Guenter Roeck | 335d7c5 | 2011-01-26 11:45:49 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Driver for the Diolan u2c-12 USB-I2C adapter |
| 3 | * |
| 4 | * Copyright (c) 2010-2011 Ericsson AB |
| 5 | * |
| 6 | * Derived from: |
| 7 | * i2c-tiny-usb.c |
| 8 | * Copyright (C) 2006-2007 Till Harbaum (Till@Harbaum.org) |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or |
| 11 | * modify it under the terms of the GNU General Public License as |
| 12 | * published by the Free Software Foundation, version 2. |
| 13 | */ |
| 14 | |
| 15 | #include <linux/kernel.h> |
| 16 | #include <linux/errno.h> |
| 17 | #include <linux/module.h> |
| 18 | #include <linux/types.h> |
| 19 | #include <linux/slab.h> |
| 20 | #include <linux/usb.h> |
| 21 | #include <linux/i2c.h> |
| 22 | |
| 23 | #define DRIVER_NAME "i2c-diolan-u2c" |
| 24 | |
| 25 | #define USB_VENDOR_ID_DIOLAN 0x0abf |
| 26 | #define USB_DEVICE_ID_DIOLAN_U2C 0x3370 |
| 27 | |
| 28 | #define DIOLAN_OUT_EP 0x02 |
| 29 | #define DIOLAN_IN_EP 0x84 |
| 30 | |
| 31 | /* commands via USB, must match command ids in the firmware */ |
| 32 | #define CMD_I2C_READ 0x01 |
| 33 | #define CMD_I2C_WRITE 0x02 |
| 34 | #define CMD_I2C_SCAN 0x03 /* Returns list of detected devices */ |
| 35 | #define CMD_I2C_RELEASE_SDA 0x04 |
| 36 | #define CMD_I2C_RELEASE_SCL 0x05 |
| 37 | #define CMD_I2C_DROP_SDA 0x06 |
| 38 | #define CMD_I2C_DROP_SCL 0x07 |
| 39 | #define CMD_I2C_READ_SDA 0x08 |
| 40 | #define CMD_I2C_READ_SCL 0x09 |
| 41 | #define CMD_GET_FW_VERSION 0x0a |
| 42 | #define CMD_GET_SERIAL 0x0b |
| 43 | #define CMD_I2C_START 0x0c |
| 44 | #define CMD_I2C_STOP 0x0d |
| 45 | #define CMD_I2C_REPEATED_START 0x0e |
| 46 | #define CMD_I2C_PUT_BYTE 0x0f |
| 47 | #define CMD_I2C_GET_BYTE 0x10 |
| 48 | #define CMD_I2C_PUT_ACK 0x11 |
| 49 | #define CMD_I2C_GET_ACK 0x12 |
| 50 | #define CMD_I2C_PUT_BYTE_ACK 0x13 |
| 51 | #define CMD_I2C_GET_BYTE_ACK 0x14 |
| 52 | #define CMD_I2C_SET_SPEED 0x1b |
| 53 | #define CMD_I2C_GET_SPEED 0x1c |
| 54 | #define CMD_I2C_SET_CLK_SYNC 0x24 |
| 55 | #define CMD_I2C_GET_CLK_SYNC 0x25 |
| 56 | #define CMD_I2C_SET_CLK_SYNC_TO 0x26 |
| 57 | #define CMD_I2C_GET_CLK_SYNC_TO 0x27 |
| 58 | |
| 59 | #define RESP_OK 0x00 |
| 60 | #define RESP_FAILED 0x01 |
| 61 | #define RESP_BAD_MEMADDR 0x04 |
| 62 | #define RESP_DATA_ERR 0x05 |
| 63 | #define RESP_NOT_IMPLEMENTED 0x06 |
| 64 | #define RESP_NACK 0x07 |
| 65 | #define RESP_TIMEOUT 0x09 |
| 66 | |
| 67 | #define U2C_I2C_SPEED_FAST 0 /* 400 kHz */ |
| 68 | #define U2C_I2C_SPEED_STD 1 /* 100 kHz */ |
| 69 | #define U2C_I2C_SPEED_2KHZ 242 /* 2 kHz, minimum speed */ |
| 70 | #define U2C_I2C_SPEED(f) ((DIV_ROUND_UP(1000000, (f)) - 10) / 2 + 1) |
| 71 | |
| 72 | #define U2C_I2C_FREQ_FAST 400000 |
| 73 | #define U2C_I2C_FREQ_STD 100000 |
| 74 | #define U2C_I2C_FREQ(s) (1000000 / (2 * (s - 1) + 10)) |
| 75 | |
| 76 | #define DIOLAN_USB_TIMEOUT 100 /* in ms */ |
| 77 | #define DIOLAN_SYNC_TIMEOUT 20 /* in ms */ |
| 78 | |
| 79 | #define DIOLAN_OUTBUF_LEN 128 |
| 80 | #define DIOLAN_FLUSH_LEN (DIOLAN_OUTBUF_LEN - 4) |
| 81 | #define DIOLAN_INBUF_LEN 256 /* Maximum supported receive length */ |
| 82 | |
| 83 | /* Structure to hold all of our device specific stuff */ |
| 84 | struct i2c_diolan_u2c { |
| 85 | u8 obuffer[DIOLAN_OUTBUF_LEN]; /* output buffer */ |
| 86 | u8 ibuffer[DIOLAN_INBUF_LEN]; /* input buffer */ |
| 87 | struct usb_device *usb_dev; /* the usb device for this device */ |
| 88 | struct usb_interface *interface;/* the interface for this device */ |
| 89 | struct i2c_adapter adapter; /* i2c related things */ |
| 90 | int olen; /* Output buffer length */ |
| 91 | int ocount; /* Number of enqueued messages */ |
| 92 | }; |
| 93 | |
| 94 | static uint frequency = U2C_I2C_FREQ_STD; /* I2C clock frequency in Hz */ |
| 95 | |
| 96 | module_param(frequency, uint, S_IRUGO | S_IWUSR); |
| 97 | MODULE_PARM_DESC(frequency, "I2C clock frequency in hertz"); |
| 98 | |
| 99 | /* usb layer */ |
| 100 | |
| 101 | /* Send command to device, and get response. */ |
| 102 | static int diolan_usb_transfer(struct i2c_diolan_u2c *dev) |
| 103 | { |
| 104 | int ret = 0; |
| 105 | int actual; |
| 106 | int i; |
| 107 | |
| 108 | if (!dev->olen || !dev->ocount) |
| 109 | return -EINVAL; |
| 110 | |
| 111 | ret = usb_bulk_msg(dev->usb_dev, |
| 112 | usb_sndbulkpipe(dev->usb_dev, DIOLAN_OUT_EP), |
| 113 | dev->obuffer, dev->olen, &actual, |
| 114 | DIOLAN_USB_TIMEOUT); |
| 115 | if (!ret) { |
| 116 | for (i = 0; i < dev->ocount; i++) { |
| 117 | int tmpret; |
| 118 | |
| 119 | tmpret = usb_bulk_msg(dev->usb_dev, |
| 120 | usb_rcvbulkpipe(dev->usb_dev, |
| 121 | DIOLAN_IN_EP), |
| 122 | dev->ibuffer, |
| 123 | sizeof(dev->ibuffer), &actual, |
| 124 | DIOLAN_USB_TIMEOUT); |
| 125 | /* |
| 126 | * Stop command processing if a previous command |
| 127 | * returned an error. |
| 128 | * Note that we still need to retrieve all messages. |
| 129 | */ |
| 130 | if (ret < 0) |
| 131 | continue; |
| 132 | ret = tmpret; |
| 133 | if (ret == 0 && actual > 0) { |
| 134 | switch (dev->ibuffer[actual - 1]) { |
| 135 | case RESP_NACK: |
| 136 | /* |
| 137 | * Return ENXIO if NACK was received as |
| 138 | * response to the address phase, |
| 139 | * EIO otherwise |
| 140 | */ |
| 141 | ret = i == 1 ? -ENXIO : -EIO; |
| 142 | break; |
| 143 | case RESP_TIMEOUT: |
| 144 | ret = -ETIMEDOUT; |
| 145 | break; |
| 146 | case RESP_OK: |
| 147 | /* strip off return code */ |
| 148 | ret = actual - 1; |
| 149 | break; |
| 150 | default: |
| 151 | ret = -EIO; |
| 152 | break; |
| 153 | } |
| 154 | } |
| 155 | } |
| 156 | } |
| 157 | dev->olen = 0; |
| 158 | dev->ocount = 0; |
| 159 | return ret; |
| 160 | } |
| 161 | |
| 162 | static int diolan_write_cmd(struct i2c_diolan_u2c *dev, bool flush) |
| 163 | { |
| 164 | if (flush || dev->olen >= DIOLAN_FLUSH_LEN) |
| 165 | return diolan_usb_transfer(dev); |
| 166 | return 0; |
| 167 | } |
| 168 | |
| 169 | /* Send command (no data) */ |
| 170 | static int diolan_usb_cmd(struct i2c_diolan_u2c *dev, u8 command, bool flush) |
| 171 | { |
| 172 | dev->obuffer[dev->olen++] = command; |
| 173 | dev->ocount++; |
| 174 | return diolan_write_cmd(dev, flush); |
| 175 | } |
| 176 | |
| 177 | /* Send command with one byte of data */ |
| 178 | static int diolan_usb_cmd_data(struct i2c_diolan_u2c *dev, u8 command, u8 data, |
| 179 | bool flush) |
| 180 | { |
| 181 | dev->obuffer[dev->olen++] = command; |
| 182 | dev->obuffer[dev->olen++] = data; |
| 183 | dev->ocount++; |
| 184 | return diolan_write_cmd(dev, flush); |
| 185 | } |
| 186 | |
| 187 | /* Send command with two bytes of data */ |
| 188 | static int diolan_usb_cmd_data2(struct i2c_diolan_u2c *dev, u8 command, u8 d1, |
| 189 | u8 d2, bool flush) |
| 190 | { |
| 191 | dev->obuffer[dev->olen++] = command; |
| 192 | dev->obuffer[dev->olen++] = d1; |
| 193 | dev->obuffer[dev->olen++] = d2; |
| 194 | dev->ocount++; |
| 195 | return diolan_write_cmd(dev, flush); |
| 196 | } |
| 197 | |
| 198 | /* |
| 199 | * Flush input queue. |
| 200 | * If we don't do this at startup and the controller has queued up |
| 201 | * messages which were not retrieved, it will stop responding |
| 202 | * at some point. |
| 203 | */ |
| 204 | static void diolan_flush_input(struct i2c_diolan_u2c *dev) |
| 205 | { |
| 206 | int i; |
| 207 | |
| 208 | for (i = 0; i < 10; i++) { |
| 209 | int actual = 0; |
| 210 | int ret; |
| 211 | |
| 212 | ret = usb_bulk_msg(dev->usb_dev, |
| 213 | usb_rcvbulkpipe(dev->usb_dev, DIOLAN_IN_EP), |
| 214 | dev->ibuffer, sizeof(dev->ibuffer), &actual, |
| 215 | DIOLAN_USB_TIMEOUT); |
| 216 | if (ret < 0 || actual == 0) |
| 217 | break; |
| 218 | } |
| 219 | if (i == 10) |
| 220 | dev_err(&dev->interface->dev, "Failed to flush input buffer\n"); |
| 221 | } |
| 222 | |
| 223 | static int diolan_i2c_start(struct i2c_diolan_u2c *dev) |
| 224 | { |
| 225 | return diolan_usb_cmd(dev, CMD_I2C_START, false); |
| 226 | } |
| 227 | |
| 228 | static int diolan_i2c_repeated_start(struct i2c_diolan_u2c *dev) |
| 229 | { |
| 230 | return diolan_usb_cmd(dev, CMD_I2C_REPEATED_START, false); |
| 231 | } |
| 232 | |
| 233 | static int diolan_i2c_stop(struct i2c_diolan_u2c *dev) |
| 234 | { |
| 235 | return diolan_usb_cmd(dev, CMD_I2C_STOP, true); |
| 236 | } |
| 237 | |
| 238 | static int diolan_i2c_get_byte_ack(struct i2c_diolan_u2c *dev, bool ack, |
| 239 | u8 *byte) |
| 240 | { |
| 241 | int ret; |
| 242 | |
| 243 | ret = diolan_usb_cmd_data(dev, CMD_I2C_GET_BYTE_ACK, ack, true); |
| 244 | if (ret > 0) |
| 245 | *byte = dev->ibuffer[0]; |
| 246 | else if (ret == 0) |
| 247 | ret = -EIO; |
| 248 | |
| 249 | return ret; |
| 250 | } |
| 251 | |
| 252 | static int diolan_i2c_put_byte_ack(struct i2c_diolan_u2c *dev, u8 byte) |
| 253 | { |
| 254 | return diolan_usb_cmd_data(dev, CMD_I2C_PUT_BYTE_ACK, byte, false); |
| 255 | } |
| 256 | |
| 257 | static int diolan_set_speed(struct i2c_diolan_u2c *dev, u8 speed) |
| 258 | { |
| 259 | return diolan_usb_cmd_data(dev, CMD_I2C_SET_SPEED, speed, true); |
| 260 | } |
| 261 | |
| 262 | /* Enable or disable clock synchronization (stretching) */ |
| 263 | static int diolan_set_clock_synch(struct i2c_diolan_u2c *dev, bool enable) |
| 264 | { |
| 265 | return diolan_usb_cmd_data(dev, CMD_I2C_SET_CLK_SYNC, enable, true); |
| 266 | } |
| 267 | |
| 268 | /* Set clock synchronization timeout in ms */ |
| 269 | static int diolan_set_clock_synch_timeout(struct i2c_diolan_u2c *dev, int ms) |
| 270 | { |
| 271 | int to_val = ms * 10; |
| 272 | |
| 273 | return diolan_usb_cmd_data2(dev, CMD_I2C_SET_CLK_SYNC_TO, |
| 274 | to_val & 0xff, (to_val >> 8) & 0xff, true); |
| 275 | } |
| 276 | |
| 277 | static void diolan_fw_version(struct i2c_diolan_u2c *dev) |
| 278 | { |
| 279 | int ret; |
| 280 | |
| 281 | ret = diolan_usb_cmd(dev, CMD_GET_FW_VERSION, true); |
| 282 | if (ret >= 2) |
| 283 | dev_info(&dev->interface->dev, |
| 284 | "Diolan U2C firmware version %u.%u\n", |
| 285 | (unsigned int)dev->ibuffer[0], |
| 286 | (unsigned int)dev->ibuffer[1]); |
| 287 | } |
| 288 | |
| 289 | static void diolan_get_serial(struct i2c_diolan_u2c *dev) |
| 290 | { |
| 291 | int ret; |
| 292 | u32 serial; |
| 293 | |
| 294 | ret = diolan_usb_cmd(dev, CMD_GET_SERIAL, true); |
| 295 | if (ret >= 4) { |
| 296 | serial = le32_to_cpu(*(u32 *)dev->ibuffer); |
| 297 | dev_info(&dev->interface->dev, |
| 298 | "Diolan U2C serial number %u\n", serial); |
| 299 | } |
| 300 | } |
| 301 | |
| 302 | static int diolan_init(struct i2c_diolan_u2c *dev) |
| 303 | { |
| 304 | int speed, ret; |
| 305 | |
| 306 | if (frequency >= 200000) { |
| 307 | speed = U2C_I2C_SPEED_FAST; |
| 308 | frequency = U2C_I2C_FREQ_FAST; |
| 309 | } else if (frequency >= 100000 || frequency == 0) { |
| 310 | speed = U2C_I2C_SPEED_STD; |
| 311 | frequency = U2C_I2C_FREQ_STD; |
| 312 | } else { |
| 313 | speed = U2C_I2C_SPEED(frequency); |
| 314 | if (speed > U2C_I2C_SPEED_2KHZ) |
| 315 | speed = U2C_I2C_SPEED_2KHZ; |
| 316 | frequency = U2C_I2C_FREQ(speed); |
| 317 | } |
| 318 | |
| 319 | dev_info(&dev->interface->dev, |
| 320 | "Diolan U2C at USB bus %03d address %03d speed %d Hz\n", |
| 321 | dev->usb_dev->bus->busnum, dev->usb_dev->devnum, frequency); |
| 322 | |
| 323 | diolan_flush_input(dev); |
| 324 | diolan_fw_version(dev); |
| 325 | diolan_get_serial(dev); |
| 326 | |
| 327 | /* Set I2C speed */ |
| 328 | ret = diolan_set_speed(dev, speed); |
| 329 | if (ret < 0) |
| 330 | return ret; |
| 331 | |
| 332 | /* Configure I2C clock synchronization */ |
| 333 | ret = diolan_set_clock_synch(dev, speed != U2C_I2C_SPEED_FAST); |
| 334 | if (ret < 0) |
| 335 | return ret; |
| 336 | |
| 337 | if (speed != U2C_I2C_SPEED_FAST) |
| 338 | ret = diolan_set_clock_synch_timeout(dev, DIOLAN_SYNC_TIMEOUT); |
| 339 | |
| 340 | return ret; |
| 341 | } |
| 342 | |
| 343 | /* i2c layer */ |
| 344 | |
| 345 | static int diolan_usb_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs, |
| 346 | int num) |
| 347 | { |
| 348 | struct i2c_diolan_u2c *dev = i2c_get_adapdata(adapter); |
| 349 | struct i2c_msg *pmsg; |
| 350 | int i, j; |
| 351 | int ret, sret; |
| 352 | |
| 353 | ret = diolan_i2c_start(dev); |
| 354 | if (ret < 0) |
| 355 | return ret; |
| 356 | |
| 357 | for (i = 0; i < num; i++) { |
| 358 | pmsg = &msgs[i]; |
| 359 | if (i) { |
| 360 | ret = diolan_i2c_repeated_start(dev); |
| 361 | if (ret < 0) |
| 362 | goto abort; |
| 363 | } |
| 364 | if (pmsg->flags & I2C_M_RD) { |
| 365 | ret = |
| 366 | diolan_i2c_put_byte_ack(dev, (pmsg->addr << 1) | 1); |
| 367 | if (ret < 0) |
| 368 | goto abort; |
| 369 | for (j = 0; j < pmsg->len; j++) { |
| 370 | u8 byte; |
| 371 | bool ack = j < pmsg->len - 1; |
| 372 | |
| 373 | /* |
| 374 | * Don't send NACK if this is the first byte |
| 375 | * of a SMBUS_BLOCK message. |
| 376 | */ |
| 377 | if (j == 0 && (pmsg->flags & I2C_M_RECV_LEN)) |
| 378 | ack = true; |
| 379 | |
| 380 | ret = diolan_i2c_get_byte_ack(dev, ack, &byte); |
| 381 | if (ret < 0) |
| 382 | goto abort; |
| 383 | /* |
| 384 | * Adjust count if first received byte is length |
| 385 | */ |
| 386 | if (j == 0 && (pmsg->flags & I2C_M_RECV_LEN)) { |
| 387 | if (byte == 0 |
| 388 | || byte > I2C_SMBUS_BLOCK_MAX) { |
| 389 | ret = -EPROTO; |
| 390 | goto abort; |
| 391 | } |
| 392 | pmsg->len += byte; |
| 393 | } |
| 394 | pmsg->buf[j] = byte; |
| 395 | } |
| 396 | } else { |
| 397 | ret = diolan_i2c_put_byte_ack(dev, pmsg->addr << 1); |
| 398 | if (ret < 0) |
| 399 | goto abort; |
| 400 | for (j = 0; j < pmsg->len; j++) { |
| 401 | ret = diolan_i2c_put_byte_ack(dev, |
| 402 | pmsg->buf[j]); |
| 403 | if (ret < 0) |
| 404 | goto abort; |
| 405 | } |
| 406 | } |
| 407 | } |
Guenter Roeck | ab5625c | 2012-08-09 08:47:20 -0700 | [diff] [blame] | 408 | ret = num; |
Guenter Roeck | 335d7c5 | 2011-01-26 11:45:49 -0800 | [diff] [blame] | 409 | abort: |
| 410 | sret = diolan_i2c_stop(dev); |
| 411 | if (sret < 0 && ret >= 0) |
| 412 | ret = sret; |
| 413 | return ret; |
| 414 | } |
| 415 | |
| 416 | /* |
| 417 | * Return list of supported functionality. |
| 418 | */ |
| 419 | static u32 diolan_usb_func(struct i2c_adapter *a) |
| 420 | { |
| 421 | return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | |
| 422 | I2C_FUNC_SMBUS_READ_BLOCK_DATA | I2C_FUNC_SMBUS_BLOCK_PROC_CALL; |
| 423 | } |
| 424 | |
| 425 | static const struct i2c_algorithm diolan_usb_algorithm = { |
| 426 | .master_xfer = diolan_usb_xfer, |
| 427 | .functionality = diolan_usb_func, |
| 428 | }; |
| 429 | |
| 430 | /* device layer */ |
| 431 | |
| 432 | static const struct usb_device_id diolan_u2c_table[] = { |
| 433 | { USB_DEVICE(USB_VENDOR_ID_DIOLAN, USB_DEVICE_ID_DIOLAN_U2C) }, |
| 434 | { } |
| 435 | }; |
| 436 | |
| 437 | MODULE_DEVICE_TABLE(usb, diolan_u2c_table); |
| 438 | |
| 439 | static void diolan_u2c_free(struct i2c_diolan_u2c *dev) |
| 440 | { |
| 441 | usb_put_dev(dev->usb_dev); |
| 442 | kfree(dev); |
| 443 | } |
| 444 | |
| 445 | static int diolan_u2c_probe(struct usb_interface *interface, |
| 446 | const struct usb_device_id *id) |
| 447 | { |
| 448 | struct i2c_diolan_u2c *dev; |
| 449 | int ret; |
| 450 | |
| 451 | /* allocate memory for our device state and initialize it */ |
| 452 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
| 453 | if (dev == NULL) { |
| 454 | dev_err(&interface->dev, "no memory for device state\n"); |
| 455 | ret = -ENOMEM; |
| 456 | goto error; |
| 457 | } |
| 458 | |
| 459 | dev->usb_dev = usb_get_dev(interface_to_usbdev(interface)); |
| 460 | dev->interface = interface; |
| 461 | |
| 462 | /* save our data pointer in this interface device */ |
| 463 | usb_set_intfdata(interface, dev); |
| 464 | |
| 465 | /* setup i2c adapter description */ |
| 466 | dev->adapter.owner = THIS_MODULE; |
| 467 | dev->adapter.class = I2C_CLASS_HWMON; |
| 468 | dev->adapter.algo = &diolan_usb_algorithm; |
| 469 | i2c_set_adapdata(&dev->adapter, dev); |
| 470 | snprintf(dev->adapter.name, sizeof(dev->adapter.name), |
| 471 | DRIVER_NAME " at bus %03d device %03d", |
| 472 | dev->usb_dev->bus->busnum, dev->usb_dev->devnum); |
| 473 | |
| 474 | dev->adapter.dev.parent = &dev->interface->dev; |
| 475 | |
| 476 | /* initialize diolan i2c interface */ |
| 477 | ret = diolan_init(dev); |
| 478 | if (ret < 0) { |
| 479 | dev_err(&interface->dev, "failed to initialize adapter\n"); |
| 480 | goto error_free; |
| 481 | } |
| 482 | |
| 483 | /* and finally attach to i2c layer */ |
| 484 | ret = i2c_add_adapter(&dev->adapter); |
| 485 | if (ret < 0) { |
| 486 | dev_err(&interface->dev, "failed to add I2C adapter\n"); |
| 487 | goto error_free; |
| 488 | } |
| 489 | |
| 490 | dev_dbg(&interface->dev, "connected " DRIVER_NAME "\n"); |
| 491 | |
| 492 | return 0; |
| 493 | |
| 494 | error_free: |
| 495 | usb_set_intfdata(interface, NULL); |
| 496 | diolan_u2c_free(dev); |
| 497 | error: |
| 498 | return ret; |
| 499 | } |
| 500 | |
| 501 | static void diolan_u2c_disconnect(struct usb_interface *interface) |
| 502 | { |
| 503 | struct i2c_diolan_u2c *dev = usb_get_intfdata(interface); |
| 504 | |
| 505 | i2c_del_adapter(&dev->adapter); |
| 506 | usb_set_intfdata(interface, NULL); |
| 507 | diolan_u2c_free(dev); |
| 508 | |
| 509 | dev_dbg(&interface->dev, "disconnected\n"); |
| 510 | } |
| 511 | |
| 512 | static struct usb_driver diolan_u2c_driver = { |
| 513 | .name = DRIVER_NAME, |
| 514 | .probe = diolan_u2c_probe, |
| 515 | .disconnect = diolan_u2c_disconnect, |
| 516 | .id_table = diolan_u2c_table, |
| 517 | }; |
| 518 | |
Greg Kroah-Hartman | fe74848 | 2011-11-18 09:52:10 -0800 | [diff] [blame] | 519 | module_usb_driver(diolan_u2c_driver); |
Guenter Roeck | 335d7c5 | 2011-01-26 11:45:49 -0800 | [diff] [blame] | 520 | |
Guenter Roeck | 83a638d | 2012-07-24 14:13:56 +0200 | [diff] [blame] | 521 | MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); |
Guenter Roeck | 335d7c5 | 2011-01-26 11:45:49 -0800 | [diff] [blame] | 522 | MODULE_DESCRIPTION(DRIVER_NAME " driver"); |
| 523 | MODULE_LICENSE("GPL"); |