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, 136 const unsigned char *addr) 137 { 138 int ret = mcs7830_set_reg(dev, HIF_REG_ETHERNET_ADDR, ETH_ALEN, addr); 139 140 if (ret < 0) 141 return ret; 142 return 0; 143 } 144 145 static int mcs7830_set_mac_address(struct net_device *netdev, void *p) 146 { 147 int ret; 148 struct usbnet *dev = netdev_priv(netdev); 149 struct sockaddr *addr = p; 150 151 if (netif_running(netdev)) 152 return -EBUSY; 153 154 if (!is_valid_ether_addr(addr->sa_data)) 155 return -EADDRNOTAVAIL; 156 157 ret = mcs7830_hif_set_mac_address(dev, addr->sa_data); 158 159 if (ret < 0) 160 return ret; 161 162 /* it worked --> adopt it on netdev side */ 163 eth_hw_addr_set(netdev, addr->sa_data); 164 165 return 0; 166 } 167 168 static int mcs7830_read_phy(struct usbnet *dev, u8 index) 169 { 170 int ret; 171 int i; 172 __le16 val; 173 174 u8 cmd[2] = { 175 HIF_REG_PHY_CMD1_READ | HIF_REG_PHY_CMD1_PHYADDR, 176 HIF_REG_PHY_CMD2_PEND_FLAG_BIT | index, 177 }; 178 179 mutex_lock(&dev->phy_mutex); 180 /* write the MII command */ 181 ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 182 if (ret < 0) 183 goto out; 184 185 /* wait for the data to become valid, should be within < 1ms */ 186 for (i = 0; i < 10; i++) { 187 ret = mcs7830_get_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 188 if ((ret < 0) || (cmd[1] & HIF_REG_PHY_CMD2_READY_FLAG_BIT)) 189 break; 190 ret = -EIO; 191 msleep(1); 192 } 193 if (ret < 0) 194 goto out; 195 196 /* read actual register contents */ 197 ret = mcs7830_get_reg(dev, HIF_REG_PHY_DATA, 2, &val); 198 if (ret < 0) 199 goto out; 200 ret = le16_to_cpu(val); 201 dev_dbg(&dev->udev->dev, "read PHY reg %02x: %04x (%d tries)\n", 202 index, val, i); 203 out: 204 mutex_unlock(&dev->phy_mutex); 205 return ret; 206 } 207 208 static int mcs7830_write_phy(struct usbnet *dev, u8 index, u16 val) 209 { 210 int ret; 211 int i; 212 __le16 le_val; 213 214 u8 cmd[2] = { 215 HIF_REG_PHY_CMD1_WRITE | HIF_REG_PHY_CMD1_PHYADDR, 216 HIF_REG_PHY_CMD2_PEND_FLAG_BIT | (index & 0x1F), 217 }; 218 219 mutex_lock(&dev->phy_mutex); 220 221 /* write the new register contents */ 222 le_val = cpu_to_le16(val); 223 ret = mcs7830_set_reg(dev, HIF_REG_PHY_DATA, 2, &le_val); 224 if (ret < 0) 225 goto out; 226 227 /* write the MII command */ 228 ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 229 if (ret < 0) 230 goto out; 231 232 /* wait for the command to be accepted by the PHY */ 233 for (i = 0; i < 10; i++) { 234 ret = mcs7830_get_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 235 if ((ret < 0) || (cmd[1] & HIF_REG_PHY_CMD2_READY_FLAG_BIT)) 236 break; 237 ret = -EIO; 238 msleep(1); 239 } 240 if (ret < 0) 241 goto out; 242 243 ret = 0; 244 dev_dbg(&dev->udev->dev, "write PHY reg %02x: %04x (%d tries)\n", 245 index, val, i); 246 out: 247 mutex_unlock(&dev->phy_mutex); 248 return ret; 249 } 250 251 /* 252 * This algorithm comes from the original mcs7830 version 1.4 driver, 253 * not sure if it is needed. 254 */ 255 static int mcs7830_set_autoneg(struct usbnet *dev, int ptrUserPhyMode) 256 { 257 int ret; 258 /* Enable all media types */ 259 ret = mcs7830_write_phy(dev, MII_ADVERTISE, MCS7830_MII_ADVERTISE); 260 261 /* First reset BMCR */ 262 if (!ret) 263 ret = mcs7830_write_phy(dev, MII_BMCR, 0x0000); 264 /* Enable Auto Neg */ 265 if (!ret) 266 ret = mcs7830_write_phy(dev, MII_BMCR, BMCR_ANENABLE); 267 /* Restart Auto Neg (Keep the Enable Auto Neg Bit Set) */ 268 if (!ret) 269 ret = mcs7830_write_phy(dev, MII_BMCR, 270 BMCR_ANENABLE | BMCR_ANRESTART ); 271 return ret; 272 } 273 274 275 /* 276 * if we can read register 22, the chip revision is C or higher 277 */ 278 static int mcs7830_get_rev(struct usbnet *dev) 279 { 280 u8 dummy[2]; 281 int ret; 282 ret = mcs7830_get_reg(dev, HIF_REG_FRAME_DROP_COUNTER, 2, dummy); 283 if (ret > 0) 284 return 2; /* Rev C or later */ 285 return 1; /* earlier revision */ 286 } 287 288 /* 289 * On rev. C we need to set the pause threshold 290 */ 291 static void mcs7830_rev_C_fixup(struct usbnet *dev) 292 { 293 u8 pause_threshold = HIF_REG_PAUSE_THRESHOLD_DEFAULT; 294 int retry; 295 296 for (retry = 0; retry < 2; retry++) { 297 if (mcs7830_get_rev(dev) == 2) { 298 dev_info(&dev->udev->dev, "applying rev.C fixup\n"); 299 mcs7830_set_reg(dev, HIF_REG_PAUSE_THRESHOLD, 300 1, &pause_threshold); 301 } 302 msleep(1); 303 } 304 } 305 306 static int mcs7830_mdio_read(struct net_device *netdev, int phy_id, 307 int location) 308 { 309 struct usbnet *dev = netdev_priv(netdev); 310 return mcs7830_read_phy(dev, location); 311 } 312 313 static void mcs7830_mdio_write(struct net_device *netdev, int phy_id, 314 int location, int val) 315 { 316 struct usbnet *dev = netdev_priv(netdev); 317 mcs7830_write_phy(dev, location, val); 318 } 319 320 static int mcs7830_ioctl(struct net_device *net, struct ifreq *rq, int cmd) 321 { 322 struct usbnet *dev = netdev_priv(net); 323 return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); 324 } 325 326 static inline struct mcs7830_data *mcs7830_get_data(struct usbnet *dev) 327 { 328 return (struct mcs7830_data *)&dev->data; 329 } 330 331 static void mcs7830_hif_update_multicast_hash(struct usbnet *dev) 332 { 333 struct mcs7830_data *data = mcs7830_get_data(dev); 334 mcs7830_set_reg_async(dev, HIF_REG_MULTICAST_HASH, 335 sizeof data->multi_filter, 336 data->multi_filter); 337 } 338 339 static void mcs7830_hif_update_config(struct usbnet *dev) 340 { 341 /* implementation specific to data->config 342 (argument needs to be heap-based anyway - USB DMA!) */ 343 struct mcs7830_data *data = mcs7830_get_data(dev); 344 mcs7830_set_reg_async(dev, HIF_REG_CONFIG, 1, &data->config); 345 } 346 347 static void mcs7830_data_set_multicast(struct net_device *net) 348 { 349 struct usbnet *dev = netdev_priv(net); 350 struct mcs7830_data *data = mcs7830_get_data(dev); 351 352 memset(data->multi_filter, 0, sizeof data->multi_filter); 353 354 data->config = HIF_REG_CONFIG_TXENABLE; 355 356 /* this should not be needed, but it doesn't work otherwise */ 357 data->config |= HIF_REG_CONFIG_ALLMULTICAST; 358 359 if (net->flags & IFF_PROMISC) { 360 data->config |= HIF_REG_CONFIG_PROMISCUOUS; 361 } else if (net->flags & IFF_ALLMULTI || 362 netdev_mc_count(net) > MCS7830_MAX_MCAST) { 363 data->config |= HIF_REG_CONFIG_ALLMULTICAST; 364 } else if (netdev_mc_empty(net)) { 365 /* just broadcast and directed */ 366 } else { 367 /* We use the 20 byte dev->data 368 * for our 8 byte filter buffer 369 * to avoid allocating memory that 370 * is tricky to free later */ 371 struct netdev_hw_addr *ha; 372 u32 crc_bits; 373 374 /* Build the multicast hash filter. */ 375 netdev_for_each_mc_addr(ha, net) { 376 crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26; 377 data->multi_filter[crc_bits >> 3] |= 1 << (crc_bits & 7); 378 } 379 } 380 } 381 382 static int mcs7830_apply_base_config(struct usbnet *dev) 383 { 384 int ret; 385 386 /* re-configure known MAC (suspend case etc.) */ 387 ret = mcs7830_hif_set_mac_address(dev, dev->net->dev_addr); 388 if (ret) { 389 dev_info(&dev->udev->dev, "Cannot set MAC address\n"); 390 goto out; 391 } 392 393 /* Set up PHY */ 394 ret = mcs7830_set_autoneg(dev, 0); 395 if (ret) { 396 dev_info(&dev->udev->dev, "Cannot set autoneg\n"); 397 goto out; 398 } 399 400 mcs7830_hif_update_multicast_hash(dev); 401 mcs7830_hif_update_config(dev); 402 403 mcs7830_rev_C_fixup(dev); 404 ret = 0; 405 out: 406 return ret; 407 } 408 409 /* credits go to asix_set_multicast */ 410 static void mcs7830_set_multicast(struct net_device *net) 411 { 412 struct usbnet *dev = netdev_priv(net); 413 414 mcs7830_data_set_multicast(net); 415 416 mcs7830_hif_update_multicast_hash(dev); 417 mcs7830_hif_update_config(dev); 418 } 419 420 static int mcs7830_get_regs_len(struct net_device *net) 421 { 422 struct usbnet *dev = netdev_priv(net); 423 424 switch (mcs7830_get_rev(dev)) { 425 case 1: 426 return 21; 427 case 2: 428 return 32; 429 } 430 return 0; 431 } 432 433 static void mcs7830_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *drvinfo) 434 { 435 usbnet_get_drvinfo(net, drvinfo); 436 } 437 438 static void mcs7830_get_regs(struct net_device *net, struct ethtool_regs *regs, void *data) 439 { 440 struct usbnet *dev = netdev_priv(net); 441 442 regs->version = mcs7830_get_rev(dev); 443 mcs7830_get_reg(dev, 0, regs->len, data); 444 } 445 446 static const struct ethtool_ops mcs7830_ethtool_ops = { 447 .get_drvinfo = mcs7830_get_drvinfo, 448 .get_regs_len = mcs7830_get_regs_len, 449 .get_regs = mcs7830_get_regs, 450 451 /* common usbnet calls */ 452 .get_link = usbnet_get_link, 453 .get_msglevel = usbnet_get_msglevel, 454 .set_msglevel = usbnet_set_msglevel, 455 .nway_reset = usbnet_nway_reset, 456 .get_link_ksettings = usbnet_get_link_ksettings_mii, 457 .set_link_ksettings = usbnet_set_link_ksettings_mii, 458 }; 459 460 static const struct net_device_ops mcs7830_netdev_ops = { 461 .ndo_open = usbnet_open, 462 .ndo_stop = usbnet_stop, 463 .ndo_start_xmit = usbnet_start_xmit, 464 .ndo_tx_timeout = usbnet_tx_timeout, 465 .ndo_change_mtu = usbnet_change_mtu, 466 .ndo_get_stats64 = dev_get_tstats64, 467 .ndo_validate_addr = eth_validate_addr, 468 .ndo_eth_ioctl = mcs7830_ioctl, 469 .ndo_set_rx_mode = mcs7830_set_multicast, 470 .ndo_set_mac_address = mcs7830_set_mac_address, 471 }; 472 473 static int mcs7830_bind(struct usbnet *dev, struct usb_interface *udev) 474 { 475 struct net_device *net = dev->net; 476 int ret; 477 int retry; 478 479 /* Initial startup: Gather MAC address setting from EEPROM */ 480 ret = -EINVAL; 481 for (retry = 0; retry < 5 && ret; retry++) 482 ret = mcs7830_hif_get_mac_address(dev, net->dev_addr); 483 if (ret) { 484 dev_warn(&dev->udev->dev, "Cannot read MAC address\n"); 485 goto out; 486 } 487 488 mcs7830_data_set_multicast(net); 489 490 ret = mcs7830_apply_base_config(dev); 491 if (ret) 492 goto out; 493 494 net->ethtool_ops = &mcs7830_ethtool_ops; 495 net->netdev_ops = &mcs7830_netdev_ops; 496 497 /* reserve space for the status byte on rx */ 498 dev->rx_urb_size = ETH_FRAME_LEN + 1; 499 500 dev->mii.mdio_read = mcs7830_mdio_read; 501 dev->mii.mdio_write = mcs7830_mdio_write; 502 dev->mii.dev = net; 503 dev->mii.phy_id_mask = 0x3f; 504 dev->mii.reg_num_mask = 0x1f; 505 dev->mii.phy_id = *((u8 *) net->dev_addr + 1); 506 507 ret = usbnet_get_endpoints(dev, udev); 508 out: 509 return ret; 510 } 511 512 /* The chip always appends a status byte that we need to strip */ 513 static int mcs7830_rx_fixup(struct usbnet *dev, struct sk_buff *skb) 514 { 515 u8 status; 516 517 /* This check is no longer done by usbnet */ 518 if (skb->len < dev->net->hard_header_len) { 519 dev_err(&dev->udev->dev, "unexpected tiny rx frame\n"); 520 return 0; 521 } 522 523 skb_trim(skb, skb->len - 1); 524 status = skb->data[skb->len]; 525 526 if (status != MCS7830_RX_FRAME_CORRECT) { 527 dev_dbg(&dev->udev->dev, "rx fixup status %x\n", status); 528 529 /* hmm, perhaps usbnet.c already sees a globally visible 530 frame error and increments rx_errors on its own already? */ 531 dev->net->stats.rx_errors++; 532 533 if (status & (MCS7830_RX_SHORT_FRAME 534 |MCS7830_RX_LENGTH_ERROR 535 |MCS7830_RX_LARGE_FRAME)) 536 dev->net->stats.rx_length_errors++; 537 if (status & MCS7830_RX_ALIGNMENT_ERROR) 538 dev->net->stats.rx_frame_errors++; 539 if (status & MCS7830_RX_CRC_ERROR) 540 dev->net->stats.rx_crc_errors++; 541 } 542 543 return skb->len > 0; 544 } 545 546 static void mcs7830_status(struct usbnet *dev, struct urb *urb) 547 { 548 u8 *buf = urb->transfer_buffer; 549 bool link, link_changed; 550 551 if (urb->actual_length < 16) 552 return; 553 554 link = !(buf[1] == 0x20); 555 link_changed = netif_carrier_ok(dev->net) != link; 556 if (link_changed) { 557 usbnet_link_change(dev, link, 0); 558 netdev_dbg(dev->net, "Link Status is: %d\n", link); 559 } 560 } 561 562 static const struct driver_info moschip_info = { 563 .description = "MOSCHIP 7830/7832/7730 usb-NET adapter", 564 .bind = mcs7830_bind, 565 .rx_fixup = mcs7830_rx_fixup, 566 .flags = FLAG_ETHER | FLAG_LINK_INTR, 567 .status = mcs7830_status, 568 .in = 1, 569 .out = 2, 570 }; 571 572 static const struct driver_info sitecom_info = { 573 .description = "Sitecom LN-30 usb-NET adapter", 574 .bind = mcs7830_bind, 575 .rx_fixup = mcs7830_rx_fixup, 576 .flags = FLAG_ETHER | FLAG_LINK_INTR, 577 .status = mcs7830_status, 578 .in = 1, 579 .out = 2, 580 }; 581 582 static const struct usb_device_id products[] = { 583 { 584 USB_DEVICE(MCS7830_VENDOR_ID, MCS7832_PRODUCT_ID), 585 .driver_info = (unsigned long) &moschip_info, 586 }, 587 { 588 USB_DEVICE(MCS7830_VENDOR_ID, MCS7830_PRODUCT_ID), 589 .driver_info = (unsigned long) &moschip_info, 590 }, 591 { 592 USB_DEVICE(MCS7830_VENDOR_ID, MCS7730_PRODUCT_ID), 593 .driver_info = (unsigned long) &moschip_info, 594 }, 595 { 596 USB_DEVICE(SITECOM_VENDOR_ID, LN_030_PRODUCT_ID), 597 .driver_info = (unsigned long) &sitecom_info, 598 }, 599 {}, 600 }; 601 MODULE_DEVICE_TABLE(usb, products); 602 603 static int mcs7830_reset_resume (struct usb_interface *intf) 604 { 605 /* YES, this function is successful enough that ethtool -d 606 does show same output pre-/post-suspend */ 607 608 struct usbnet *dev = usb_get_intfdata(intf); 609 610 mcs7830_apply_base_config(dev); 611 612 usbnet_resume(intf); 613 614 return 0; 615 } 616 617 static struct usb_driver mcs7830_driver = { 618 .name = driver_name, 619 .id_table = products, 620 .probe = usbnet_probe, 621 .disconnect = usbnet_disconnect, 622 .suspend = usbnet_suspend, 623 .resume = usbnet_resume, 624 .reset_resume = mcs7830_reset_resume, 625 .disable_hub_initiated_lpm = 1, 626 }; 627 628 module_usb_driver(mcs7830_driver); 629 630 MODULE_DESCRIPTION("USB to network adapter MCS7830)"); 631 MODULE_LICENSE("GPL"); 632