11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and 3110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * Philip Edelbrock <phil@netroedge.com> 4110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com> 5110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * Copyright (C) 2003 IBM Corp. 6110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * Copyright (C) 2004 Jean Delvare <khali@linux-fr.org> 7110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * 8110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * This program is free software; you can redistribute it and/or modify 9110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * it under the terms of the GNU General Public License as published by 10110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * the Free Software Foundation; either version 2 of the License, or 11110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * (at your option) any later version. 12110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * 13110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * This program is distributed in the hope that it will be useful, 14110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * but WITHOUT ANY WARRANTY; without even the implied warranty of 15110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham * GNU General Public License for more details. 17110f42290f812aa578a03b39a3c3156f89b97ba0Arce, Abraham */ 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/jiffies.h> 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/i2c.h> 255c085d369c2c4f18942ec8951466e186366d5c78Ingo Molnar#include <linux/mutex.h> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Addresses to scan */ 282cdddeb8d7dd42dc1847b110228a626d25a1e468Jean Delvarestatic const unsigned short normal_i2c[] = { 0x50, 0x51, 0x52, 0x53, 0x54, 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 0x55, 0x56, 0x57, I2C_CLIENT_END }; 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Size of EEPROM in bytes */ 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define EEPROM_SIZE 256 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* possible types of eeprom devices */ 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsenum eeprom_nature { 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds UNKNOWN, 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds VAIO, 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Each client has this additional data */ 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct eeprom_data { 435c085d369c2c4f18942ec8951466e186366d5c78Ingo Molnar struct mutex update_lock; 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 valid; /* bitfield, bit!=0 if slice is valid */ 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long last_updated[8]; /* In jiffies, 8 slices */ 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 data[EEPROM_SIZE]; /* Register values */ 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enum eeprom_nature nature; 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void eeprom_update_client(struct i2c_client *client, u8 slice) 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct eeprom_data *data = i2c_get_clientdata(client); 541b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare int i; 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 565c085d369c2c4f18942ec8951466e186366d5c78Ingo Molnar mutex_lock(&data->update_lock); 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(data->valid & (1 << slice)) || 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds time_after(jiffies, data->last_updated[slice] + 300 * HZ)) { 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_dbg(&client->dev, "Starting eeprom update, slice %u\n", slice); 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_I2C_BLOCK)) { 634b2643d7d9bdcd776749e17f73c168ddf02e93cbJean Delvare for (i = slice << 5; i < (slice + 1) << 5; i += 32) 644b2643d7d9bdcd776749e17f73c168ddf02e93cbJean Delvare if (i2c_smbus_read_i2c_block_data(client, i, 654b2643d7d9bdcd776749e17f73c168ddf02e93cbJean Delvare 32, data->data + i) 664b2643d7d9bdcd776749e17f73c168ddf02e93cbJean Delvare != 32) 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto exit; 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 691b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare for (i = slice << 5; i < (slice + 1) << 5; i += 2) { 701b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare int word = i2c_smbus_read_word_data(client, i); 711b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare if (word < 0) 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto exit; 731b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare data->data[i] = word & 0xff; 741b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare data->data[i + 1] = word >> 8; 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->last_updated[slice] = jiffies; 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->valid |= (1 << slice); 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsexit: 815c085d369c2c4f18942ec8951466e186366d5c78Ingo Molnar mutex_unlock(&data->update_lock); 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 842c3c8bea608866d8bd9dcf92657d57fdcac011c5Chris Wrightstatic ssize_t eeprom_read(struct file *filp, struct kobject *kobj, 852c3c8bea608866d8bd9dcf92657d57fdcac011c5Chris Wright struct bin_attribute *bin_attr, 8691a6902958f052358899f58683d44e36228d85c2Zhang Rui char *buf, loff_t off, size_t count) 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct i2c_client *client = to_i2c_client(container_of(kobj, struct device, kobj)); 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct eeprom_data *data = i2c_get_clientdata(client); 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 slice; 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (off > EEPROM_SIZE) 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (off + count > EEPROM_SIZE) 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds count = EEPROM_SIZE - off; 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Only refresh slices which contain requested bytes */ 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (slice = off >> 5; slice <= (off + count - 1) >> 5; slice++) 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds eeprom_update_client(client, slice); 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1010f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare /* Hide Vaio private settings to regular users: 1020f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare - BIOS passwords: bytes 0x00 to 0x0f 1030f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare - UUID: bytes 0x10 to 0x1f 1040f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare - Serial number: 0xc0 to 0xdf */ 1050f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare if (data->nature == VAIO && !capable(CAP_SYS_ADMIN)) { 1060f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare int i; 1070f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare 1080f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare for (i = 0; i < count; i++) { 1090f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare if ((off + i <= 0x1f) || 1100f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare (off + i >= 0xc0 && off + i <= 0xdf)) 1110f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare buf[i] = 0; 1120f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare else 1130f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare buf[i] = data->data[off + i]; 1140f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare } 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(buf, &data->data[off], count); 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return count; 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct bin_attribute eeprom_attr = { 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .attr = { 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "eeprom", 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .mode = S_IRUGO, 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }, 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .size = EEPROM_SIZE, 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .read = eeprom_read, 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13168be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare/* Return 0 if detection is successful, -ENODEV otherwise */ 132310ec79210d754afe51e2e4a983e846b60179abdJean Delvarestatic int eeprom_detect(struct i2c_client *client, struct i2c_board_info *info) 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 13468be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare struct i2c_adapter *adapter = client->adapter; 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 136d4653bf946a5856a17342cd47c47d10b16b1cc22Jean Delvare /* EDID EEPROMs are often 24C00 EEPROMs, which answer to all 137d4653bf946a5856a17342cd47c47d10b16b1cc22Jean Delvare addresses 0x50-0x57, but we only care about 0x50. So decline 138d4653bf946a5856a17342cd47c47d10b16b1cc22Jean Delvare attaching to addresses >= 0x51 on DDC buses */ 13968be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare if (!(adapter->class & I2C_CLASS_SPD) && client->addr >= 0x51) 14068be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare return -ENODEV; 141d4653bf946a5856a17342cd47c47d10b16b1cc22Jean Delvare 1421b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare /* There are four ways we can read the EEPROM data: 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (1) I2C block reads (faster, but unsupported by most adapters) 1441b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare (2) Word reads (128% overhead) 1451b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare (3) Consecutive byte reads (88% overhead, unsafe) 1461b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare (4) Regular byte data reads (265% overhead) 1471b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare The third and fourth methods are not implemented by this driver 1481b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare because all known adapters support one of the first two. */ 1491b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_WORD_DATA) 1501b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare && !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_I2C_BLOCK)) 15168be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare return -ENODEV; 15268be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare 15368be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare strlcpy(info->type, "eeprom", I2C_NAME_SIZE); 15468be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare 15568be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare return 0; 15668be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare} 15768be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare 15868be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvarestatic int eeprom_probe(struct i2c_client *client, 15968be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare const struct i2c_device_id *id) 16068be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare{ 16168be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare struct i2c_adapter *adapter = client->adapter; 16268be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare struct eeprom_data *data; 16368be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare int err; 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1655263ebb51eb098b01caf229498c954999117e4a7Deepak Saxena if (!(data = kzalloc(sizeof(struct eeprom_data), GFP_KERNEL))) { 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = -ENOMEM; 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto exit; 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(data->data, 0xff, EEPROM_SIZE); 171f741f673298b03b92d46e30b0b6fd0e960423665Jean Delvare i2c_set_clientdata(client, data); 1725c085d369c2c4f18942ec8951466e186366d5c78Ingo Molnar mutex_init(&data->update_lock); 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->nature = UNKNOWN; 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Detect the Vaio nature of EEPROMs. 1768b925a3dd8a4d7451092cb9aa11da727ba69e0f0Jean Delvare We use the "PCG-" or "VGN-" prefix as the signature. */ 17768be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare if (client->addr == 0x57 1781b4dff9cd37d430bc76112396e92bb3552f37ccdJean Delvare && i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA)) { 1798b925a3dd8a4d7451092cb9aa11da727ba69e0f0Jean Delvare char name[4]; 1808b925a3dd8a4d7451092cb9aa11da727ba69e0f0Jean Delvare 181f741f673298b03b92d46e30b0b6fd0e960423665Jean Delvare name[0] = i2c_smbus_read_byte_data(client, 0x80); 182f741f673298b03b92d46e30b0b6fd0e960423665Jean Delvare name[1] = i2c_smbus_read_byte_data(client, 0x81); 183f741f673298b03b92d46e30b0b6fd0e960423665Jean Delvare name[2] = i2c_smbus_read_byte_data(client, 0x82); 184f741f673298b03b92d46e30b0b6fd0e960423665Jean Delvare name[3] = i2c_smbus_read_byte_data(client, 0x83); 1858b925a3dd8a4d7451092cb9aa11da727ba69e0f0Jean Delvare 1868b925a3dd8a4d7451092cb9aa11da727ba69e0f0Jean Delvare if (!memcmp(name, "PCG-", 4) || !memcmp(name, "VGN-", 4)) { 187f741f673298b03b92d46e30b0b6fd0e960423665Jean Delvare dev_info(&client->dev, "Vaio EEPROM detected, " 1880f2cbd38aa377e30df3b7602abed69464d1970aaJean Delvare "enabling privacy protection\n"); 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data->nature = VAIO; 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* create the sysfs eeprom file */ 194f741f673298b03b92d46e30b0b6fd0e960423665Jean Delvare err = sysfs_create_bin_file(&client->dev.kobj, &eeprom_attr); 1957d9db67febf67dd76329a9dd8f97cf4611a8ac2eJean Delvare if (err) 19668be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare goto exit_kfree; 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsexit_kfree: 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(data); 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsexit: 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20668be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvarestatic int eeprom_remove(struct i2c_client *client) 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2087d9db67febf67dd76329a9dd8f97cf4611a8ac2eJean Delvare sysfs_remove_bin_file(&client->dev.kobj, &eeprom_attr); 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(i2c_get_clientdata(client)); 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 21468be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvarestatic const struct i2c_device_id eeprom_id[] = { 21568be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare { "eeprom", 0 }, 21668be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare { } 21768be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare}; 21868be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare 21968be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvarestatic struct i2c_driver eeprom_driver = { 22068be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare .driver = { 22168be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare .name = "eeprom", 22268be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare }, 22368be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare .probe = eeprom_probe, 22468be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare .remove = eeprom_remove, 22568be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare .id_table = eeprom_id, 22668be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare 22768be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare .class = I2C_CLASS_DDC | I2C_CLASS_SPD, 22868be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare .detect = eeprom_detect, 229c3813d6af177fab19e322f3114b1f64fbcf08d71Jean Delvare .address_list = normal_i2c, 23068be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare}; 23168be3363740e4ac3b4309faebcdf8fe5bf62ed2fJean Delvare 232a64fe2ed76614d37abb6966a67f4f39d10efba3cAxel Linmodule_i2c_driver(eeprom_driver); 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl> and " 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Philip Edelbrock <phil@netroedge.com> and " 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Greg Kroah-Hartman <greg@kroah.com>"); 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("I2C EEPROM driver"); 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 239