[mirror_ubuntu-jammy-kernel.git] / drivers / platform / chrome / cros_ec_sysfs.c

/*
 * cros_ec_sysfs - expose the Chrome OS EC through sysfs
 *
 * Copyright (C) 2014 Google, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#define pr_fmt(fmt) "cros_ec_sysfs: " fmt

#include <linux/ctype.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/fs.h>
#include <linux/kobject.h>
#include <linux/mfd/cros_ec.h>
#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/printk.h>
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/types.h>
#include <linux/uaccess.h>

/* Accessor functions */

static ssize_t show_ec_reboot(struct device *dev,
			      struct device_attribute *attr, char *buf)
{
	int count = 0;

	count += scnprintf(buf + count, PAGE_SIZE - count,
			   "ro|rw|cancel|cold|disable-jump|hibernate");
	count += scnprintf(buf + count, PAGE_SIZE - count,
			   " [at-shutdown]\n");
	return count;
}

static ssize_t store_ec_reboot(struct device *dev,
			       struct device_attribute *attr,
			       const char *buf, size_t count)
{
	static const struct {
		const char * const str;
		uint8_t cmd;
		uint8_t flags;
	} words[] = {
		{"cancel",       EC_REBOOT_CANCEL, 0},
		{"ro",           EC_REBOOT_JUMP_RO, 0},
		{"rw",           EC_REBOOT_JUMP_RW, 0},
		{"cold",         EC_REBOOT_COLD, 0},
		{"disable-jump", EC_REBOOT_DISABLE_JUMP, 0},
		{"hibernate",    EC_REBOOT_HIBERNATE, 0},
		{"at-shutdown",  -1, EC_REBOOT_FLAG_ON_AP_SHUTDOWN},
	};
	struct cros_ec_command *msg;
	struct ec_params_reboot_ec *param;
	int got_cmd = 0, offset = 0;
	int i;
	int ret;
	struct cros_ec_dev *ec = container_of(dev,
					      struct cros_ec_dev, class_dev);

	msg = kmalloc(sizeof(*msg) + sizeof(*param), GFP_KERNEL);
	if (!msg)
		return -ENOMEM;

	param = (struct ec_params_reboot_ec *)msg->data;

	param->flags = 0;
	while (1) {
		/* Find word to start scanning */
		while (buf[offset] && isspace(buf[offset]))
			offset++;
		if (!buf[offset])
			break;

		for (i = 0; i < ARRAY_SIZE(words); i++) {
			if (!strncasecmp(words[i].str, buf+offset,
					 strlen(words[i].str))) {
				if (words[i].flags) {
					param->flags |= words[i].flags;
				} else {
					param->cmd = words[i].cmd;
					got_cmd = 1;
				}
				break;
			}
		}

		/* On to the next word, if any */
		while (buf[offset] && !isspace(buf[offset]))
			offset++;
	}

	if (!got_cmd) {
		count = -EINVAL;
		goto exit;
	}

	msg->version = 0;
	msg->command = EC_CMD_REBOOT_EC + ec->cmd_offset;
	msg->outsize = sizeof(*param);
	msg->insize = 0;
	ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
	if (ret < 0) {
		count = ret;
		goto exit;
	}
	if (msg->result != EC_RES_SUCCESS) {
		dev_dbg(ec->dev, "EC result %d\n", msg->result);
		count = -EINVAL;
	}
exit:
	kfree(msg);
	return count;
}

static ssize_t show_ec_version(struct device *dev,
			       struct device_attribute *attr, char *buf)
{
	static const char * const image_names[] = {"unknown", "RO", "RW"};
	struct ec_response_get_version *r_ver;
	struct ec_response_get_chip_info *r_chip;
	struct ec_response_board_version *r_board;
	struct cros_ec_command *msg;
	int ret;
	int count = 0;
	struct cros_ec_dev *ec = container_of(dev,
					      struct cros_ec_dev, class_dev);

	msg = kmalloc(sizeof(*msg) + EC_HOST_PARAM_SIZE, GFP_KERNEL);
	if (!msg)
		return -ENOMEM;

	/* Get versions. RW may change. */
	msg->version = 0;
	msg->command = EC_CMD_GET_VERSION + ec->cmd_offset;
	msg->insize = sizeof(*r_ver);
	msg->outsize = 0;
	ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
	if (ret < 0) {
		count = ret;
		goto exit;
	}
	if (msg->result != EC_RES_SUCCESS) {
		count = scnprintf(buf, PAGE_SIZE,
				  "ERROR: EC returned %d\n", msg->result);
		goto exit;
	}

	r_ver = (struct ec_response_get_version *)msg->data;
	/* Strings should be null-terminated, but let's be sure. */
	r_ver->version_string_ro[sizeof(r_ver->version_string_ro) - 1] = '\0';
	r_ver->version_string_rw[sizeof(r_ver->version_string_rw) - 1] = '\0';
	count += scnprintf(buf + count, PAGE_SIZE - count,
			   "RO version:    %s\n", r_ver->version_string_ro);
	count += scnprintf(buf + count, PAGE_SIZE - count,
			   "RW version:    %s\n", r_ver->version_string_rw);
	count += scnprintf(buf + count, PAGE_SIZE - count,
			   "Firmware copy: %s\n",
			   (r_ver->current_image < ARRAY_SIZE(image_names) ?
			    image_names[r_ver->current_image] : "?"));

	/* Get build info. */
	msg->command = EC_CMD_GET_BUILD_INFO + ec->cmd_offset;
	msg->insize = EC_HOST_PARAM_SIZE;
	ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
	if (ret < 0)
		count += scnprintf(buf + count, PAGE_SIZE - count,
				   "Build info:    XFER ERROR %d\n", ret);
	else if (msg->result != EC_RES_SUCCESS)
		count += scnprintf(buf + count, PAGE_SIZE - count,
				   "Build info:    EC error %d\n", msg->result);
	else {
		msg->data[sizeof(msg->data) - 1] = '\0';
		count += scnprintf(buf + count, PAGE_SIZE - count,
				   "Build info:    %s\n", msg->data);
	}

	/* Get chip info. */
	msg->command = EC_CMD_GET_CHIP_INFO + ec->cmd_offset;
	msg->insize = sizeof(*r_chip);
	ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
	if (ret < 0)
		count += scnprintf(buf + count, PAGE_SIZE - count,
				   "Chip info:     XFER ERROR %d\n", ret);
	else if (msg->result != EC_RES_SUCCESS)
		count += scnprintf(buf + count, PAGE_SIZE - count,
				   "Chip info:     EC error %d\n", msg->result);
	else {
		r_chip = (struct ec_response_get_chip_info *)msg->data;

		r_chip->vendor[sizeof(r_chip->vendor) - 1] = '\0';
		r_chip->name[sizeof(r_chip->name) - 1] = '\0';
		r_chip->revision[sizeof(r_chip->revision) - 1] = '\0';
		count += scnprintf(buf + count, PAGE_SIZE - count,
				   "Chip vendor:   %s\n", r_chip->vendor);
		count += scnprintf(buf + count, PAGE_SIZE - count,
				   "Chip name:     %s\n", r_chip->name);
		count += scnprintf(buf + count, PAGE_SIZE - count,
				   "Chip revision: %s\n", r_chip->revision);
	}

	/* Get board version */
	msg->command = EC_CMD_GET_BOARD_VERSION + ec->cmd_offset;
	msg->insize = sizeof(*r_board);
	ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
	if (ret < 0)
		count += scnprintf(buf + count, PAGE_SIZE - count,
				   "Board version: XFER ERROR %d\n", ret);
	else if (msg->result != EC_RES_SUCCESS)
		count += scnprintf(buf + count, PAGE_SIZE - count,
				   "Board version: EC error %d\n", msg->result);
	else {
		r_board = (struct ec_response_board_version *)msg->data;

		count += scnprintf(buf + count, PAGE_SIZE - count,
				   "Board version: %d\n",
				   r_board->board_version);
	}

exit:
	kfree(msg);
	return count;
}

static ssize_t show_ec_flashinfo(struct device *dev,
				 struct device_attribute *attr, char *buf)
{
	struct ec_response_flash_info *resp;
	struct cros_ec_command *msg;
	int ret;
	struct cros_ec_dev *ec = container_of(dev,
					      struct cros_ec_dev, class_dev);

	msg = kmalloc(sizeof(*msg) + sizeof(*resp), GFP_KERNEL);
	if (!msg)
		return -ENOMEM;

	/* The flash info shouldn't ever change, but ask each time anyway. */
	msg->version = 0;
	msg->command = EC_CMD_FLASH_INFO + ec->cmd_offset;
	msg->insize = sizeof(*resp);
	msg->outsize = 0;
	ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
	if (ret < 0)
		goto exit;
	if (msg->result != EC_RES_SUCCESS) {
		ret = scnprintf(buf, PAGE_SIZE,
				"ERROR: EC returned %d\n", msg->result);
		goto exit;
	}

	resp = (struct ec_response_flash_info *)msg->data;

	ret = scnprintf(buf, PAGE_SIZE,
			"FlashSize %d\nWriteSize %d\n"
			"EraseSize %d\nProtectSize %d\n",
			resp->flash_size, resp->write_block_size,
			resp->erase_block_size, resp->protect_block_size);
exit:
	kfree(msg);
	return ret;
}

/* Module initialization */

static DEVICE_ATTR(reboot, S_IWUSR | S_IRUGO, show_ec_reboot, store_ec_reboot);
static DEVICE_ATTR(version, S_IRUGO, show_ec_version, NULL);
static DEVICE_ATTR(flashinfo, S_IRUGO, show_ec_flashinfo, NULL);

static struct attribute *__ec_attrs[] = {
	&dev_attr_reboot.attr,
	&dev_attr_version.attr,
	&dev_attr_flashinfo.attr,
	NULL,
};

struct attribute_group cros_ec_attr_group = {
	.attrs = __ec_attrs,
};
EXPORT_SYMBOL(cros_ec_attr_group);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("ChromeOS EC control driver");
Commit	Line	Data
71af4b52 BR	1	/*
	2	* cros_ec_sysfs - expose the Chrome OS EC through sysfs
	3	*
	4	* Copyright (C) 2014 Google, Inc.
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	18	*/
	19
	20	#define pr_fmt(fmt) "cros_ec_sysfs: " fmt
	21
	22	#include <linux/ctype.h>
	23	#include <linux/delay.h>
	24	#include <linux/device.h>
	25	#include <linux/fs.h>
	26	#include <linux/kobject.h>
	27	#include <linux/mfd/cros_ec.h>
	28	#include <linux/mfd/cros_ec_commands.h>
	29	#include <linux/module.h>
	30	#include <linux/platform_device.h>
	31	#include <linux/printk.h>
a8411784	32	#include <linux/slab.h>
71af4b52 BR	33	#include <linux/stat.h>
	34	#include <linux/types.h>
	35	#include <linux/uaccess.h>
	36
71af4b52 BR	37	/* Accessor functions */
	38
	39	static ssize_t show_ec_reboot(struct device *dev,
	40	struct device_attribute attr, char buf)
	41	{
	42	int count = 0;
	43
	44	count += scnprintf(buf + count, PAGE_SIZE - count,
	45	"ro\|rw\|cancel\|cold\|disable-jump\|hibernate");
	46	count += scnprintf(buf + count, PAGE_SIZE - count,
	47	" [at-shutdown]\n");
	48	return count;
	49	}
	50
	51	static ssize_t store_ec_reboot(struct device *dev,
	52	struct device_attribute *attr,
	53	const char *buf, size_t count)
	54	{
	55	static const struct {
	56	const char * const str;
	57	uint8_t cmd;
	58	uint8_t flags;
	59	} words[] = {
	60	{"cancel", EC_REBOOT_CANCEL, 0},
	61	{"ro", EC_REBOOT_JUMP_RO, 0},
	62	{"rw", EC_REBOOT_JUMP_RW, 0},
	63	{"cold", EC_REBOOT_COLD, 0},
	64	{"disable-jump", EC_REBOOT_DISABLE_JUMP, 0},
	65	{"hibernate", EC_REBOOT_HIBERNATE, 0},
	66	{"at-shutdown", -1, EC_REBOOT_FLAG_ON_AP_SHUTDOWN},
	67	};
a8411784 JMC	68	struct cros_ec_command *msg;
a8411784 JMC	69	struct ec_params_reboot_ec *param;
71af4b52 BR	70	int got_cmd = 0, offset = 0;
	71	int i;
	72	int ret;
57b33ff0 GG	73	struct cros_ec_dev *ec = container_of(dev,
57b33ff0 GG	74	struct cros_ec_dev, class_dev);
71af4b52	75
a8411784 JMC	76	msg = kmalloc(sizeof(msg) + sizeof(param), GFP_KERNEL);
	77	if (!msg)
	78	return -ENOMEM;
	79
	80	param = (struct ec_params_reboot_ec *)msg->data;
	81
71af4b52 BR	82	param->flags = 0;
	83	while (1) {
	84	/* Find word to start scanning */
	85	while (buf[offset] && isspace(buf[offset]))
	86	offset++;
	87	if (!buf[offset])
	88	break;
	89
	90	for (i = 0; i < ARRAY_SIZE(words); i++) {
	91	if (!strncasecmp(words[i].str, buf+offset,
	92	strlen(words[i].str))) {
	93	if (words[i].flags) {
	94	param->flags \|= words[i].flags;
	95	} else {
	96	param->cmd = words[i].cmd;
	97	got_cmd = 1;
	98	}
	99	break;
	100	}
	101	}
	102
	103	/* On to the next word, if any */
	104	while (buf[offset] && !isspace(buf[offset]))
	105	offset++;
	106	}
	107
a8411784 JMC	108	if (!got_cmd) {
	109	count = -EINVAL;
	110	goto exit;
71af4b52 BR	111	}
71af4b52 BR	112
a8411784	113	msg->version = 0;
57b33ff0	114	msg->command = EC_CMD_REBOOT_EC + ec->cmd_offset;
a8411784 JMC	115	msg->outsize = sizeof(*param);
a8411784 JMC	116	msg->insize = 0;
57b33ff0	117	ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
a8411784 JMC	118	if (ret < 0) {
	119	count = ret;
	120	goto exit;
	121	}
	122	if (msg->result != EC_RES_SUCCESS) {
	123	dev_dbg(ec->dev, "EC result %d\n", msg->result);
	124	count = -EINVAL;
	125	}
	126	exit:
	127	kfree(msg);
71af4b52 BR	128	return count;
	129	}
	130
	131	static ssize_t show_ec_version(struct device *dev,
	132	struct device_attribute attr, char buf)
	133	{
	134	static const char * const image_names[] = {"unknown", "RO", "RW"};
	135	struct ec_response_get_version *r_ver;
	136	struct ec_response_get_chip_info *r_chip;
	137	struct ec_response_board_version *r_board;
a8411784	138	struct cros_ec_command *msg;
71af4b52 BR	139	int ret;
71af4b52 BR	140	int count = 0;
57b33ff0 GG	141	struct cros_ec_dev *ec = container_of(dev,
57b33ff0 GG	142	struct cros_ec_dev, class_dev);
71af4b52	143
a8411784 JMC	144	msg = kmalloc(sizeof(*msg) + EC_HOST_PARAM_SIZE, GFP_KERNEL);
	145	if (!msg)
	146	return -ENOMEM;
	147
71af4b52	148	/* Get versions. RW may change. */
a8411784	149	msg->version = 0;
57b33ff0	150	msg->command = EC_CMD_GET_VERSION + ec->cmd_offset;
a8411784 JMC	151	msg->insize = sizeof(*r_ver);
a8411784 JMC	152	msg->outsize = 0;
57b33ff0	153	ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
a8411784 JMC	154	if (ret < 0) {
	155	count = ret;
	156	goto exit;
	157	}
	158	if (msg->result != EC_RES_SUCCESS) {
	159	count = scnprintf(buf, PAGE_SIZE,
	160	"ERROR: EC returned %d\n", msg->result);
	161	goto exit;
	162	}
71af4b52	163
a8411784	164	r_ver = (struct ec_response_get_version *)msg->data;
71af4b52 BR	165	/* Strings should be null-terminated, but let's be sure. */
	166	r_ver->version_string_ro[sizeof(r_ver->version_string_ro) - 1] = '\0';
	167	r_ver->version_string_rw[sizeof(r_ver->version_string_rw) - 1] = '\0';
	168	count += scnprintf(buf + count, PAGE_SIZE - count,
	169	"RO version: %s\n", r_ver->version_string_ro);
	170	count += scnprintf(buf + count, PAGE_SIZE - count,
	171	"RW version: %s\n", r_ver->version_string_rw);
	172	count += scnprintf(buf + count, PAGE_SIZE - count,
	173	"Firmware copy: %s\n",
	174	(r_ver->current_image < ARRAY_SIZE(image_names) ?
	175	image_names[r_ver->current_image] : "?"));
	176
	177	/* Get build info. */
57b33ff0	178	msg->command = EC_CMD_GET_BUILD_INFO + ec->cmd_offset;
a8411784	179	msg->insize = EC_HOST_PARAM_SIZE;
57b33ff0	180	ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
71af4b52 BR	181	if (ret < 0)
	182	count += scnprintf(buf + count, PAGE_SIZE - count,
	183	"Build info: XFER ERROR %d\n", ret);
a8411784	184	else if (msg->result != EC_RES_SUCCESS)
71af4b52	185	count += scnprintf(buf + count, PAGE_SIZE - count,
a8411784	186	"Build info: EC error %d\n", msg->result);
71af4b52	187	else {
a8411784	188	msg->data[sizeof(msg->data) - 1] = '\0';
71af4b52	189	count += scnprintf(buf + count, PAGE_SIZE - count,
a8411784	190	"Build info: %s\n", msg->data);
71af4b52 BR	191	}
	192
	193	/* Get chip info. */
57b33ff0	194	msg->command = EC_CMD_GET_CHIP_INFO + ec->cmd_offset;
a8411784	195	msg->insize = sizeof(*r_chip);
57b33ff0	196	ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
71af4b52 BR	197	if (ret < 0)
	198	count += scnprintf(buf + count, PAGE_SIZE - count,
	199	"Chip info: XFER ERROR %d\n", ret);
a8411784	200	else if (msg->result != EC_RES_SUCCESS)
71af4b52	201	count += scnprintf(buf + count, PAGE_SIZE - count,
a8411784	202	"Chip info: EC error %d\n", msg->result);
71af4b52	203	else {
a8411784	204	r_chip = (struct ec_response_get_chip_info *)msg->data;
71af4b52 BR	205
	206	r_chip->vendor[sizeof(r_chip->vendor) - 1] = '\0';
	207	r_chip->name[sizeof(r_chip->name) - 1] = '\0';
	208	r_chip->revision[sizeof(r_chip->revision) - 1] = '\0';
	209	count += scnprintf(buf + count, PAGE_SIZE - count,
	210	"Chip vendor: %s\n", r_chip->vendor);
	211	count += scnprintf(buf + count, PAGE_SIZE - count,
	212	"Chip name: %s\n", r_chip->name);
	213	count += scnprintf(buf + count, PAGE_SIZE - count,
	214	"Chip revision: %s\n", r_chip->revision);
	215	}
	216
	217	/* Get board version */
57b33ff0	218	msg->command = EC_CMD_GET_BOARD_VERSION + ec->cmd_offset;
a8411784	219	msg->insize = sizeof(*r_board);
57b33ff0	220	ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
71af4b52 BR	221	if (ret < 0)
	222	count += scnprintf(buf + count, PAGE_SIZE - count,
	223	"Board version: XFER ERROR %d\n", ret);
a8411784	224	else if (msg->result != EC_RES_SUCCESS)
71af4b52	225	count += scnprintf(buf + count, PAGE_SIZE - count,
a8411784	226	"Board version: EC error %d\n", msg->result);
71af4b52	227	else {
a8411784	228	r_board = (struct ec_response_board_version *)msg->data;
71af4b52 BR	229
	230	count += scnprintf(buf + count, PAGE_SIZE - count,
	231	"Board version: %d\n",
	232	r_board->board_version);
	233	}
	234
a8411784 JMC	235	exit:
a8411784 JMC	236	kfree(msg);
71af4b52 BR	237	return count;
	238	}
	239
	240	static ssize_t show_ec_flashinfo(struct device *dev,
	241	struct device_attribute attr, char buf)
	242	{
	243	struct ec_response_flash_info *resp;
a8411784	244	struct cros_ec_command *msg;
71af4b52	245	int ret;
57b33ff0 GG	246	struct cros_ec_dev *ec = container_of(dev,
57b33ff0 GG	247	struct cros_ec_dev, class_dev);
71af4b52	248
a8411784 JMC	249	msg = kmalloc(sizeof(msg) + sizeof(resp), GFP_KERNEL);
	250	if (!msg)
	251	return -ENOMEM;
	252
71af4b52	253	/* The flash info shouldn't ever change, but ask each time anyway. */
a8411784	254	msg->version = 0;
57b33ff0	255	msg->command = EC_CMD_FLASH_INFO + ec->cmd_offset;
a8411784 JMC	256	msg->insize = sizeof(*resp);
a8411784 JMC	257	msg->outsize = 0;
57b33ff0	258	ret = cros_ec_cmd_xfer(ec->ec_dev, msg);
71af4b52	259	if (ret < 0)
a8411784 JMC	260	goto exit;
	261	if (msg->result != EC_RES_SUCCESS) {
	262	ret = scnprintf(buf, PAGE_SIZE,
	263	"ERROR: EC returned %d\n", msg->result);
	264	goto exit;
	265	}
	266
	267	resp = (struct ec_response_flash_info *)msg->data;
	268
	269	ret = scnprintf(buf, PAGE_SIZE,
	270	"FlashSize %d\nWriteSize %d\n"
	271	"EraseSize %d\nProtectSize %d\n",
	272	resp->flash_size, resp->write_block_size,
	273	resp->erase_block_size, resp->protect_block_size);
	274	exit:
	275	kfree(msg);
	276	return ret;
71af4b52 BR	277	}
	278
	279	/* Module initialization */
	280
	281	static DEVICE_ATTR(reboot, S_IWUSR \| S_IRUGO, show_ec_reboot, store_ec_reboot);
	282	static DEVICE_ATTR(version, S_IRUGO, show_ec_version, NULL);
	283	static DEVICE_ATTR(flashinfo, S_IRUGO, show_ec_flashinfo, NULL);
	284
	285	static struct attribute *__ec_attrs[] = {
	286	&dev_attr_reboot.attr,
	287	&dev_attr_version.attr,
	288	&dev_attr_flashinfo.attr,
	289	NULL,
	290	};
	291
57b33ff0	292	struct attribute_group cros_ec_attr_group = {
71af4b52 BR	293	.attrs = __ec_attrs,
71af4b52 BR	294	};
ea01a31b	295	EXPORT_SYMBOL(cros_ec_attr_group);
71af4b52	296
ea01a31b TE	297	MODULE_LICENSE("GPL");
ea01a31b TE	298	MODULE_DESCRIPTION("ChromeOS EC control driver");