linux/drivers/tty/serial/8250/8250_pnp.c
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   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 *  Probe for 8250/16550-type ISAPNP serial ports.
   4 *
   5 *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
   6 *
   7 *  Copyright (C) 2001 Russell King, All Rights Reserved.
   8 *
   9 *  Ported to the Linux PnP Layer - (C) Adam Belay.
  10 */
  11#include <linux/module.h>
  12#include <linux/pci.h>
  13#include <linux/pnp.h>
  14#include <linux/string.h>
  15#include <linux/kernel.h>
  16#include <linux/property.h>
  17#include <linux/serial_core.h>
  18#include <linux/bitops.h>
  19
  20#include <asm/byteorder.h>
  21
  22#include "8250.h"
  23
  24#define UNKNOWN_DEV 0x3000
  25#define CIR_PORT        0x0800
  26
  27static const struct pnp_device_id pnp_dev_table[] = {
  28        /* Archtek America Corp. */
  29        /* Archtek SmartLink Modem 3334BT Plug & Play */
  30        {       "AAC000F",              0       },
  31        /* Anchor Datacomm BV */
  32        /* SXPro 144 External Data Fax Modem Plug & Play */
  33        {       "ADC0001",              0       },
  34        /* SXPro 288 External Data Fax Modem Plug & Play */
  35        {       "ADC0002",              0       },
  36        /* PROLiNK 1456VH ISA PnP K56flex Fax Modem */
  37        {       "AEI0250",              0       },
  38        /* Actiontec ISA PNP 56K X2 Fax Modem */
  39        {       "AEI1240",              0       },
  40        /* Rockwell 56K ACF II Fax+Data+Voice Modem */
  41        {       "AKY1021",              0 /*SPCI_FL_NO_SHIRQ*/  },
  42        /*
  43         * ALi Fast Infrared Controller
  44         * Native driver (ali-ircc) is broken so at least
  45         * it can be used with irtty-sir.
  46         */
  47        {       "ALI5123",              0       },
  48        /* AZT3005 PnP SOUND DEVICE */
  49        {       "AZT4001",              0       },
  50        /* Best Data Products Inc. Smart One 336F PnP Modem */
  51        {       "BDP3336",              0       },
  52        /*  Boca Research */
  53        /* Boca Complete Ofc Communicator 14.4 Data-FAX */
  54        {       "BRI0A49",              0       },
  55        /* Boca Research 33,600 ACF Modem */
  56        {       "BRI1400",              0       },
  57        /* Boca 33.6 Kbps Internal FD34FSVD */
  58        {       "BRI3400",              0       },
  59        /* Boca 33.6 Kbps Internal FD34FSVD */
  60        {       "BRI0A49",              0       },
  61        /* Best Data Products Inc. Smart One 336F PnP Modem */
  62        {       "BDP3336",              0       },
  63        /* Computer Peripherals Inc */
  64        /* EuroViVa CommCenter-33.6 SP PnP */
  65        {       "CPI4050",              0       },
  66        /* Creative Labs */
  67        /* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
  68        {       "CTL3001",              0       },
  69        /* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
  70        {       "CTL3011",              0       },
  71        /* Davicom ISA 33.6K Modem */
  72        {       "DAV0336",              0       },
  73        /* Creative */
  74        /* Creative Modem Blaster Flash56 DI5601-1 */
  75        {       "DMB1032",              0       },
  76        /* Creative Modem Blaster V.90 DI5660 */
  77        {       "DMB2001",              0       },
  78        /* E-Tech */
  79        /* E-Tech CyberBULLET PC56RVP */
  80        {       "ETT0002",              0       },
  81        /* FUJITSU */
  82        /* Fujitsu 33600 PnP-I2 R Plug & Play */
  83        {       "FUJ0202",              0       },
  84        /* Fujitsu FMV-FX431 Plug & Play */
  85        {       "FUJ0205",              0       },
  86        /* Fujitsu 33600 PnP-I4 R Plug & Play */
  87        {       "FUJ0206",              0       },
  88        /* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */
  89        {       "FUJ0209",              0       },
  90        /* Archtek America Corp. */
  91        /* Archtek SmartLink Modem 3334BT Plug & Play */
  92        {       "GVC000F",              0       },
  93        /* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */
  94        {       "GVC0303",              0       },
  95        /* Hayes */
  96        /* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */
  97        {       "HAY0001",              0       },
  98        /* Hayes Optima 336 V.34 + FAX + Voice PnP */
  99        {       "HAY000C",              0       },
 100        /* Hayes Optima 336B V.34 + FAX + Voice PnP */
 101        {       "HAY000D",              0       },
 102        /* Hayes Accura 56K Ext Fax Modem PnP */
 103        {       "HAY5670",              0       },
 104        /* Hayes Accura 56K Ext Fax Modem PnP */
 105        {       "HAY5674",              0       },
 106        /* Hayes Accura 56K Fax Modem PnP */
 107        {       "HAY5675",              0       },
 108        /* Hayes 288, V.34 + FAX */
 109        {       "HAYF000",              0       },
 110        /* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */
 111        {       "HAYF001",              0       },
 112        /* IBM */
 113        /* IBM Thinkpad 701 Internal Modem Voice */
 114        {       "IBM0033",              0       },
 115        /* Intermec */
 116        /* Intermec CV60 touchscreen port */
 117        {       "PNP4972",              0       },
 118        /* Intertex */
 119        /* Intertex 28k8 33k6 Voice EXT PnP */
 120        {       "IXDC801",              0       },
 121        /* Intertex 33k6 56k Voice EXT PnP */
 122        {       "IXDC901",              0       },
 123        /* Intertex 28k8 33k6 Voice SP EXT PnP */
 124        {       "IXDD801",              0       },
 125        /* Intertex 33k6 56k Voice SP EXT PnP */
 126        {       "IXDD901",              0       },
 127        /* Intertex 28k8 33k6 Voice SP INT PnP */
 128        {       "IXDF401",              0       },
 129        /* Intertex 28k8 33k6 Voice SP EXT PnP */
 130        {       "IXDF801",              0       },
 131        /* Intertex 33k6 56k Voice SP EXT PnP */
 132        {       "IXDF901",              0       },
 133        /* Kortex International */
 134        /* KORTEX 28800 Externe PnP */
 135        {       "KOR4522",              0       },
 136        /* KXPro 33.6 Vocal ASVD PnP */
 137        {       "KORF661",              0       },
 138        /* Lasat */
 139        /* LASAT Internet 33600 PnP */
 140        {       "LAS4040",              0       },
 141        /* Lasat Safire 560 PnP */
 142        {       "LAS4540",              0       },
 143        /* Lasat Safire 336  PnP */
 144        {       "LAS5440",              0       },
 145        /* Microcom, Inc. */
 146        /* Microcom TravelPorte FAST V.34 Plug & Play */
 147        {       "MNP0281",              0       },
 148        /* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */
 149        {       "MNP0336",              0       },
 150        /* Microcom DeskPorte FAST EP 28.8 Plug & Play */
 151        {       "MNP0339",              0       },
 152        /* Microcom DeskPorte 28.8P Plug & Play */
 153        {       "MNP0342",              0       },
 154        /* Microcom DeskPorte FAST ES 28.8 Plug & Play */
 155        {       "MNP0500",              0       },
 156        /* Microcom DeskPorte FAST ES 28.8 Plug & Play */
 157        {       "MNP0501",              0       },
 158        /* Microcom DeskPorte 28.8S Internal Plug & Play */
 159        {       "MNP0502",              0       },
 160        /* Motorola */
 161        /* Motorola BitSURFR Plug & Play */
 162        {       "MOT1105",              0       },
 163        /* Motorola TA210 Plug & Play */
 164        {       "MOT1111",              0       },
 165        /* Motorola HMTA 200 (ISDN) Plug & Play */
 166        {       "MOT1114",              0       },
 167        /* Motorola BitSURFR Plug & Play */
 168        {       "MOT1115",              0       },
 169        /* Motorola Lifestyle 28.8 Internal */
 170        {       "MOT1190",              0       },
 171        /* Motorola V.3400 Plug & Play */
 172        {       "MOT1501",              0       },
 173        /* Motorola Lifestyle 28.8 V.34 Plug & Play */
 174        {       "MOT1502",              0       },
 175        /* Motorola Power 28.8 V.34 Plug & Play */
 176        {       "MOT1505",              0       },
 177        /* Motorola ModemSURFR External 28.8 Plug & Play */
 178        {       "MOT1509",              0       },
 179        /* Motorola Premier 33.6 Desktop Plug & Play */
 180        {       "MOT150A",              0       },
 181        /* Motorola VoiceSURFR 56K External PnP */
 182        {       "MOT150F",              0       },
 183        /* Motorola ModemSURFR 56K External PnP */
 184        {       "MOT1510",              0       },
 185        /* Motorola ModemSURFR 56K Internal PnP */
 186        {       "MOT1550",              0       },
 187        /* Motorola ModemSURFR Internal 28.8 Plug & Play */
 188        {       "MOT1560",              0       },
 189        /* Motorola Premier 33.6 Internal Plug & Play */
 190        {       "MOT1580",              0       },
 191        /* Motorola OnlineSURFR 28.8 Internal Plug & Play */
 192        {       "MOT15B0",              0       },
 193        /* Motorola VoiceSURFR 56K Internal PnP */
 194        {       "MOT15F0",              0       },
 195        /* Com 1 */
 196        /*  Deskline K56 Phone System PnP */
 197        {       "MVX00A1",              0       },
 198        /* PC Rider K56 Phone System PnP */
 199        {       "MVX00F2",              0       },
 200        /* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */
 201        {       "nEC8241",              0       },
 202        /* Pace 56 Voice Internal Plug & Play Modem */
 203        {       "PMC2430",              0       },
 204        /* Generic */
 205        /* Generic standard PC COM port  */
 206        {       "PNP0500",              0       },
 207        /* Generic 16550A-compatible COM port */
 208        {       "PNP0501",              0       },
 209        /* Compaq 14400 Modem */
 210        {       "PNPC000",              0       },
 211        /* Compaq 2400/9600 Modem */
 212        {       "PNPC001",              0       },
 213        /* Dial-Up Networking Serial Cable between 2 PCs */
 214        {       "PNPC031",              0       },
 215        /* Dial-Up Networking Parallel Cable between 2 PCs */
 216        {       "PNPC032",              0       },
 217        /* Standard 9600 bps Modem */
 218        {       "PNPC100",              0       },
 219        /* Standard 14400 bps Modem */
 220        {       "PNPC101",              0       },
 221        /*  Standard 28800 bps Modem*/
 222        {       "PNPC102",              0       },
 223        /*  Standard Modem*/
 224        {       "PNPC103",              0       },
 225        /*  Standard 9600 bps Modem*/
 226        {       "PNPC104",              0       },
 227        /*  Standard 14400 bps Modem*/
 228        {       "PNPC105",              0       },
 229        /*  Standard 28800 bps Modem*/
 230        {       "PNPC106",              0       },
 231        /*  Standard Modem */
 232        {       "PNPC107",              0       },
 233        /* Standard 9600 bps Modem */
 234        {       "PNPC108",              0       },
 235        /* Standard 14400 bps Modem */
 236        {       "PNPC109",              0       },
 237        /* Standard 28800 bps Modem */
 238        {       "PNPC10A",              0       },
 239        /* Standard Modem */
 240        {       "PNPC10B",              0       },
 241        /* Standard 9600 bps Modem */
 242        {       "PNPC10C",              0       },
 243        /* Standard 14400 bps Modem */
 244        {       "PNPC10D",              0       },
 245        /* Standard 28800 bps Modem */
 246        {       "PNPC10E",              0       },
 247        /* Standard Modem */
 248        {       "PNPC10F",              0       },
 249        /* Standard PCMCIA Card Modem */
 250        {       "PNP2000",              0       },
 251        /* Rockwell */
 252        /* Modular Technology */
 253        /* Rockwell 33.6 DPF Internal PnP */
 254        /* Modular Technology 33.6 Internal PnP */
 255        {       "ROK0030",              0       },
 256        /* Kortex International */
 257        /* KORTEX 14400 Externe PnP */
 258        {       "ROK0100",              0       },
 259        /* Rockwell 28.8 */
 260        {       "ROK4120",              0       },
 261        /* Viking Components, Inc */
 262        /* Viking 28.8 INTERNAL Fax+Data+Voice PnP */
 263        {       "ROK4920",              0       },
 264        /* Rockwell */
 265        /* British Telecom */
 266        /* Modular Technology */
 267        /* Rockwell 33.6 DPF External PnP */
 268        /* BT Prologue 33.6 External PnP */
 269        /* Modular Technology 33.6 External PnP */
 270        {       "RSS00A0",              0       },
 271        /* Viking 56K FAX INT */
 272        {       "RSS0262",              0       },
 273        /* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */
 274        {       "RSS0250",              0       },
 275        /* SupraExpress 28.8 Data/Fax PnP modem */
 276        {       "SUP1310",              0       },
 277        /* SupraExpress 336i PnP Voice Modem */
 278        {       "SUP1381",              0       },
 279        /* SupraExpress 33.6 Data/Fax PnP modem */
 280        {       "SUP1421",              0       },
 281        /* SupraExpress 33.6 Data/Fax PnP modem */
 282        {       "SUP1590",              0       },
 283        /* SupraExpress 336i Sp ASVD */
 284        {       "SUP1620",              0       },
 285        /* SupraExpress 33.6 Data/Fax PnP modem */
 286        {       "SUP1760",              0       },
 287        /* SupraExpress 56i Sp Intl */
 288        {       "SUP2171",              0       },
 289        /* Phoebe Micro */
 290        /* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */
 291        {       "TEX0011",              0       },
 292        /* Archtek America Corp. */
 293        /* Archtek SmartLink Modem 3334BT Plug & Play */
 294        {       "UAC000F",              0       },
 295        /* 3Com Corp. */
 296        /* Gateway Telepath IIvi 33.6 */
 297        {       "USR0000",              0       },
 298        /* U.S. Robotics Sporster 33.6K Fax INT PnP */
 299        {       "USR0002",              0       },
 300        /*  Sportster Vi 14.4 PnP FAX Voicemail */
 301        {       "USR0004",              0       },
 302        /* U.S. Robotics 33.6K Voice INT PnP */
 303        {       "USR0006",              0       },
 304        /* U.S. Robotics 33.6K Voice EXT PnP */
 305        {       "USR0007",              0       },
 306        /* U.S. Robotics Courier V.Everything INT PnP */
 307        {       "USR0009",              0       },
 308        /* U.S. Robotics 33.6K Voice INT PnP */
 309        {       "USR2002",              0       },
 310        /* U.S. Robotics 56K Voice INT PnP */
 311        {       "USR2070",              0       },
 312        /* U.S. Robotics 56K Voice EXT PnP */
 313        {       "USR2080",              0       },
 314        /* U.S. Robotics 56K FAX INT */
 315        {       "USR3031",              0       },
 316        /* U.S. Robotics 56K FAX INT */
 317        {       "USR3050",              0       },
 318        /* U.S. Robotics 56K Voice INT PnP */
 319        {       "USR3070",              0       },
 320        /* U.S. Robotics 56K Voice EXT PnP */
 321        {       "USR3080",              0       },
 322        /* U.S. Robotics 56K Voice INT PnP */
 323        {       "USR3090",              0       },
 324        /* U.S. Robotics 56K Message  */
 325        {       "USR9100",              0       },
 326        /* U.S. Robotics 56K FAX EXT PnP*/
 327        {       "USR9160",              0       },
 328        /* U.S. Robotics 56K FAX INT PnP*/
 329        {       "USR9170",              0       },
 330        /* U.S. Robotics 56K Voice EXT PnP*/
 331        {       "USR9180",              0       },
 332        /* U.S. Robotics 56K Voice INT PnP*/
 333        {       "USR9190",              0       },
 334        /* Wacom tablets */
 335        {       "WACFXXX",              0       },
 336        /* Compaq touchscreen */
 337        {       "FPI2002",              0 },
 338        /* Fujitsu Stylistic touchscreens */
 339        {       "FUJ02B2",              0 },
 340        {       "FUJ02B3",              0 },
 341        /* Fujitsu Stylistic LT touchscreens */
 342        {       "FUJ02B4",              0 },
 343        /* Passive Fujitsu Stylistic touchscreens */
 344        {       "FUJ02B6",              0 },
 345        {       "FUJ02B7",              0 },
 346        {       "FUJ02B8",              0 },
 347        {       "FUJ02B9",              0 },
 348        {       "FUJ02BC",              0 },
 349        /* Fujitsu Wacom Tablet PC device */
 350        {       "FUJ02E5",              0       },
 351        /* Fujitsu P-series tablet PC device */
 352        {       "FUJ02E6",              0       },
 353        /* Fujitsu Wacom 2FGT Tablet PC device */
 354        {       "FUJ02E7",              0       },
 355        /* Fujitsu Wacom 1FGT Tablet PC device */
 356        {       "FUJ02E9",              0       },
 357        /*
 358         * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6
 359         * in disguise).
 360         */
 361        {       "LTS0001",              0       },
 362        /* Rockwell's (PORALiNK) 33600 INT PNP */
 363        {       "WCI0003",              0       },
 364        /* Unknown PnP modems */
 365        {       "PNPCXXX",              UNKNOWN_DEV     },
 366        /* More unknown PnP modems */
 367        {       "PNPDXXX",              UNKNOWN_DEV     },
 368        /*
 369         * Winbond CIR port, should not be probed. We should keep track of
 370         * it to prevent the legacy serial driver from probing it.
 371         */
 372        {       "WEC1022",              CIR_PORT        },
 373        /*
 374         * SMSC IrCC SIR/FIR port, should not be probed by serial driver as
 375         * well so its own driver can bind to it.
 376         */
 377        {       "SMCF010",              CIR_PORT        },
 378        {       "",                     0       }
 379};
 380
 381MODULE_DEVICE_TABLE(pnp, pnp_dev_table);
 382
 383static const char *modem_names[] = {
 384        "MODEM", "Modem", "modem", "FAX", "Fax", "fax",
 385        "56K", "56k", "K56", "33.6", "28.8", "14.4",
 386        "33,600", "28,800", "14,400", "33.600", "28.800", "14.400",
 387        "33600", "28800", "14400", "V.90", "V.34", "V.32", NULL
 388};
 389
 390static bool check_name(const char *name)
 391{
 392        const char **tmp;
 393
 394        for (tmp = modem_names; *tmp; tmp++)
 395                if (strstr(name, *tmp))
 396                        return true;
 397
 398        return false;
 399}
 400
 401static bool check_resources(struct pnp_dev *dev)
 402{
 403        static const resource_size_t base[] = {0x2f8, 0x3f8, 0x2e8, 0x3e8};
 404        unsigned int i;
 405
 406        for (i = 0; i < ARRAY_SIZE(base); i++) {
 407                if (pnp_possible_config(dev, IORESOURCE_IO, base[i], 8))
 408                        return true;
 409        }
 410
 411        return false;
 412}
 413
 414/*
 415 * Given a complete unknown PnP device, try to use some heuristics to
 416 * detect modems. Currently use such heuristic set:
 417 *     - dev->name or dev->bus->name must contain "modem" substring;
 418 *     - device must have only one IO region (8 byte long) with base address
 419 *       0x2e8, 0x3e8, 0x2f8 or 0x3f8.
 420 *
 421 * Such detection looks very ugly, but can detect at least some of numerous
 422 * PnP modems, alternatively we must hardcode all modems in pnp_devices[]
 423 * table.
 424 */
 425static int serial_pnp_guess_board(struct pnp_dev *dev)
 426{
 427        if (!(check_name(pnp_dev_name(dev)) ||
 428            (dev->card && check_name(dev->card->name))))
 429                return -ENODEV;
 430
 431        if (check_resources(dev))
 432                return 0;
 433
 434        return -ENODEV;
 435}
 436
 437static int
 438serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
 439{
 440        struct uart_8250_port uart, *port;
 441        int ret, line, flags = dev_id->driver_data;
 442
 443        if (flags & UNKNOWN_DEV) {
 444                ret = serial_pnp_guess_board(dev);
 445                if (ret < 0)
 446                        return ret;
 447        }
 448
 449        memset(&uart, 0, sizeof(uart));
 450        if (pnp_irq_valid(dev, 0))
 451                uart.port.irq = pnp_irq(dev, 0);
 452        if ((flags & CIR_PORT) && pnp_port_valid(dev, 2)) {
 453                uart.port.iobase = pnp_port_start(dev, 2);
 454                uart.port.iotype = UPIO_PORT;
 455        } else if (pnp_port_valid(dev, 0)) {
 456                uart.port.iobase = pnp_port_start(dev, 0);
 457                uart.port.iotype = UPIO_PORT;
 458        } else if (pnp_mem_valid(dev, 0)) {
 459                uart.port.mapbase = pnp_mem_start(dev, 0);
 460                uart.port.iotype = UPIO_MEM;
 461                uart.port.flags = UPF_IOREMAP;
 462        } else
 463                return -ENODEV;
 464
 465        dev_dbg(&dev->dev,
 466                 "Setup PNP port: port %#lx, mem %#llx, irq %u, type %u\n",
 467                 uart.port.iobase, (unsigned long long)uart.port.mapbase,
 468                 uart.port.irq, uart.port.iotype);
 469
 470        if (flags & CIR_PORT) {
 471                uart.port.flags |= UPF_FIXED_PORT | UPF_FIXED_TYPE;
 472                uart.port.type = PORT_8250_CIR;
 473        }
 474
 475        uart.port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
 476        if (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE)
 477                uart.port.flags |= UPF_SHARE_IRQ;
 478        uart.port.uartclk = 1843200;
 479        device_property_read_u32(&dev->dev, "clock-frequency", &uart.port.uartclk);
 480        uart.port.dev = &dev->dev;
 481
 482        line = serial8250_register_8250_port(&uart);
 483        if (line < 0 || (flags & CIR_PORT))
 484                return -ENODEV;
 485
 486        port = serial8250_get_port(line);
 487        if (uart_console(&port->port))
 488                dev->capabilities |= PNP_CONSOLE;
 489
 490        pnp_set_drvdata(dev, (void *)((long)line + 1));
 491        return 0;
 492}
 493
 494static void serial_pnp_remove(struct pnp_dev *dev)
 495{
 496        long line = (long)pnp_get_drvdata(dev);
 497
 498        dev->capabilities &= ~PNP_CONSOLE;
 499        if (line)
 500                serial8250_unregister_port(line - 1);
 501}
 502
 503static int __maybe_unused serial_pnp_suspend(struct device *dev)
 504{
 505        long line = (long)dev_get_drvdata(dev);
 506
 507        if (!line)
 508                return -ENODEV;
 509        serial8250_suspend_port(line - 1);
 510        return 0;
 511}
 512
 513static int __maybe_unused serial_pnp_resume(struct device *dev)
 514{
 515        long line = (long)dev_get_drvdata(dev);
 516
 517        if (!line)
 518                return -ENODEV;
 519        serial8250_resume_port(line - 1);
 520        return 0;
 521}
 522
 523static SIMPLE_DEV_PM_OPS(serial_pnp_pm_ops, serial_pnp_suspend, serial_pnp_resume);
 524
 525static struct pnp_driver serial_pnp_driver = {
 526        .name           = "serial",
 527        .probe          = serial_pnp_probe,
 528        .remove         = serial_pnp_remove,
 529        .driver         = {
 530                .pm     = &serial_pnp_pm_ops,
 531        },
 532        .id_table       = pnp_dev_table,
 533};
 534
 535int serial8250_pnp_init(void)
 536{
 537        return pnp_register_driver(&serial_pnp_driver);
 538}
 539
 540void serial8250_pnp_exit(void)
 541{
 542        pnp_unregister_driver(&serial_pnp_driver);
 543}
 544
 545
Hosted by Missing Link Electronics. The original LXR software by the LXR community, this experimental version by lxr@linux.no.