpi_battery_read_state (struct seq_file *seq, void *offset) /* Battery Units */ - units = battery->flags.power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS; + units = + battery->flags. + power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS; /* Battery Status (_BST) */ @@ -467,12 +455,12 @@ acpi_battery_read_state (struct seq_file *seq, void *offset) else seq_printf(seq, "capacity state: critical\n"); - if ((bst->state & 0x01) && (bst->state & 0x02)){ - seq_printf(seq, "charging state: charging/discharging\n"); - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Battery Charging and Discharging?\n")); - } - else if (bst->state & 0x01) + if ((bst->state & 0x01) && (bst->state & 0x02)) { + seq_printf(seq, + "charging state: charging/discharging\n"); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Battery Charging and Discharging?\n")); + } else if (bst->state & 0x01) seq_printf(seq, "charging state: discharging\n"); else if (bst->state & 0x02) seq_printf(seq, "charging state: charging\n"); @@ -484,21 +472,21 @@ acpi_battery_read_state (struct seq_file *seq, void *offset) seq_printf(seq, "present rate: unknown\n"); else seq_printf(seq, "present rate: %d %s\n", - (u32) bst->present_rate, units); + (u32) bst->present_rate, units); if (bst->remaining_capacity == ACPI_BATTERY_VALUE_UNKNOWN) seq_printf(seq, "remaining capacity: unknown\n"); else seq_printf(seq, "remaining capacity: %d %sh\n", - (u32) bst->remaining_capacity, units); + (u32) bst->remaining_capacity, units); if (bst->present_voltage == ACPI_BATTERY_VALUE_UNKNOWN) seq_printf(seq, "present voltage: unknown\n"); else seq_printf(seq, "present voltage: %d mV\n", - (u32) bst->present_voltage); + (u32) bst->present_voltage); -end: + end: kfree(bst); return_VALUE(0); @@ -509,12 +497,10 @@ static int acpi_battery_state_open_fs(struct inode *inode, struct file *file) return single_open(file, acpi_battery_read_state, PDE(inode)->data); } - -static int -acpi_battery_read_alarm (struct seq_file *seq, void *offset) +static int acpi_battery_read_alarm(struct seq_file *seq, void *offset) { - struct acpi_battery *battery = (struct acpi_battery *) seq->private; - char *units = "?"; + struct acpi_battery *battery = (struct acpi_battery *)seq->private; + char *units = "?"; ACPI_FUNCTION_TRACE("acpi_battery_read_alarm"); @@ -527,8 +513,10 @@ acpi_battery_read_alarm (struct seq_file *seq, void *offset) } /* Battery Units */ - - units = battery->flags.power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS; + + units = + battery->flags. + power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS; /* Battery Alarm */ @@ -538,22 +526,19 @@ acpi_battery_read_alarm (struct seq_file *seq, void *offset) else seq_printf(seq, "%d %sh\n", (u32) battery->alarm, units); -end: + end: return_VALUE(0); } - static ssize_t -acpi_battery_write_alarm ( - struct file *file, - const char __user *buffer, - size_t count, - loff_t *ppos) +acpi_battery_write_alarm(struct file *file, + const char __user * buffer, + size_t count, loff_t * ppos) { - int result = 0; - char alarm_string[12] = {'\0'}; - struct seq_file *m = (struct seq_file *)file->private_data; - struct acpi_battery *battery = (struct acpi_battery *)m->private; + int result = 0; + char alarm_string[12] = { '\0' }; + struct seq_file *m = (struct seq_file *)file->private_data; + struct acpi_battery *battery = (struct acpi_battery *)m->private; ACPI_FUNCTION_TRACE("acpi_battery_write_alarm"); @@ -565,11 +550,11 @@ acpi_battery_write_alarm ( if (copy_from_user(alarm_string, buffer, count)) return_VALUE(-EFAULT); - + alarm_string[count] = '\0'; - result = acpi_battery_set_alarm(battery, - simple_strtoul(alarm_string, NULL, 0)); + result = acpi_battery_set_alarm(battery, + simple_strtoul(alarm_string, NULL, 0)); if (result) return_VALUE(result); @@ -582,41 +567,39 @@ static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file) } static struct file_operations acpi_battery_info_ops = { - .open = acpi_battery_info_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, + .open = acpi_battery_info_open_fs, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, .owner = THIS_MODULE, }; static struct file_operations acpi_battery_state_ops = { - .open = acpi_battery_state_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, + .open = acpi_battery_state_open_fs, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, .owner = THIS_MODULE, }; static struct file_operations acpi_battery_alarm_ops = { - .open = acpi_battery_alarm_open_fs, - .read = seq_read, - .write = acpi_battery_write_alarm, - .llseek = seq_lseek, - .release = single_release, + .open = acpi_battery_alarm_open_fs, + .read = seq_read, + .write = acpi_battery_write_alarm, + .llseek = seq_lseek, + .release = single_release, .owner = THIS_MODULE, }; -static int -acpi_battery_add_fs ( - struct acpi_device *device) +static int acpi_battery_add_fs(struct acpi_device *device) { - struct proc_dir_entry *entry = NULL; + struct proc_dir_entry *entry = NULL; ACPI_FUNCTION_TRACE("acpi_battery_add_fs"); if (!acpi_device_dir(device)) { acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), - acpi_battery_dir); + acpi_battery_dir); if (!acpi_device_dir(device)) return_VALUE(-ENODEV); acpi_device_dir(device)->owner = THIS_MODULE; @@ -624,24 +607,24 @@ acpi_battery_add_fs ( /* 'info' [R] */ entry = create_proc_entry(ACPI_BATTERY_FILE_INFO, - S_IRUGO, acpi_device_dir(device)); + S_IRUGO, acpi_device_dir(device)); if (!entry) ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Unable to create '%s' fs entry\n", - ACPI_BATTERY_FILE_INFO)); + "Unable to create '%s' fs entry\n", + ACPI_BATTERY_FILE_INFO)); else { - entry->proc_fops = &acpi_battery_info_ops; + entry->proc_fops = &acpi_battery_info_ops; entry->data = acpi_driver_data(device); entry->owner = THIS_MODULE; } /* 'status' [R] */ entry = create_proc_entry(ACPI_BATTERY_FILE_STATUS, - S_IRUGO, acpi_device_dir(device)); + S_IRUGO, acpi_device_dir(device)); if (!entry) ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Unable to create '%s' fs entry\n", - ACPI_BATTERY_FILE_STATUS)); + "Unable to create '%s' fs entry\n", + ACPI_BATTERY_FILE_STATUS)); else { entry->proc_fops = &acpi_battery_state_ops; entry->data = acpi_driver_data(device); @@ -650,11 +633,12 @@ acpi_battery_add_fs ( /* 'alarm' [R/W] */ entry = create_proc_entry(ACPI_BATTERY_FILE_ALARM, - S_IFREG|S_IRUGO|S_IWUSR, acpi_device_dir(device)); + S_IFREG | S_IRUGO | S_IWUSR, + acpi_device_dir(device)); if (!entry) ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Unable to create '%s' fs entry\n", - ACPI_BATTERY_FILE_ALARM)); + "Unable to create '%s' fs entry\n", + ACPI_BATTERY_FILE_ALARM)); else { entry->proc_fops = &acpi_battery_alarm_ops; entry->data = acpi_driver_data(device); @@ -664,10 +648,7 @@ acpi_battery_add_fs ( return_VALUE(0); } - -static int -acpi_battery_remove_fs ( - struct acpi_device *device) +static int acpi_battery_remove_fs(struct acpi_device *device) { ACPI_FUNCTION_TRACE("acpi_battery_remove_fs"); @@ -686,19 +667,14 @@ acpi_battery_remove_fs ( return_VALUE(0); } - /* -------------------------------------------------------------------------- Driver Interface -------------------------------------------------------------------------- */ -static void -acpi_battery_notify ( - acpi_handle handle, - u32 event, - void *data) +static void acpi_battery_notify(acpi_handle handle, u32 event, void *data) { - struct acpi_battery *battery = (struct acpi_battery *) data; - struct acpi_device *device = NULL; + struct acpi_battery *battery = (struct acpi_battery *)data; + struct acpi_device *device = NULL; ACPI_FUNCTION_TRACE("acpi_battery_notify"); @@ -716,24 +692,21 @@ acpi_battery_notify ( break; default: ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Unsupported event [0x%x]\n", event)); + "Unsupported event [0x%x]\n", event)); break; } return_VOID; } - -static int -acpi_battery_add ( - struct acpi_device *device) +static int acpi_battery_add(struct acpi_device *device) { - int result = 0; - acpi_status status = 0; - struct acpi_battery *battery = NULL; + int result = 0; + acpi_status status = 0; + struct acpi_battery *battery = NULL; ACPI_FUNCTION_TRACE("acpi_battery_add"); - + if (!device) return_VALUE(-EINVAL); @@ -756,19 +729,20 @@ acpi_battery_add ( goto end; status = acpi_install_notify_handler(battery->handle, - ACPI_DEVICE_NOTIFY, acpi_battery_notify, battery); + ACPI_DEVICE_NOTIFY, + acpi_battery_notify, battery); if (ACPI_FAILURE(status)) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Error installing notify handler\n")); + "Error installing notify handler\n")); result = -ENODEV; goto end; } printk(KERN_INFO PREFIX "%s Slot [%s] (battery %s)\n", - ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device), - device->status.battery_present?"present":"absent"); - -end: + ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device), + device->status.battery_present ? "present" : "absent"); + + end: if (result) { acpi_battery_remove_fs(device); kfree(battery); @@ -777,27 +751,24 @@ end: return_VALUE(result); } - -static int -acpi_battery_remove ( - struct acpi_device *device, - int type) +static int acpi_battery_remove(struct acpi_device *device, int type) { - acpi_status status = 0; - struct acpi_battery *battery = NULL; + acpi_status status = 0; + struct acpi_battery *battery = NULL; ACPI_FUNCTION_TRACE("acpi_battery_remove"); if (!device || !acpi_driver_data(device)) return_VALUE(-EINVAL); - battery = (struct acpi_battery *) acpi_driver_data(device); + battery = (struct acpi_battery *)acpi_driver_data(device); status = acpi_remove_notify_handler(battery->handle, - ACPI_DEVICE_NOTIFY, acpi_battery_notify); + ACPI_DEVICE_NOTIFY, + acpi_battery_notify); if (ACPI_FAILURE(status)) ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Error removing notify handler\n")); + "Error removing notify handler\n")); acpi_battery_remove_fs(device); @@ -806,11 +777,9 @@ acpi_battery_remove ( return_VALUE(0); } - -static int __init -acpi_battery_init (void) +static int __init acpi_battery_init(void) { - int result = 0; + int result = 0; ACPI_FUNCTION_TRACE("acpi_battery_init"); @@ -828,9 +797,7 @@ acpi_battery_init (void) return_VALUE(0); } - -static void __exit -acpi_battery_exit (void) +static void __exit acpi_battery_exit(void) { ACPI_FUNCTION_TRACE("acpi_battery_exit"); @@ -841,6 +808,5 @@ acpi_battery_exit (void) return_VOID; } - module_init(acpi_battery_init); module_exit(acpi_battery_exit); |