1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * MOSCHIP MCS7830 based (7730/7830/7832) USB 2.0 Ethernet Devices 4 * 5 * based on usbnet.c, asix.c and the vendor provided mcs7830 driver 6 * 7 * Copyright (C) 2010 Andreas Mohr <andi@lisas.de> 8 * Copyright (C) 2006 Arnd Bergmann <arnd@arndb.de> 9 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com> 10 * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net> 11 * Copyright (c) 2002-2003 TiVo Inc. 12 * 13 * Definitions gathered from MOSCHIP, Data Sheet_7830DA.pdf (thanks!). 14 * 15 * 2010-12-19: add 7832 USB PID ("functionality same as MCS7830"), 16 * per active notification by manufacturer 17 * 18 * TODO: 19 * - support HIF_REG_CONFIG_SLEEPMODE/HIF_REG_CONFIG_TXENABLE (via autopm?) 20 * - implement ethtool_ops get_pauseparam/set_pauseparam 21 * via HIF_REG_PAUSE_THRESHOLD (>= revision C only!) 22 * - implement get_eeprom/[set_eeprom] 23 * - switch PHY on/off on ifup/ifdown (perhaps in usbnet.c, via MII) 24 * - mcs7830_get_regs() handling is weird: for rev 2 we return 32 regs, 25 * can access only ~ 24, remaining user buffer is uninitialized garbage 26 * - anything else? 27 */ 28 29 #include <linux/crc32.h> 30 #include <linux/etherdevice.h> 31 #include <linux/ethtool.h> 32 #include <linux/mii.h> 33 #include <linux/module.h> 34 #include <linux/netdevice.h> 35 #include <linux/slab.h> 36 #include <linux/usb.h> 37 #include <linux/usb/usbnet.h> 38 39 /* requests */ 40 #define MCS7830_RD_BMREQ (USB_DIR_IN | USB_TYPE_VENDOR | \ 41 USB_RECIP_DEVICE) 42 #define MCS7830_WR_BMREQ (USB_DIR_OUT | USB_TYPE_VENDOR | \ 43 USB_RECIP_DEVICE) 44 #define MCS7830_RD_BREQ 0x0E 45 #define MCS7830_WR_BREQ 0x0D 46 47 #define MCS7830_CTRL_TIMEOUT 1000 48 #define MCS7830_MAX_MCAST 64 49 50 #define MCS7830_VENDOR_ID 0x9710 51 #define MCS7832_PRODUCT_ID 0x7832 52 #define MCS7830_PRODUCT_ID 0x7830 53 #define MCS7730_PRODUCT_ID 0x7730 54 55 #define SITECOM_VENDOR_ID 0x0DF6 56 #define LN_030_PRODUCT_ID 0x0021 57 58 #define MCS7830_MII_ADVERTISE (ADVERTISE_PAUSE_CAP | ADVERTISE_100FULL | \ 59 ADVERTISE_100HALF | ADVERTISE_10FULL | \ 60 ADVERTISE_10HALF | ADVERTISE_CSMA) 61 62 /* HIF_REG_XX corresponding index value */ 63 enum { 64 HIF_REG_MULTICAST_HASH = 0x00, 65 HIF_REG_PACKET_GAP1 = 0x08, 66 HIF_REG_PACKET_GAP2 = 0x09, 67 HIF_REG_PHY_DATA = 0x0a, 68 HIF_REG_PHY_CMD1 = 0x0c, 69 HIF_REG_PHY_CMD1_READ = 0x40, 70 HIF_REG_PHY_CMD1_WRITE = 0x20, 71 HIF_REG_PHY_CMD1_PHYADDR = 0x01, 72 HIF_REG_PHY_CMD2 = 0x0d, 73 HIF_REG_PHY_CMD2_PEND_FLAG_BIT = 0x80, 74 HIF_REG_PHY_CMD2_READY_FLAG_BIT = 0x40, 75 HIF_REG_CONFIG = 0x0e, 76 /* hmm, spec sez: "R/W", "Except bit 3" (likely TXENABLE). */ 77 HIF_REG_CONFIG_CFG = 0x80, 78 HIF_REG_CONFIG_SPEED100 = 0x40, 79 HIF_REG_CONFIG_FULLDUPLEX_ENABLE = 0x20, 80 HIF_REG_CONFIG_RXENABLE = 0x10, 81 HIF_REG_CONFIG_TXENABLE = 0x08, 82 HIF_REG_CONFIG_SLEEPMODE = 0x04, 83 HIF_REG_CONFIG_ALLMULTICAST = 0x02, 84 HIF_REG_CONFIG_PROMISCUOUS = 0x01, 85 HIF_REG_ETHERNET_ADDR = 0x0f, 86 HIF_REG_FRAME_DROP_COUNTER = 0x15, /* 0..ff; reset: 0 */ 87 HIF_REG_PAUSE_THRESHOLD = 0x16, 88 HIF_REG_PAUSE_THRESHOLD_DEFAULT = 0, 89 }; 90 91 /* Trailing status byte in Ethernet Rx frame */ 92 enum { 93 MCS7830_RX_SHORT_FRAME = 0x01, /* < 64 bytes */ 94 MCS7830_RX_LENGTH_ERROR = 0x02, /* framelen != Ethernet length field */ 95 MCS7830_RX_ALIGNMENT_ERROR = 0x04, /* non-even number of nibbles */ 96 MCS7830_RX_CRC_ERROR = 0x08, 97 MCS7830_RX_LARGE_FRAME = 0x10, /* > 1518 bytes */ 98 MCS7830_RX_FRAME_CORRECT = 0x20, /* frame is correct */ 99 /* [7:6] reserved */ 100 }; 101 102 struct mcs7830_data { 103 u8 multi_filter[8]; 104 u8 config; 105 }; 106 107 static const char driver_name[] = "MOSCHIP usb-ethernet driver"; 108 109 static int mcs7830_get_reg(struct usbnet *dev, u16 index, u16 size, void *data) 110 { 111 return usbnet_read_cmd(dev, MCS7830_RD_BREQ, MCS7830_RD_BMREQ, 112 0x0000, index, data, size); 113 } 114 115 static int mcs7830_set_reg(struct usbnet *dev, u16 index, u16 size, const void *data) 116 { 117 return usbnet_write_cmd(dev, MCS7830_WR_BREQ, MCS7830_WR_BMREQ, 118 0x0000, index, data, size); 119 } 120 121 static void mcs7830_set_reg_async(struct usbnet *dev, u16 index, u16 size, void *data) 122 { 123 usbnet_write_cmd_async(dev, MCS7830_WR_BREQ, MCS7830_WR_BMREQ, 124 0x0000, index, data, size); 125 } 126 127 static int mcs7830_hif_get_mac_address(struct usbnet *dev, unsigned char *addr) 128 { 129 int ret = mcs7830_get_reg(dev, HIF_REG_ETHERNET_ADDR, ETH_ALEN, addr); 130 if (ret < 0) 131 return ret; 132 return 0; 133 } 134 135 static int mcs7830_hif_set_mac_address(struct usbnet *dev, unsigned char *addr) 136 { 137 int ret = mcs7830_set_reg(dev, HIF_REG_ETHERNET_ADDR, ETH_ALEN, addr); 138 139 if (ret < 0) 140 return ret; 141 return 0; 142 } 143 144 static int mcs7830_set_mac_address(struct net_device *netdev, void *p) 145 { 146 int ret; 147 struct usbnet *dev = netdev_priv(netdev); 148 struct sockaddr *addr = p; 149 150 if (netif_running(netdev)) 151 return -EBUSY; 152 153 if (!is_valid_ether_addr(addr->sa_data)) 154 return -EADDRNOTAVAIL; 155 156 ret = mcs7830_hif_set_mac_address(dev, addr->sa_data); 157 158 if (ret < 0) 159 return ret; 160 161 /* it worked --> adopt it on netdev side */ 162 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); 163 164 return 0; 165 } 166 167 static int mcs7830_read_phy(struct usbnet *dev, u8 index) 168 { 169 int ret; 170 int i; 171 __le16 val; 172 173 u8 cmd[2] = { 174 HIF_REG_PHY_CMD1_READ | HIF_REG_PHY_CMD1_PHYADDR, 175 HIF_REG_PHY_CMD2_PEND_FLAG_BIT | index, 176 }; 177 178 mutex_lock(&dev->phy_mutex); 179 /* write the MII command */ 180 ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 181 if (ret < 0) 182 goto out; 183 184 /* wait for the data to become valid, should be within < 1ms */ 185 for (i = 0; i < 10; i++) { 186 ret = mcs7830_get_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 187 if ((ret < 0) || (cmd[1] & HIF_REG_PHY_CMD2_READY_FLAG_BIT)) 188 break; 189 ret = -EIO; 190 msleep(1); 191 } 192 if (ret < 0) 193 goto out; 194 195 /* read actual register contents */ 196 ret = mcs7830_get_reg(dev, HIF_REG_PHY_DATA, 2, &val); 197 if (ret < 0) 198 goto out; 199 ret = le16_to_cpu(val); 200 dev_dbg(&dev->udev->dev, "read PHY reg %02x: %04x (%d tries)\n", 201 index, val, i); 202 out: 203 mutex_unlock(&dev->phy_mutex); 204 return ret; 205 } 206 207 static int mcs7830_write_phy(struct usbnet *dev, u8 index, u16 val) 208 { 209 int ret; 210 int i; 211 __le16 le_val; 212 213 u8 cmd[2] = { 214 HIF_REG_PHY_CMD1_WRITE | HIF_REG_PHY_CMD1_PHYADDR, 215 HIF_REG_PHY_CMD2_PEND_FLAG_BIT | (index & 0x1F), 216 }; 217 218 mutex_lock(&dev->phy_mutex); 219 220 /* write the new register contents */ 221 le_val = cpu_to_le16(val); 222 ret = mcs7830_set_reg(dev, HIF_REG_PHY_DATA, 2, &le_val); 223 if (ret < 0) 224 goto out; 225 226 /* write the MII command */ 227 ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 228 if (ret < 0) 229 goto out; 230 231 /* wait for the command to be accepted by the PHY */ 232 for (i = 0; i < 10; i++) { 233 ret = mcs7830_get_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 234 if ((ret < 0) || (cmd[1] & HIF_REG_PHY_CMD2_READY_FLAG_BIT)) 235 break; 236 ret = -EIO; 237 msleep(1); 238 } 239 if (ret < 0) 240 goto out; 241 242 ret = 0; 243 dev_dbg(&dev->udev->dev, "write PHY reg %02x: %04x (%d tries)\n", 244 index, val, i); 245 out: 246 mutex_unlock(&dev->phy_mutex); 247 return ret; 248 } 249 250 /* 251 * This algorithm comes from the original mcs7830 version 1.4 driver, 252 * not sure if it is needed. 253 */ 254 static int mcs7830_set_autoneg(struct usbnet *dev, int ptrUserPhyMode) 255 { 256 int ret; 257 /* Enable all media types */ 258 ret = mcs7830_write_phy(dev, MII_ADVERTISE, MCS7830_MII_ADVERTISE); 259 260 /* First reset BMCR */ 261 if (!ret) 262 ret = mcs7830_write_phy(dev, MII_BMCR, 0x0000); 263 /* Enable Auto Neg */ 264 if (!ret) 265 ret = mcs7830_write_phy(dev, MII_BMCR, BMCR_ANENABLE); 266 /* Restart Auto Neg (Keep the Enable Auto Neg Bit Set) */ 267 if (!ret) 268 ret = mcs7830_write_phy(dev, MII_BMCR, 269 BMCR_ANENABLE | BMCR_ANRESTART ); 270 return ret; 271 } 272 273 274 /* 275 * if we can read register 22, the chip revision is C or higher 276 */ 277 static int mcs7830_get_rev(struct usbnet *dev) 278 { 279 u8 dummy[2]; 280 int ret; 281 ret = mcs7830_get_reg(dev, HIF_REG_FRAME_DROP_COUNTER, 2, dummy); 282 if (ret > 0) 283 return 2; /* Rev C or later */ 284 return 1; /* earlier revision */ 285 } 286 287 /* 288 * On rev. C we need to set the pause threshold 289 */ 290 static void mcs7830_rev_C_fixup(struct usbnet *dev) 291 { 292 u8 pause_threshold = HIF_REG_PAUSE_THRESHOLD_DEFAULT; 293 int retry; 294 295 for (retry = 0; retry < 2; retry++) { 296 if (mcs7830_get_rev(dev) == 2) { 297 dev_info(&dev->udev->dev, "applying rev.C fixup\n"); 298 mcs7830_set_reg(dev, HIF_REG_PAUSE_THRESHOLD, 299 1, &pause_threshold); 300 } 301 msleep(1); 302 } 303 } 304 305 static int mcs7830_mdio_read(struct net_device *netdev, int phy_id, 306 int location) 307 { 308 struct usbnet *dev = netdev_priv(netdev); 309 return mcs7830_read_phy(dev, location); 310 } 311 312 static void mcs7830_mdio_write(struct net_device *netdev, int phy_id, 313 int location, int val) 314 { 315 struct usbnet *dev = netdev_priv(netdev); 316 mcs7830_write_phy(dev, location, val); 317 } 318 319 static int mcs7830_ioctl(struct net_device *net, struct ifreq *rq, int cmd) 320 { 321 struct usbnet *dev = netdev_priv(net); 322 return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); 323 } 324 325 static inline struct mcs7830_data *mcs7830_get_data(struct usbnet *dev) 326 { 327 return (struct mcs7830_data *)&dev->data; 328 } 329 330 static void mcs7830_hif_update_multicast_hash(struct usbnet *dev) 331 { 332 struct mcs7830_data *data = mcs7830_get_data(dev); 333 mcs7830_set_reg_async(dev, HIF_REG_MULTICAST_HASH, 334 sizeof data->multi_filter, 335 data->multi_filter); 336 } 337 338 static void mcs7830_hif_update_config(struct usbnet *dev) 339 { 340 /* implementation specific to data->config 341 (argument needs to be heap-based anyway - USB DMA!) */ 342 struct mcs7830_data *data = mcs7830_get_data(dev); 343 mcs7830_set_reg_async(dev, HIF_REG_CONFIG, 1, &data->config); 344 } 345 346 static void mcs7830_data_set_multicast(struct net_device *net) 347 { 348 struct usbnet *dev = netdev_priv(net); 349 struct mcs7830_data *data = mcs7830_get_data(dev); 350 351 memset(data->multi_filter, 0, sizeof data->multi_filter); 352 353 data->config = HIF_REG_CONFIG_TXENABLE; 354 355 /* this should not be needed, but it doesn't work otherwise */ 356 data->config |= HIF_REG_CONFIG_ALLMULTICAST; 357 358 if (net->flags & IFF_PROMISC) { 359 data->config |= HIF_REG_CONFIG_PROMISCUOUS; 360 } else if (net->flags & IFF_ALLMULTI || 361 netdev_mc_count(net) > MCS7830_MAX_MCAST) { 362 data->config |= HIF_REG_CONFIG_ALLMULTICAST; 363 } else if (netdev_mc_empty(net)) { 364 /* just broadcast and directed */ 365 } else { 366 /* We use the 20 byte dev->data 367 * for our 8 byte filter buffer 368 * to avoid allocating memory that 369 * is tricky to free later */ 370 struct netdev_hw_addr *ha; 371 u32 crc_bits; 372 373 /* Build the multicast hash filter. */ 374 netdev_for_each_mc_addr(ha, net) { 375 crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26; 376 data->multi_filter[crc_bits >> 3] |= 1 << (crc_bits & 7); 377 } 378 } 379 } 380 381 static int mcs7830_apply_base_config(struct usbnet *dev) 382 { 383 int ret; 384 385 /* re-configure known MAC (suspend case etc.) */ 386 ret = mcs7830_hif_set_mac_address(dev, dev->net->dev_addr); 387 if (ret) { 388 dev_info(&dev->udev->dev, "Cannot set MAC address\n"); 389 goto out; 390 } 391 392 /* Set up PHY */ 393 ret = mcs7830_set_autoneg(dev, 0); 394 if (ret) { 395 dev_info(&dev->udev->dev, "Cannot set autoneg\n"); 396 goto out; 397 } 398 399 mcs7830_hif_update_multicast_hash(dev); 400 mcs7830_hif_update_config(dev); 401 402 mcs7830_rev_C_fixup(dev); 403 ret = 0; 404 out: 405 return ret; 406 } 407 408 /* credits go to asix_set_multicast */ 409 static void mcs7830_set_multicast(struct net_device *net) 410 { 411 struct usbnet *dev = netdev_priv(net); 412 413 mcs7830_data_set_multicast(net); 414 415 mcs7830_hif_update_multicast_hash(dev); 416 mcs7830_hif_update_config(dev); 417 } 418 419 static int mcs7830_get_regs_len(struct net_device *net) 420 { 421 struct usbnet *dev = netdev_priv(net); 422 423 switch (mcs7830_get_rev(dev)) { 424 case 1: 425 return 21; 426 case 2: 427 return 32; 428 } 429 return 0; 430 } 431 432 static void mcs7830_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *drvinfo) 433 { 434 usbnet_get_drvinfo(net, drvinfo); 435 } 436 437 static void mcs7830_get_regs(struct net_device *net, struct ethtool_regs *regs, void *data) 438 { 439 struct usbnet *dev = netdev_priv(net); 440 441 regs->version = mcs7830_get_rev(dev); 442 mcs7830_get_reg(dev, 0, regs->len, data); 443 } 444 445 static const struct ethtool_ops mcs7830_ethtool_ops = { 446 .get_drvinfo = mcs7830_get_drvinfo, 447 .get_regs_len = mcs7830_get_regs_len, 448 .get_regs = mcs7830_get_regs, 449 450 /* common usbnet calls */ 451 .get_link = usbnet_get_link, 452 .get_msglevel = usbnet_get_msglevel, 453 .set_msglevel = usbnet_set_msglevel, 454 .nway_reset = usbnet_nway_reset, 455 .get_link_ksettings = usbnet_get_link_ksettings_mii, 456 .set_link_ksettings = usbnet_set_link_ksettings_mii, 457 }; 458 459 static const struct net_device_ops mcs7830_netdev_ops = { 460 .ndo_open = usbnet_open, 461 .ndo_stop = usbnet_stop, 462 .ndo_start_xmit = usbnet_start_xmit, 463 .ndo_tx_timeout = usbnet_tx_timeout, 464 .ndo_change_mtu = usbnet_change_mtu, 465 .ndo_get_stats64 = dev_get_tstats64, 466 .ndo_validate_addr = eth_validate_addr, 467 .ndo_do_ioctl = mcs7830_ioctl, 468 .ndo_set_rx_mode = mcs7830_set_multicast, 469 .ndo_set_mac_address = mcs7830_set_mac_address, 470 }; 471 472 static int mcs7830_bind(struct usbnet *dev, struct usb_interface *udev) 473 { 474 struct net_device *net = dev->net; 475 int ret; 476 int retry; 477 478 /* Initial startup: Gather MAC address setting from EEPROM */ 479 ret = -EINVAL; 480 for (retry = 0; retry < 5 && ret; retry++) 481 ret = mcs7830_hif_get_mac_address(dev, net->dev_addr); 482 if (ret) { 483 dev_warn(&dev->udev->dev, "Cannot read MAC address\n"); 484 goto out; 485 } 486 487 mcs7830_data_set_multicast(net); 488 489 ret = mcs7830_apply_base_config(dev); 490 if (ret) 491 goto out; 492 493 net->ethtool_ops = &mcs7830_ethtool_ops; 494 net->netdev_ops = &mcs7830_netdev_ops; 495 496 /* reserve space for the status byte on rx */ 497 dev->rx_urb_size = ETH_FRAME_LEN + 1; 498 499 dev->mii.mdio_read = mcs7830_mdio_read; 500 dev->mii.mdio_write = mcs7830_mdio_write; 501 dev->mii.dev = net; 502 dev->mii.phy_id_mask = 0x3f; 503 dev->mii.reg_num_mask = 0x1f; 504 dev->mii.phy_id = *((u8 *) net->dev_addr + 1); 505 506 ret = usbnet_get_endpoints(dev, udev); 507 out: 508 return ret; 509 } 510 511 /* The chip always appends a status byte that we need to strip */ 512 static int mcs7830_rx_fixup(struct usbnet *dev, struct sk_buff *skb) 513 { 514 u8 status; 515 516 /* This check is no longer done by usbnet */ 517 if (skb->len < dev->net->hard_header_len) { 518 dev_err(&dev->udev->dev, "unexpected tiny rx frame\n"); 519 return 0; 520 } 521 522 skb_trim(skb, skb->len - 1); 523 status = skb->data[skb->len]; 524 525 if (status != MCS7830_RX_FRAME_CORRECT) { 526 dev_dbg(&dev->udev->dev, "rx fixup status %x\n", status); 527 528 /* hmm, perhaps usbnet.c already sees a globally visible 529 frame error and increments rx_errors on its own already? */ 530 dev->net->stats.rx_errors++; 531 532 if (status & (MCS7830_RX_SHORT_FRAME 533 |MCS7830_RX_LENGTH_ERROR 534 |MCS7830_RX_LARGE_FRAME)) 535 dev->net->stats.rx_length_errors++; 536 if (status & MCS7830_RX_ALIGNMENT_ERROR) 537 dev->net->stats.rx_frame_errors++; 538 if (status & MCS7830_RX_CRC_ERROR) 539 dev->net->stats.rx_crc_errors++; 540 } 541 542 return skb->len > 0; 543 } 544 545 static void mcs7830_status(struct usbnet *dev, struct urb *urb) 546 { 547 u8 *buf = urb->transfer_buffer; 548 bool link, link_changed; 549 550 if (urb->actual_length < 16) 551 return; 552 553 link = !(buf[1] == 0x20); 554 link_changed = netif_carrier_ok(dev->net) != link; 555 if (link_changed) { 556 usbnet_link_change(dev, link, 0); 557 netdev_dbg(dev->net, "Link Status is: %d\n", link); 558 } 559 } 560 561 static const struct driver_info moschip_info = { 562 .description = "MOSCHIP 7830/7832/7730 usb-NET adapter", 563 .bind = mcs7830_bind, 564 .rx_fixup = mcs7830_rx_fixup, 565 .flags = FLAG_ETHER | FLAG_LINK_INTR, 566 .status = mcs7830_status, 567 .in = 1, 568 .out = 2, 569 }; 570 571 static const struct driver_info sitecom_info = { 572 .description = "Sitecom LN-30 usb-NET adapter", 573 .bind = mcs7830_bind, 574 .rx_fixup = mcs7830_rx_fixup, 575 .flags = FLAG_ETHER | FLAG_LINK_INTR, 576 .status = mcs7830_status, 577 .in = 1, 578 .out = 2, 579 }; 580 581 static const struct usb_device_id products[] = { 582 { 583 USB_DEVICE(MCS7830_VENDOR_ID, MCS7832_PRODUCT_ID), 584 .driver_info = (unsigned long) &moschip_info, 585 }, 586 { 587 USB_DEVICE(MCS7830_VENDOR_ID, MCS7830_PRODUCT_ID), 588 .driver_info = (unsigned long) &moschip_info, 589 }, 590 { 591 USB_DEVICE(MCS7830_VENDOR_ID, MCS7730_PRODUCT_ID), 592 .driver_info = (unsigned long) &moschip_info, 593 }, 594 { 595 USB_DEVICE(SITECOM_VENDOR_ID, LN_030_PRODUCT_ID), 596 .driver_info = (unsigned long) &sitecom_info, 597 }, 598 {}, 599 }; 600 MODULE_DEVICE_TABLE(usb, products); 601 602 static int mcs7830_reset_resume (struct usb_interface *intf) 603 { 604 /* YES, this function is successful enough that ethtool -d 605 does show same output pre-/post-suspend */ 606 607 struct usbnet *dev = usb_get_intfdata(intf); 608 609 mcs7830_apply_base_config(dev); 610 611 usbnet_resume(intf); 612 613 return 0; 614 } 615 616 static struct usb_driver mcs7830_driver = { 617 .name = driver_name, 618 .id_table = products, 619 .probe = usbnet_probe, 620 .disconnect = usbnet_disconnect, 621 .suspend = usbnet_suspend, 622 .resume = usbnet_resume, 623 .reset_resume = mcs7830_reset_resume, 624 .disable_hub_initiated_lpm = 1, 625 }; 626 627 module_usb_driver(mcs7830_driver); 628 629 MODULE_DESCRIPTION("USB to network adapter MCS7830)"); 630 MODULE_LICENSE("GPL"); 631