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 */ 63enum { 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 */ 92enum { 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 102struct mcs7830_data { 103 u8 multi_filter[8]; 104 u8 config; 105}; 106 107static const char driver_name[] = "MOSCHIP usb-ethernet driver"; 108 109static int mcs7830_get_reg(struct usbnet *dev, u16 index, u16 size, void *data) 110{ 111 int ret; 112 113 ret = usbnet_read_cmd(dev, MCS7830_RD_BREQ, MCS7830_RD_BMREQ, 114 0x0000, index, data, size); 115 if (ret < 0) 116 return ret; 117 else if (ret < size) 118 return -ENODATA; 119 120 return ret; 121} 122 123static int mcs7830_set_reg(struct usbnet *dev, u16 index, u16 size, const void *data) 124{ 125 return usbnet_write_cmd(dev, MCS7830_WR_BREQ, MCS7830_WR_BMREQ, 126 0x0000, index, data, size); 127} 128 129static void mcs7830_set_reg_async(struct usbnet *dev, u16 index, u16 size, void *data) 130{ 131 usbnet_write_cmd_async(dev, MCS7830_WR_BREQ, MCS7830_WR_BMREQ, 132 0x0000, index, data, size); 133} 134 135static int mcs7830_hif_get_mac_address(struct usbnet *dev, unsigned char *addr) 136{ 137 int ret = mcs7830_get_reg(dev, HIF_REG_ETHERNET_ADDR, ETH_ALEN, addr); 138 if (ret < 0) 139 return ret; 140 return 0; 141} 142 143static int mcs7830_hif_set_mac_address(struct usbnet *dev, unsigned char *addr) 144{ 145 int ret = mcs7830_set_reg(dev, HIF_REG_ETHERNET_ADDR, ETH_ALEN, addr); 146 147 if (ret < 0) 148 return ret; 149 return 0; 150} 151 152static int mcs7830_set_mac_address(struct net_device *netdev, void *p) 153{ 154 int ret; 155 struct usbnet *dev = netdev_priv(netdev); 156 struct sockaddr *addr = p; 157 158 if (netif_running(netdev)) 159 return -EBUSY; 160 161 if (!is_valid_ether_addr(addr->sa_data)) 162 return -EADDRNOTAVAIL; 163 164 ret = mcs7830_hif_set_mac_address(dev, addr->sa_data); 165 166 if (ret < 0) 167 return ret; 168 169 /* it worked --> adopt it on netdev side */ 170 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); 171 172 return 0; 173} 174 175static int mcs7830_read_phy(struct usbnet *dev, u8 index) 176{ 177 int ret; 178 int i; 179 __le16 val; 180 181 u8 cmd[2] = { 182 HIF_REG_PHY_CMD1_READ | HIF_REG_PHY_CMD1_PHYADDR, 183 HIF_REG_PHY_CMD2_PEND_FLAG_BIT | index, 184 }; 185 186 mutex_lock(&dev->phy_mutex); 187 /* write the MII command */ 188 ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 189 if (ret < 0) 190 goto out; 191 192 /* wait for the data to become valid, should be within < 1ms */ 193 for (i = 0; i < 10; i++) { 194 ret = mcs7830_get_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 195 if ((ret < 0) || (cmd[1] & HIF_REG_PHY_CMD2_READY_FLAG_BIT)) 196 break; 197 ret = -EIO; 198 msleep(1); 199 } 200 if (ret < 0) 201 goto out; 202 203 /* read actual register contents */ 204 ret = mcs7830_get_reg(dev, HIF_REG_PHY_DATA, 2, &val); 205 if (ret < 0) 206 goto out; 207 ret = le16_to_cpu(val); 208 dev_dbg(&dev->udev->dev, "read PHY reg %02x: %04x (%d tries)\n", 209 index, val, i); 210out: 211 mutex_unlock(&dev->phy_mutex); 212 return ret; 213} 214 215static int mcs7830_write_phy(struct usbnet *dev, u8 index, u16 val) 216{ 217 int ret; 218 int i; 219 __le16 le_val; 220 221 u8 cmd[2] = { 222 HIF_REG_PHY_CMD1_WRITE | HIF_REG_PHY_CMD1_PHYADDR, 223 HIF_REG_PHY_CMD2_PEND_FLAG_BIT | (index & 0x1F), 224 }; 225 226 mutex_lock(&dev->phy_mutex); 227 228 /* write the new register contents */ 229 le_val = cpu_to_le16(val); 230 ret = mcs7830_set_reg(dev, HIF_REG_PHY_DATA, 2, &le_val); 231 if (ret < 0) 232 goto out; 233 234 /* write the MII command */ 235 ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 236 if (ret < 0) 237 goto out; 238 239 /* wait for the command to be accepted by the PHY */ 240 for (i = 0; i < 10; i++) { 241 ret = mcs7830_get_reg(dev, HIF_REG_PHY_CMD1, 2, cmd); 242 if ((ret < 0) || (cmd[1] & HIF_REG_PHY_CMD2_READY_FLAG_BIT)) 243 break; 244 ret = -EIO; 245 msleep(1); 246 } 247 if (ret < 0) 248 goto out; 249 250 ret = 0; 251 dev_dbg(&dev->udev->dev, "write PHY reg %02x: %04x (%d tries)\n", 252 index, val, i); 253out: 254 mutex_unlock(&dev->phy_mutex); 255 return ret; 256} 257 258/* 259 * This algorithm comes from the original mcs7830 version 1.4 driver, 260 * not sure if it is needed. 261 */ 262static int mcs7830_set_autoneg(struct usbnet *dev, int ptrUserPhyMode) 263{ 264 int ret; 265 /* Enable all media types */ 266 ret = mcs7830_write_phy(dev, MII_ADVERTISE, MCS7830_MII_ADVERTISE); 267 268 /* First reset BMCR */ 269 if (!ret) 270 ret = mcs7830_write_phy(dev, MII_BMCR, 0x0000); 271 /* Enable Auto Neg */ 272 if (!ret) 273 ret = mcs7830_write_phy(dev, MII_BMCR, BMCR_ANENABLE); 274 /* Restart Auto Neg (Keep the Enable Auto Neg Bit Set) */ 275 if (!ret) 276 ret = mcs7830_write_phy(dev, MII_BMCR, 277 BMCR_ANENABLE | BMCR_ANRESTART ); 278 return ret; 279} 280 281 282/* 283 * if we can read register 22, the chip revision is C or higher 284 */ 285static int mcs7830_get_rev(struct usbnet *dev) 286{ 287 u8 dummy[2]; 288 int ret; 289 ret = mcs7830_get_reg(dev, HIF_REG_FRAME_DROP_COUNTER, 2, dummy); 290 if (ret > 0) 291 return 2; /* Rev C or later */ 292 return 1; /* earlier revision */ 293} 294 295/* 296 * On rev. C we need to set the pause threshold 297 */ 298static void mcs7830_rev_C_fixup(struct usbnet *dev) 299{ 300 u8 pause_threshold = HIF_REG_PAUSE_THRESHOLD_DEFAULT; 301 int retry; 302 303 for (retry = 0; retry < 2; retry++) { 304 if (mcs7830_get_rev(dev) == 2) { 305 dev_info(&dev->udev->dev, "applying rev.C fixup\n"); 306 mcs7830_set_reg(dev, HIF_REG_PAUSE_THRESHOLD, 307 1, &pause_threshold); 308 } 309 msleep(1); 310 } 311} 312 313static int mcs7830_mdio_read(struct net_device *netdev, int phy_id, 314 int location) 315{ 316 struct usbnet *dev = netdev_priv(netdev); 317 return mcs7830_read_phy(dev, location); 318} 319 320static void mcs7830_mdio_write(struct net_device *netdev, int phy_id, 321 int location, int val) 322{ 323 struct usbnet *dev = netdev_priv(netdev); 324 mcs7830_write_phy(dev, location, val); 325} 326 327static int mcs7830_ioctl(struct net_device *net, struct ifreq *rq, int cmd) 328{ 329 struct usbnet *dev = netdev_priv(net); 330 return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); 331} 332 333static inline struct mcs7830_data *mcs7830_get_data(struct usbnet *dev) 334{ 335 return (struct mcs7830_data *)&dev->data; 336} 337 338static void mcs7830_hif_update_multicast_hash(struct usbnet *dev) 339{ 340 struct mcs7830_data *data = mcs7830_get_data(dev); 341 mcs7830_set_reg_async(dev, HIF_REG_MULTICAST_HASH, 342 sizeof data->multi_filter, 343 data->multi_filter); 344} 345 346static void mcs7830_hif_update_config(struct usbnet *dev) 347{ 348 /* implementation specific to data->config 349 (argument needs to be heap-based anyway - USB DMA!) */ 350 struct mcs7830_data *data = mcs7830_get_data(dev); 351 mcs7830_set_reg_async(dev, HIF_REG_CONFIG, 1, &data->config); 352} 353 354static void mcs7830_data_set_multicast(struct net_device *net) 355{ 356 struct usbnet *dev = netdev_priv(net); 357 struct mcs7830_data *data = mcs7830_get_data(dev); 358 359 memset(data->multi_filter, 0, sizeof data->multi_filter); 360 361 data->config = HIF_REG_CONFIG_TXENABLE; 362 363 /* this should not be needed, but it doesn't work otherwise */ 364 data->config |= HIF_REG_CONFIG_ALLMULTICAST; 365 366 if (net->flags & IFF_PROMISC) { 367 data->config |= HIF_REG_CONFIG_PROMISCUOUS; 368 } else if (net->flags & IFF_ALLMULTI || 369 netdev_mc_count(net) > MCS7830_MAX_MCAST) { 370 data->config |= HIF_REG_CONFIG_ALLMULTICAST; 371 } else if (netdev_mc_empty(net)) { 372 /* just broadcast and directed */ 373 } else { 374 /* We use the 20 byte dev->data 375 * for our 8 byte filter buffer 376 * to avoid allocating memory that 377 * is tricky to free later */ 378 struct netdev_hw_addr *ha; 379 u32 crc_bits; 380 381 /* Build the multicast hash filter. */ 382 netdev_for_each_mc_addr(ha, net) { 383 crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26; 384 data->multi_filter[crc_bits >> 3] |= 1 << (crc_bits & 7); 385 } 386 } 387} 388 389static int mcs7830_apply_base_config(struct usbnet *dev) 390{ 391 int ret; 392 393 /* re-configure known MAC (suspend case etc.) */ 394 ret = mcs7830_hif_set_mac_address(dev, dev->net->dev_addr); 395 if (ret) { 396 dev_info(&dev->udev->dev, "Cannot set MAC address\n"); 397 goto out; 398 } 399 400 /* Set up PHY */ 401 ret = mcs7830_set_autoneg(dev, 0); 402 if (ret) { 403 dev_info(&dev->udev->dev, "Cannot set autoneg\n"); 404 goto out; 405 } 406 407 mcs7830_hif_update_multicast_hash(dev); 408 mcs7830_hif_update_config(dev); 409 410 mcs7830_rev_C_fixup(dev); 411 ret = 0; 412out: 413 return ret; 414} 415 416/* credits go to asix_set_multicast */ 417static void mcs7830_set_multicast(struct net_device *net) 418{ 419 struct usbnet *dev = netdev_priv(net); 420 421 mcs7830_data_set_multicast(net); 422 423 mcs7830_hif_update_multicast_hash(dev); 424 mcs7830_hif_update_config(dev); 425} 426 427static int mcs7830_get_regs_len(struct net_device *net) 428{ 429 struct usbnet *dev = netdev_priv(net); 430 431 switch (mcs7830_get_rev(dev)) { 432 case 1: 433 return 21; 434 case 2: 435 return 32; 436 } 437 return 0; 438} 439 440static void mcs7830_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *drvinfo) 441{ 442 usbnet_get_drvinfo(net, drvinfo); 443} 444 445static void mcs7830_get_regs(struct net_device *net, struct ethtool_regs *regs, void *data) 446{ 447 struct usbnet *dev = netdev_priv(net); 448 449 regs->version = mcs7830_get_rev(dev); 450 mcs7830_get_reg(dev, 0, regs->len, data); 451} 452 453static const struct ethtool_ops mcs7830_ethtool_ops = { 454 .get_drvinfo = mcs7830_get_drvinfo, 455 .get_regs_len = mcs7830_get_regs_len, 456 .get_regs = mcs7830_get_regs, 457 458 /* common usbnet calls */ 459 .get_link = usbnet_get_link, 460 .get_msglevel = usbnet_get_msglevel, 461 .set_msglevel = usbnet_set_msglevel, 462 .nway_reset = usbnet_nway_reset, 463 .get_link_ksettings = usbnet_get_link_ksettings, 464 .set_link_ksettings = usbnet_set_link_ksettings, 465}; 466 467static const struct net_device_ops mcs7830_netdev_ops = { 468 .ndo_open = usbnet_open, 469 .ndo_stop = usbnet_stop, 470 .ndo_start_xmit = usbnet_start_xmit, 471 .ndo_tx_timeout = usbnet_tx_timeout, 472 .ndo_change_mtu = usbnet_change_mtu, 473 .ndo_get_stats64 = usbnet_get_stats64, 474 .ndo_validate_addr = eth_validate_addr, 475 .ndo_do_ioctl = mcs7830_ioctl, 476 .ndo_set_rx_mode = mcs7830_set_multicast, 477 .ndo_set_mac_address = mcs7830_set_mac_address, 478}; 479 480static int mcs7830_bind(struct usbnet *dev, struct usb_interface *udev) 481{ 482 struct net_device *net = dev->net; 483 int ret; 484 int retry; 485 486 /* Initial startup: Gather MAC address setting from EEPROM */ 487 ret = -EINVAL; 488 for (retry = 0; retry < 5 && ret; retry++) 489 ret = mcs7830_hif_get_mac_address(dev, net->dev_addr); 490 if (ret) { 491 dev_warn(&dev->udev->dev, "Cannot read MAC address\n"); 492 goto out; 493 } 494 495 mcs7830_data_set_multicast(net); 496 497 ret = mcs7830_apply_base_config(dev); 498 if (ret) 499 goto out; 500 501 net->ethtool_ops = &mcs7830_ethtool_ops; 502 net->netdev_ops = &mcs7830_netdev_ops; 503 504 /* reserve space for the status byte on rx */ 505 dev->rx_urb_size = ETH_FRAME_LEN + 1; 506 507 dev->mii.mdio_read = mcs7830_mdio_read; 508 dev->mii.mdio_write = mcs7830_mdio_write; 509 dev->mii.dev = net; 510 dev->mii.phy_id_mask = 0x3f; 511 dev->mii.reg_num_mask = 0x1f; 512 dev->mii.phy_id = *((u8 *) net->dev_addr + 1); 513 514 ret = usbnet_get_endpoints(dev, udev); 515out: 516 return ret; 517} 518 519/* The chip always appends a status byte that we need to strip */ 520static int mcs7830_rx_fixup(struct usbnet *dev, struct sk_buff *skb) 521{ 522 u8 status; 523 524 /* This check is no longer done by usbnet */ 525 if (skb->len < dev->net->hard_header_len) { 526 dev_err(&dev->udev->dev, "unexpected tiny rx frame\n"); 527 return 0; 528 } 529 530 skb_trim(skb, skb->len - 1); 531 status = skb->data[skb->len]; 532 533 if (status != MCS7830_RX_FRAME_CORRECT) { 534 dev_dbg(&dev->udev->dev, "rx fixup status %x\n", status); 535 536 /* hmm, perhaps usbnet.c already sees a globally visible 537 frame error and increments rx_errors on its own already? */ 538 dev->net->stats.rx_errors++; 539 540 if (status & (MCS7830_RX_SHORT_FRAME 541 |MCS7830_RX_LENGTH_ERROR 542 |MCS7830_RX_LARGE_FRAME)) 543 dev->net->stats.rx_length_errors++; 544 if (status & MCS7830_RX_ALIGNMENT_ERROR) 545 dev->net->stats.rx_frame_errors++; 546 if (status & MCS7830_RX_CRC_ERROR) 547 dev->net->stats.rx_crc_errors++; 548 } 549 550 return skb->len > 0; 551} 552 553static void mcs7830_status(struct usbnet *dev, struct urb *urb) 554{ 555 u8 *buf = urb->transfer_buffer; 556 bool link, link_changed; 557 558 if (urb->actual_length < 16) 559 return; 560 561 link = !(buf[1] == 0x20); 562 link_changed = netif_carrier_ok(dev->net) != link; 563 if (link_changed) { 564 usbnet_link_change(dev, link, 0); 565 netdev_dbg(dev->net, "Link Status is: %d\n", link); 566 } 567} 568 569static const struct driver_info moschip_info = { 570 .description = "MOSCHIP 7830/7832/7730 usb-NET adapter", 571 .bind = mcs7830_bind, 572 .rx_fixup = mcs7830_rx_fixup, 573 .flags = FLAG_ETHER | FLAG_LINK_INTR, 574 .status = mcs7830_status, 575 .in = 1, 576 .out = 2, 577}; 578 579static const struct driver_info sitecom_info = { 580 .description = "Sitecom LN-30 usb-NET adapter", 581 .bind = mcs7830_bind, 582 .rx_fixup = mcs7830_rx_fixup, 583 .flags = FLAG_ETHER | FLAG_LINK_INTR, 584 .status = mcs7830_status, 585 .in = 1, 586 .out = 2, 587}; 588 589static const struct usb_device_id products[] = { 590 { 591 USB_DEVICE(MCS7830_VENDOR_ID, MCS7832_PRODUCT_ID), 592 .driver_info = (unsigned long) &moschip_info, 593 }, 594 { 595 USB_DEVICE(MCS7830_VENDOR_ID, MCS7830_PRODUCT_ID), 596 .driver_info = (unsigned long) &moschip_info, 597 }, 598 { 599 USB_DEVICE(MCS7830_VENDOR_ID, MCS7730_PRODUCT_ID), 600 .driver_info = (unsigned long) &moschip_info, 601 }, 602 { 603 USB_DEVICE(SITECOM_VENDOR_ID, LN_030_PRODUCT_ID), 604 .driver_info = (unsigned long) &sitecom_info, 605 }, 606 {}, 607}; 608MODULE_DEVICE_TABLE(usb, products); 609 610static int mcs7830_reset_resume (struct usb_interface *intf) 611{ 612 /* YES, this function is successful enough that ethtool -d 613 does show same output pre-/post-suspend */ 614 615 struct usbnet *dev = usb_get_intfdata(intf); 616 617 mcs7830_apply_base_config(dev); 618 619 usbnet_resume(intf); 620 621 return 0; 622} 623 624static struct usb_driver mcs7830_driver = { 625 .name = driver_name, 626 .id_table = products, 627 .probe = usbnet_probe, 628 .disconnect = usbnet_disconnect, 629 .suspend = usbnet_suspend, 630 .resume = usbnet_resume, 631 .reset_resume = mcs7830_reset_resume, 632 .disable_hub_initiated_lpm = 1, 633}; 634 635module_usb_driver(mcs7830_driver); 636 637MODULE_DESCRIPTION("USB to network adapter MCS7830)"); 638MODULE_LICENSE("GPL"); 639