mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-24 09:50:04 +00:00
![Greg Kroah-Hartman](/assets/img/avatar_default.png)
There are currently 2 ways to create a set of sysfs files for a
kobj_type, through the default_attrs field, and the default_groups
field. Move the ACPI sysfs code to use default_groups field which has
been the preferred way since aa30f47cf6
("kobject: Add support for
default attribute groups to kobj_type") so that we can soon get rid of
the obsolete default_attrs field.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
648 lines
16 KiB
C
648 lines
16 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* drivers/acpi/device_sysfs.c - ACPI device sysfs attributes and modalias.
|
|
*
|
|
* Copyright (C) 2015, Intel Corp.
|
|
* Author: Mika Westerberg <mika.westerberg@linux.intel.com>
|
|
* Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
|
*
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
*
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
*/
|
|
|
|
#include <linux/acpi.h>
|
|
#include <linux/device.h>
|
|
#include <linux/export.h>
|
|
#include <linux/nls.h>
|
|
|
|
#include "internal.h"
|
|
|
|
static ssize_t acpi_object_path(acpi_handle handle, char *buf)
|
|
{
|
|
struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL};
|
|
int result;
|
|
|
|
result = acpi_get_name(handle, ACPI_FULL_PATHNAME, &path);
|
|
if (result)
|
|
return result;
|
|
|
|
result = sprintf(buf, "%s\n", (char *)path.pointer);
|
|
kfree(path.pointer);
|
|
return result;
|
|
}
|
|
|
|
struct acpi_data_node_attr {
|
|
struct attribute attr;
|
|
ssize_t (*show)(struct acpi_data_node *, char *);
|
|
ssize_t (*store)(struct acpi_data_node *, const char *, size_t count);
|
|
};
|
|
|
|
#define DATA_NODE_ATTR(_name) \
|
|
static struct acpi_data_node_attr data_node_##_name = \
|
|
__ATTR(_name, 0444, data_node_show_##_name, NULL)
|
|
|
|
static ssize_t data_node_show_path(struct acpi_data_node *dn, char *buf)
|
|
{
|
|
return dn->handle ? acpi_object_path(dn->handle, buf) : 0;
|
|
}
|
|
|
|
DATA_NODE_ATTR(path);
|
|
|
|
static struct attribute *acpi_data_node_default_attrs[] = {
|
|
&data_node_path.attr,
|
|
NULL
|
|
};
|
|
ATTRIBUTE_GROUPS(acpi_data_node_default);
|
|
|
|
#define to_data_node(k) container_of(k, struct acpi_data_node, kobj)
|
|
#define to_attr(a) container_of(a, struct acpi_data_node_attr, attr)
|
|
|
|
static ssize_t acpi_data_node_attr_show(struct kobject *kobj,
|
|
struct attribute *attr, char *buf)
|
|
{
|
|
struct acpi_data_node *dn = to_data_node(kobj);
|
|
struct acpi_data_node_attr *dn_attr = to_attr(attr);
|
|
|
|
return dn_attr->show ? dn_attr->show(dn, buf) : -ENXIO;
|
|
}
|
|
|
|
static const struct sysfs_ops acpi_data_node_sysfs_ops = {
|
|
.show = acpi_data_node_attr_show,
|
|
};
|
|
|
|
static void acpi_data_node_release(struct kobject *kobj)
|
|
{
|
|
struct acpi_data_node *dn = to_data_node(kobj);
|
|
|
|
complete(&dn->kobj_done);
|
|
}
|
|
|
|
static struct kobj_type acpi_data_node_ktype = {
|
|
.sysfs_ops = &acpi_data_node_sysfs_ops,
|
|
.default_groups = acpi_data_node_default_groups,
|
|
.release = acpi_data_node_release,
|
|
};
|
|
|
|
static void acpi_expose_nondev_subnodes(struct kobject *kobj,
|
|
struct acpi_device_data *data)
|
|
{
|
|
struct list_head *list = &data->subnodes;
|
|
struct acpi_data_node *dn;
|
|
|
|
if (list_empty(list))
|
|
return;
|
|
|
|
list_for_each_entry(dn, list, sibling) {
|
|
int ret;
|
|
|
|
init_completion(&dn->kobj_done);
|
|
ret = kobject_init_and_add(&dn->kobj, &acpi_data_node_ktype,
|
|
kobj, "%s", dn->name);
|
|
if (!ret)
|
|
acpi_expose_nondev_subnodes(&dn->kobj, &dn->data);
|
|
else if (dn->handle)
|
|
acpi_handle_err(dn->handle, "Failed to expose (%d)\n", ret);
|
|
}
|
|
}
|
|
|
|
static void acpi_hide_nondev_subnodes(struct acpi_device_data *data)
|
|
{
|
|
struct list_head *list = &data->subnodes;
|
|
struct acpi_data_node *dn;
|
|
|
|
if (list_empty(list))
|
|
return;
|
|
|
|
list_for_each_entry_reverse(dn, list, sibling) {
|
|
acpi_hide_nondev_subnodes(&dn->data);
|
|
kobject_put(&dn->kobj);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* create_pnp_modalias - Create hid/cid(s) string for modalias and uevent
|
|
* @acpi_dev: ACPI device object.
|
|
* @modalias: Buffer to print into.
|
|
* @size: Size of the buffer.
|
|
*
|
|
* Creates hid/cid(s) string needed for modalias and uevent
|
|
* e.g. on a device with hid:IBM0001 and cid:ACPI0001 you get:
|
|
* char *modalias: "acpi:IBM0001:ACPI0001"
|
|
* Return: 0: no _HID and no _CID
|
|
* -EINVAL: output error
|
|
* -ENOMEM: output is truncated
|
|
*/
|
|
static int create_pnp_modalias(struct acpi_device *acpi_dev, char *modalias,
|
|
int size)
|
|
{
|
|
int len;
|
|
int count;
|
|
struct acpi_hardware_id *id;
|
|
|
|
/* Avoid unnecessarily loading modules for non present devices. */
|
|
if (!acpi_device_is_present(acpi_dev))
|
|
return 0;
|
|
|
|
/*
|
|
* Since we skip ACPI_DT_NAMESPACE_HID from the modalias below, 0 should
|
|
* be returned if ACPI_DT_NAMESPACE_HID is the only ACPI/PNP ID in the
|
|
* device's list.
|
|
*/
|
|
count = 0;
|
|
list_for_each_entry(id, &acpi_dev->pnp.ids, list)
|
|
if (strcmp(id->id, ACPI_DT_NAMESPACE_HID))
|
|
count++;
|
|
|
|
if (!count)
|
|
return 0;
|
|
|
|
len = snprintf(modalias, size, "acpi:");
|
|
if (len <= 0)
|
|
return len;
|
|
|
|
size -= len;
|
|
|
|
list_for_each_entry(id, &acpi_dev->pnp.ids, list) {
|
|
if (!strcmp(id->id, ACPI_DT_NAMESPACE_HID))
|
|
continue;
|
|
|
|
count = snprintf(&modalias[len], size, "%s:", id->id);
|
|
if (count < 0)
|
|
return -EINVAL;
|
|
|
|
if (count >= size)
|
|
return -ENOMEM;
|
|
|
|
len += count;
|
|
size -= count;
|
|
}
|
|
modalias[len] = '\0';
|
|
return len;
|
|
}
|
|
|
|
/**
|
|
* create_of_modalias - Creates DT compatible string for modalias and uevent
|
|
* @acpi_dev: ACPI device object.
|
|
* @modalias: Buffer to print into.
|
|
* @size: Size of the buffer.
|
|
*
|
|
* Expose DT compatible modalias as of:NnameTCcompatible. This function should
|
|
* only be called for devices having ACPI_DT_NAMESPACE_HID in their list of
|
|
* ACPI/PNP IDs.
|
|
*/
|
|
static int create_of_modalias(struct acpi_device *acpi_dev, char *modalias,
|
|
int size)
|
|
{
|
|
struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER };
|
|
const union acpi_object *of_compatible, *obj;
|
|
acpi_status status;
|
|
int len, count;
|
|
int i, nval;
|
|
char *c;
|
|
|
|
status = acpi_get_name(acpi_dev->handle, ACPI_SINGLE_NAME, &buf);
|
|
if (ACPI_FAILURE(status))
|
|
return -ENODEV;
|
|
|
|
/* DT strings are all in lower case */
|
|
for (c = buf.pointer; *c != '\0'; c++)
|
|
*c = tolower(*c);
|
|
|
|
len = snprintf(modalias, size, "of:N%sT", (char *)buf.pointer);
|
|
ACPI_FREE(buf.pointer);
|
|
|
|
if (len <= 0)
|
|
return len;
|
|
|
|
of_compatible = acpi_dev->data.of_compatible;
|
|
if (of_compatible->type == ACPI_TYPE_PACKAGE) {
|
|
nval = of_compatible->package.count;
|
|
obj = of_compatible->package.elements;
|
|
} else { /* Must be ACPI_TYPE_STRING. */
|
|
nval = 1;
|
|
obj = of_compatible;
|
|
}
|
|
for (i = 0; i < nval; i++, obj++) {
|
|
count = snprintf(&modalias[len], size, "C%s",
|
|
obj->string.pointer);
|
|
if (count < 0)
|
|
return -EINVAL;
|
|
|
|
if (count >= size)
|
|
return -ENOMEM;
|
|
|
|
len += count;
|
|
size -= count;
|
|
}
|
|
modalias[len] = '\0';
|
|
return len;
|
|
}
|
|
|
|
int __acpi_device_uevent_modalias(struct acpi_device *adev,
|
|
struct kobj_uevent_env *env)
|
|
{
|
|
int len;
|
|
|
|
if (!adev)
|
|
return -ENODEV;
|
|
|
|
if (list_empty(&adev->pnp.ids))
|
|
return 0;
|
|
|
|
if (add_uevent_var(env, "MODALIAS="))
|
|
return -ENOMEM;
|
|
|
|
if (adev->data.of_compatible)
|
|
len = create_of_modalias(adev, &env->buf[env->buflen - 1],
|
|
sizeof(env->buf) - env->buflen);
|
|
else
|
|
len = create_pnp_modalias(adev, &env->buf[env->buflen - 1],
|
|
sizeof(env->buf) - env->buflen);
|
|
if (len < 0)
|
|
return len;
|
|
|
|
env->buflen += len;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* acpi_device_uevent_modalias - uevent modalias for ACPI-enumerated devices.
|
|
* @dev: Struct device to get ACPI device node.
|
|
* @env: Environment variables of the kobject uevent.
|
|
*
|
|
* Create the uevent modalias field for ACPI-enumerated devices.
|
|
*
|
|
* Because other buses do not support ACPI HIDs & CIDs, e.g. for a device with
|
|
* hid:IBM0001 and cid:ACPI0001 you get: "acpi:IBM0001:ACPI0001".
|
|
*/
|
|
int acpi_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env)
|
|
{
|
|
return __acpi_device_uevent_modalias(acpi_companion_match(dev), env);
|
|
}
|
|
EXPORT_SYMBOL_GPL(acpi_device_uevent_modalias);
|
|
|
|
static int __acpi_device_modalias(struct acpi_device *adev, char *buf, int size)
|
|
{
|
|
int len, count;
|
|
|
|
if (!adev)
|
|
return -ENODEV;
|
|
|
|
if (list_empty(&adev->pnp.ids))
|
|
return 0;
|
|
|
|
len = create_pnp_modalias(adev, buf, size - 1);
|
|
if (len < 0) {
|
|
return len;
|
|
} else if (len > 0) {
|
|
buf[len++] = '\n';
|
|
size -= len;
|
|
}
|
|
if (!adev->data.of_compatible)
|
|
return len;
|
|
|
|
count = create_of_modalias(adev, buf + len, size - 1);
|
|
if (count < 0) {
|
|
return count;
|
|
} else if (count > 0) {
|
|
len += count;
|
|
buf[len++] = '\n';
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
/**
|
|
* acpi_device_modalias - modalias sysfs attribute for ACPI-enumerated devices.
|
|
* @dev: Struct device to get ACPI device node.
|
|
* @buf: The buffer to save pnp_modalias and of_modalias.
|
|
* @size: Size of buffer.
|
|
*
|
|
* Create the modalias sysfs attribute for ACPI-enumerated devices.
|
|
*
|
|
* Because other buses do not support ACPI HIDs & CIDs, e.g. for a device with
|
|
* hid:IBM0001 and cid:ACPI0001 you get: "acpi:IBM0001:ACPI0001".
|
|
*/
|
|
int acpi_device_modalias(struct device *dev, char *buf, int size)
|
|
{
|
|
return __acpi_device_modalias(acpi_companion_match(dev), buf, size);
|
|
}
|
|
EXPORT_SYMBOL_GPL(acpi_device_modalias);
|
|
|
|
static ssize_t
|
|
modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
return __acpi_device_modalias(to_acpi_device(dev), buf, 1024);
|
|
}
|
|
static DEVICE_ATTR_RO(modalias);
|
|
|
|
static ssize_t real_power_state_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct acpi_device *adev = to_acpi_device(dev);
|
|
int state;
|
|
int ret;
|
|
|
|
ret = acpi_device_get_power(adev, &state);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return sprintf(buf, "%s\n", acpi_power_state_string(state));
|
|
}
|
|
|
|
static DEVICE_ATTR_RO(real_power_state);
|
|
|
|
static ssize_t power_state_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct acpi_device *adev = to_acpi_device(dev);
|
|
|
|
return sprintf(buf, "%s\n", acpi_power_state_string(adev->power.state));
|
|
}
|
|
|
|
static DEVICE_ATTR_RO(power_state);
|
|
|
|
static ssize_t
|
|
eject_store(struct device *d, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct acpi_device *acpi_device = to_acpi_device(d);
|
|
acpi_object_type not_used;
|
|
acpi_status status;
|
|
|
|
if (!count || buf[0] != '1')
|
|
return -EINVAL;
|
|
|
|
if ((!acpi_device->handler || !acpi_device->handler->hotplug.enabled)
|
|
&& !acpi_device->driver)
|
|
return -ENODEV;
|
|
|
|
status = acpi_get_type(acpi_device->handle, ¬_used);
|
|
if (ACPI_FAILURE(status) || !acpi_device->flags.ejectable)
|
|
return -ENODEV;
|
|
|
|
acpi_dev_get(acpi_device);
|
|
status = acpi_hotplug_schedule(acpi_device, ACPI_OST_EC_OSPM_EJECT);
|
|
if (ACPI_SUCCESS(status))
|
|
return count;
|
|
|
|
acpi_dev_put(acpi_device);
|
|
acpi_evaluate_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT,
|
|
ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL);
|
|
return status == AE_NO_MEMORY ? -ENOMEM : -EAGAIN;
|
|
}
|
|
|
|
static DEVICE_ATTR_WO(eject);
|
|
|
|
static ssize_t
|
|
hid_show(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
|
|
|
return sprintf(buf, "%s\n", acpi_device_hid(acpi_dev));
|
|
}
|
|
static DEVICE_ATTR_RO(hid);
|
|
|
|
static ssize_t uid_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
|
|
|
return sprintf(buf, "%s\n", acpi_dev->pnp.unique_id);
|
|
}
|
|
static DEVICE_ATTR_RO(uid);
|
|
|
|
static ssize_t adr_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
|
|
|
if (acpi_dev->pnp.bus_address > U32_MAX)
|
|
return sprintf(buf, "0x%016llx\n", acpi_dev->pnp.bus_address);
|
|
else
|
|
return sprintf(buf, "0x%08llx\n", acpi_dev->pnp.bus_address);
|
|
}
|
|
static DEVICE_ATTR_RO(adr);
|
|
|
|
static ssize_t path_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
|
|
|
return acpi_object_path(acpi_dev->handle, buf);
|
|
}
|
|
static DEVICE_ATTR_RO(path);
|
|
|
|
/* sysfs file that shows description text from the ACPI _STR method */
|
|
static ssize_t description_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
|
int result;
|
|
|
|
if (acpi_dev->pnp.str_obj == NULL)
|
|
return 0;
|
|
|
|
/*
|
|
* The _STR object contains a Unicode identifier for a device.
|
|
* We need to convert to utf-8 so it can be displayed.
|
|
*/
|
|
result = utf16s_to_utf8s(
|
|
(wchar_t *)acpi_dev->pnp.str_obj->buffer.pointer,
|
|
acpi_dev->pnp.str_obj->buffer.length,
|
|
UTF16_LITTLE_ENDIAN, buf,
|
|
PAGE_SIZE - 1);
|
|
|
|
buf[result++] = '\n';
|
|
|
|
return result;
|
|
}
|
|
static DEVICE_ATTR_RO(description);
|
|
|
|
static ssize_t
|
|
sun_show(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
|
acpi_status status;
|
|
unsigned long long sun;
|
|
|
|
status = acpi_evaluate_integer(acpi_dev->handle, "_SUN", NULL, &sun);
|
|
if (ACPI_FAILURE(status))
|
|
return -EIO;
|
|
|
|
return sprintf(buf, "%llu\n", sun);
|
|
}
|
|
static DEVICE_ATTR_RO(sun);
|
|
|
|
static ssize_t
|
|
hrv_show(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
|
acpi_status status;
|
|
unsigned long long hrv;
|
|
|
|
status = acpi_evaluate_integer(acpi_dev->handle, "_HRV", NULL, &hrv);
|
|
if (ACPI_FAILURE(status))
|
|
return -EIO;
|
|
|
|
return sprintf(buf, "%llu\n", hrv);
|
|
}
|
|
static DEVICE_ATTR_RO(hrv);
|
|
|
|
static ssize_t status_show(struct device *dev, struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
|
acpi_status status;
|
|
unsigned long long sta;
|
|
|
|
status = acpi_evaluate_integer(acpi_dev->handle, "_STA", NULL, &sta);
|
|
if (ACPI_FAILURE(status))
|
|
return -EIO;
|
|
|
|
return sprintf(buf, "%llu\n", sta);
|
|
}
|
|
static DEVICE_ATTR_RO(status);
|
|
|
|
/**
|
|
* acpi_device_setup_files - Create sysfs attributes of an ACPI device.
|
|
* @dev: ACPI device object.
|
|
*/
|
|
int acpi_device_setup_files(struct acpi_device *dev)
|
|
{
|
|
struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
|
|
acpi_status status;
|
|
int result = 0;
|
|
|
|
/*
|
|
* Devices gotten from FADT don't have a "path" attribute
|
|
*/
|
|
if (dev->handle) {
|
|
result = device_create_file(&dev->dev, &dev_attr_path);
|
|
if (result)
|
|
goto end;
|
|
}
|
|
|
|
if (!list_empty(&dev->pnp.ids)) {
|
|
result = device_create_file(&dev->dev, &dev_attr_hid);
|
|
if (result)
|
|
goto end;
|
|
|
|
result = device_create_file(&dev->dev, &dev_attr_modalias);
|
|
if (result)
|
|
goto end;
|
|
}
|
|
|
|
/*
|
|
* If device has _STR, 'description' file is created
|
|
*/
|
|
if (acpi_has_method(dev->handle, "_STR")) {
|
|
status = acpi_evaluate_object(dev->handle, "_STR",
|
|
NULL, &buffer);
|
|
if (ACPI_FAILURE(status))
|
|
buffer.pointer = NULL;
|
|
dev->pnp.str_obj = buffer.pointer;
|
|
result = device_create_file(&dev->dev, &dev_attr_description);
|
|
if (result)
|
|
goto end;
|
|
}
|
|
|
|
if (dev->pnp.type.bus_address)
|
|
result = device_create_file(&dev->dev, &dev_attr_adr);
|
|
if (dev->pnp.unique_id)
|
|
result = device_create_file(&dev->dev, &dev_attr_uid);
|
|
|
|
if (acpi_has_method(dev->handle, "_SUN")) {
|
|
result = device_create_file(&dev->dev, &dev_attr_sun);
|
|
if (result)
|
|
goto end;
|
|
}
|
|
|
|
if (acpi_has_method(dev->handle, "_HRV")) {
|
|
result = device_create_file(&dev->dev, &dev_attr_hrv);
|
|
if (result)
|
|
goto end;
|
|
}
|
|
|
|
if (acpi_has_method(dev->handle, "_STA")) {
|
|
result = device_create_file(&dev->dev, &dev_attr_status);
|
|
if (result)
|
|
goto end;
|
|
}
|
|
|
|
/*
|
|
* If device has _EJ0, 'eject' file is created that is used to trigger
|
|
* hot-removal function from userland.
|
|
*/
|
|
if (acpi_has_method(dev->handle, "_EJ0")) {
|
|
result = device_create_file(&dev->dev, &dev_attr_eject);
|
|
if (result)
|
|
return result;
|
|
}
|
|
|
|
if (dev->flags.power_manageable) {
|
|
result = device_create_file(&dev->dev, &dev_attr_power_state);
|
|
if (result)
|
|
return result;
|
|
|
|
if (dev->power.flags.power_resources)
|
|
result = device_create_file(&dev->dev,
|
|
&dev_attr_real_power_state);
|
|
}
|
|
|
|
acpi_expose_nondev_subnodes(&dev->dev.kobj, &dev->data);
|
|
|
|
end:
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* acpi_device_remove_files - Remove sysfs attributes of an ACPI device.
|
|
* @dev: ACPI device object.
|
|
*/
|
|
void acpi_device_remove_files(struct acpi_device *dev)
|
|
{
|
|
acpi_hide_nondev_subnodes(&dev->data);
|
|
|
|
if (dev->flags.power_manageable) {
|
|
device_remove_file(&dev->dev, &dev_attr_power_state);
|
|
if (dev->power.flags.power_resources)
|
|
device_remove_file(&dev->dev,
|
|
&dev_attr_real_power_state);
|
|
}
|
|
|
|
/*
|
|
* If device has _STR, remove 'description' file
|
|
*/
|
|
if (acpi_has_method(dev->handle, "_STR")) {
|
|
kfree(dev->pnp.str_obj);
|
|
device_remove_file(&dev->dev, &dev_attr_description);
|
|
}
|
|
/*
|
|
* If device has _EJ0, remove 'eject' file.
|
|
*/
|
|
if (acpi_has_method(dev->handle, "_EJ0"))
|
|
device_remove_file(&dev->dev, &dev_attr_eject);
|
|
|
|
if (acpi_has_method(dev->handle, "_SUN"))
|
|
device_remove_file(&dev->dev, &dev_attr_sun);
|
|
|
|
if (acpi_has_method(dev->handle, "_HRV"))
|
|
device_remove_file(&dev->dev, &dev_attr_hrv);
|
|
|
|
if (dev->pnp.unique_id)
|
|
device_remove_file(&dev->dev, &dev_attr_uid);
|
|
if (dev->pnp.type.bus_address)
|
|
device_remove_file(&dev->dev, &dev_attr_adr);
|
|
device_remove_file(&dev->dev, &dev_attr_modalias);
|
|
device_remove_file(&dev->dev, &dev_attr_hid);
|
|
if (acpi_has_method(dev->handle, "_STA"))
|
|
device_remove_file(&dev->dev, &dev_attr_status);
|
|
if (dev->handle)
|
|
device_remove_file(&dev->dev, &dev_attr_path);
|
|
}
|