Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux

V4L/DVB (5257): USB: add zr364xx V4L2 driver

This patch adds a V4L2 driver giving support for USB webcams based on the
zr364xx chipsets.

Signed-off-by: Antoine Jacquet <royale@zerezo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

authored by

Antoine Jacquet and committed by
Mauro Carvalho Chehab
b7eee616 a205752d

+1027 -12
+65
Documentation/video4linux/zr364xx.txt
··· 1 + Zoran 364xx based USB webcam module version 0.72 2 + site: http://royale.zerezo.com/zr364xx/ 3 + mail: royale@zerezo.com 4 + 5 + introduction: 6 + This brings support under Linux for the Aiptek PocketDV 3300 in webcam mode. 7 + If you just want to get on your PC the pictures and movies on the camera, you should use the usb-storage module instead. 8 + The driver works with several other cameras in webcam mode (see the list below). 9 + Maybe this code can work for other JPEG/USB cams based on the Coach chips from Zoran? 10 + Possible chipsets are : ZR36430 (ZR36430BGC) and maybe ZR36431, ZR36440, ZR36442... 11 + You can try the experience changing the vendor/product ID values (look at the source code). 12 + You can get these values by looking at /var/log/messages when you plug your camera, or by typing : cat /proc/bus/usb/devices. 13 + If you manage to use your cam with this code, you can send me a mail (royale@zerezo.com) with the name of your cam and a patch if needed. 14 + This is a beta release of the driver. 15 + Since version 0.70, this driver is only compatible with V4L2 API and 2.6.x kernels. 16 + If you need V4L1 or 2.4x kernels support, please use an older version, but the code is not maintained anymore. 17 + Good luck! 18 + 19 + install: 20 + In order to use this driver, you must compile it with your kernel. 21 + Location: Device Drivers -> Multimedia devices -> Video For Linux -> Video Capture Adapters -> V4L USB devices 22 + 23 + usage: 24 + modprobe zr364xx debug=X mode=Y 25 + - debug : set to 1 to enable verbose debug messages 26 + - mode : 0 = 320x240, 1 = 160x120, 2 = 640x480 27 + You can then use the camera with V4L2 compatible applications, for example Ekiga. 28 + To capture a single image, try this: dd if=/dev/video0 of=test.jpg bs=1 count=1 29 + 30 + links : 31 + http://mxhaard.free.fr/ (support for many others cams including some Aiptek PocketDV) 32 + http://www.harmwal.nl/pccam880/ (this project also supports cameras based on this chipset) 33 + 34 + supported devices: 35 + ------ ------- ----------- ----- 36 + Vendor Product Distributor Model 37 + ------ ------- ----------- ----- 38 + 0x08ca 0x0109 Aiptek PocketDV 3300 39 + 0x08ca 0x0109 Maxell Maxcam PRO DV3 40 + 0x041e 0x4024 Creative PC-CAM 880 41 + 0x0d64 0x0108 Aiptek Fidelity 3200 42 + 0x0d64 0x0108 Praktica DCZ 1.3 S 43 + 0x0d64 0x0108 Genius Digital Camera (?) 44 + 0x0d64 0x0108 DXG Technology Fashion Cam 45 + 0x0546 0x3187 Polaroid iON 230 46 + 0x0d64 0x3108 Praktica Exakta DC 2200 47 + 0x0d64 0x3108 Genius G-Shot D211 48 + 0x0595 0x4343 Concord Eye-Q Duo 1300 49 + 0x0595 0x4343 Concord Eye-Q Duo 2000 50 + 0x0595 0x4343 Fujifilm EX-10 51 + 0x0595 0x4343 Ricoh RDC-6000 52 + 0x0595 0x4343 Digitrex DSC 1300 53 + 0x0595 0x4343 Firstline FDC 2000 54 + 0x0bb0 0x500d Concord EyeQ Go Wireless 55 + 0x0feb 0x2004 CRS Electronic 3.3 Digital Camera 56 + 0x0feb 0x2004 Packard Bell DSC-300 57 + 0x055f 0xb500 Mustek MDC 3000 58 + 0x08ca 0x2062 Aiptek PocketDV 5700 59 + 0x052b 0x1a18 Chiphead Megapix V12 60 + 0x04c8 0x0729 Konica Revio 2 61 + 0x04f2 0xa208 Creative PC-CAM 850 62 + 0x0784 0x0040 Traveler Slimline X5 63 + 0x06d6 0x0034 Trust Powerc@m 750 64 + 0x0a17 0x0062 Pentax Optio 50L 65 +
+20 -12
MAINTAINERS
··· 55 55 56 56 8. Happy hacking. 57 57 58 - ----------------------------------- 58 + ----------------------------------- 59 59 60 60 Maintainers List (try to look for most precise areas first) 61 61 ··· 907 907 L: samba-technical@lists.samba.org 908 908 W: http://us1.samba.org/samba/Linux_CIFS_client.html 909 909 T: git kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6.git 910 - S: Supported 910 + S: Supported 911 911 912 912 CONFIGFS 913 913 P: Joel Becker ··· 1549 1549 M: chirag.kantharia@hp.com 1550 1550 L: iss_storagedev@hp.com 1551 1551 S: Maintained 1552 - 1552 + 1553 1553 HEWLETT-PACKARD SMART2 RAID DRIVER 1554 1554 P: Chirag Kantharia 1555 1555 M: chirag.kantharia@hp.com 1556 1556 L: iss_storagedev@hp.com 1557 1557 S: Maintained 1558 - 1558 + 1559 1559 HEWLETT-PACKARD SMART CISS RAID DRIVER (cciss) 1560 1560 P: Mike Miller 1561 1561 M: mike.miller@hp.com 1562 1562 L: iss_storagedev@hp.com 1563 1563 S: Supported 1564 - 1564 + 1565 1565 HOST AP DRIVER 1566 1566 P: Jouni Malinen 1567 1567 M: jkmaline@cc.hut.fi ··· 1673 1673 P: Dave Jeffery 1674 1674 M: ipslinux@adaptec.com 1675 1675 W: http://www.developer.ibm.com/welcome/netfinity/serveraid.html 1676 - S: Supported 1676 + S: Supported 1677 1677 1678 1678 IDE SUBSYSTEM 1679 1679 P: Bartlomiej Zolnierkiewicz ··· 1975 1975 P: Sam Ravnborg 1976 1976 M: sam@ravnborg.org 1977 1977 T: git kernel.org:/pub/scm/linux/kernel/git/sam/kbuild.git 1978 - S: Maintained 1978 + S: Maintained 1979 1979 1980 1980 KERNEL JANITORS 1981 1981 P: Several ··· 2155 2155 LOGICAL DISK MANAGER SUPPORT (LDM, Windows 2000/XP Dynamic Disks) 2156 2156 P: Richard Russon (FlatCap) 2157 2157 M: ldm@flatcap.org 2158 - L: ldm-devel@lists.sourceforge.net 2158 + L: ldm-devel@lists.sourceforge.net 2159 2159 W: http://ldm.sourceforge.net 2160 2160 S: Maintained 2161 2161 ··· 2504 2504 M: kurt.hackel@oracle.com 2505 2505 L: ocfs2-devel@oss.oracle.com 2506 2506 W: http://oss.oracle.com/projects/ocfs2/ 2507 - S: Supported 2507 + S: Supported 2508 2508 2509 2509 OLYMPIC NETWORK DRIVER 2510 2510 P: Peter De Shrijver 2511 2511 M: p2@ace.ulyssis.student.kuleuven.ac.be 2512 2512 P: Mike Phillips 2513 - M: mikep@linuxtr.net 2513 + M: mikep@linuxtr.net 2514 2514 L: netdev@vger.kernel.org 2515 2515 L: linux-tr@linuxtr.net 2516 2516 W: http://www.linuxtr.net ··· 3045 3045 P: Thomas Winischhofer 3046 3046 M: thomas@winischhofer.net 3047 3047 W: http://www.winischhofer.net/linuxsisvga.shtml 3048 - S: Maintained 3048 + S: Maintained 3049 3049 3050 3050 SIS USB2VGA DRIVER 3051 3051 P: Thomas Winischhofer ··· 3649 3649 W: http://linux-lc100020.sourceforge.net 3650 3650 S: Maintained 3651 3651 3652 + USB ZR364XX DRIVER 3653 + P: Antoine Jacquet 3654 + M: royale@zerezo.com 3655 + L: linux-usb-devel@lists.sourceforge.net 3656 + L: video4linux-list@redhat.com 3657 + W: http://royale.zerezo.com/zr364xx/ 3658 + S: Maintained 3659 + 3652 3660 USER-MODE LINUX 3653 3661 P: Jeff Dike 3654 3662 M: jdike@karaya.com ··· 3664 3656 L: user-mode-linux-user@lists.sourceforge.net 3665 3657 W: http://user-mode-linux.sourceforge.net 3666 3658 S: Maintained 3667 - 3659 + 3668 3660 FAT/VFAT/MSDOS FILESYSTEM: 3669 3661 P: OGAWA Hirofumi 3670 3662 M: hirofumi@mail.parknet.co.jp
+12
drivers/media/video/Kconfig
··· 761 761 762 762 source "drivers/media/video/pwc/Kconfig" 763 763 764 + config USB_ZR364XX 765 + tristate "USB ZR364XX Camera support" 766 + depends on USB && VIDEO_V4L2 767 + ---help--- 768 + Say Y here if you want to connect this type of camera to your 769 + computer's USB port. 770 + See <file:Documentation/video4linux/zr364xx.txt> for more info 771 + and list of supported cameras. 772 + 773 + To compile this driver as a module, choose M here: the 774 + module will be called zr364xx. 775 + 764 776 endmenu # V4L USB devices 765 777 766 778 endmenu
+1
drivers/media/video/Makefile
··· 99 99 obj-$(CONFIG_USB_SE401) += se401.o 100 100 obj-$(CONFIG_USB_STV680) += stv680.o 101 101 obj-$(CONFIG_USB_W9968CF) += w9968cf.o 102 + obj-$(CONFIG_USB_ZR364XX) += zr364xx.o 102 103 103 104 obj-$(CONFIG_USB_SN9C102) += sn9c102/ 104 105 obj-$(CONFIG_USB_ET61X251) += et61x251/
+929
drivers/media/video/zr364xx.c
··· 1 + /* 2 + * Zoran 364xx based USB webcam module version 0.72 3 + * 4 + * Allows you to use your USB webcam with V4L2 applications 5 + * This is still in heavy developpement ! 6 + * 7 + * Copyright (C) 2004 Antoine Jacquet <royale@zerezo.com> 8 + * http://royale.zerezo.com/zr364xx/ 9 + * 10 + * Heavily inspired by usb-skeleton.c, vicam.c, cpia.c and spca50x.c drivers 11 + * V4L2 version inspired by meye.c driver 12 + * 13 + * This program is free software; you can redistribute it and/or modify 14 + * it under the terms of the GNU General Public License as published by 15 + * the Free Software Foundation; either version 2 of the License, or 16 + * (at your option) any later version. 17 + * 18 + * This program is distributed in the hope that it will be useful, 19 + * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 + * GNU General Public License for more details. 22 + * 23 + * You should have received a copy of the GNU General Public License 24 + * along with this program; if not, write to the Free Software 25 + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 26 + */ 27 + 28 + 29 + #include <linux/version.h> 30 + #include <linux/module.h> 31 + #include <linux/init.h> 32 + #include <linux/usb.h> 33 + #include <linux/vmalloc.h> 34 + #include <linux/slab.h> 35 + #include <linux/proc_fs.h> 36 + #include <media/v4l2-common.h> 37 + 38 + 39 + /* Version Information */ 40 + #define DRIVER_VERSION "v0.72" 41 + #define DRIVER_AUTHOR "Antoine Jacquet, http://royale.zerezo.com/" 42 + #define DRIVER_DESC "Zoran 364xx" 43 + 44 + 45 + /* Camera */ 46 + #define FRAMES 2 47 + #define MAX_FRAME_SIZE 100000 48 + #define BUFFER_SIZE 0x1000 49 + #define CTRL_TIMEOUT 500 50 + 51 + 52 + /* Debug macro */ 53 + #define DBG(x...) if (debug) info(x) 54 + 55 + 56 + /* Init methods, need to find nicer names for these 57 + * the exact names of the chipsets would be the best if someone finds it */ 58 + #define METHOD0 0 59 + #define METHOD1 1 60 + #define METHOD2 2 61 + 62 + 63 + /* Module parameters */ 64 + static int debug = 0; 65 + static int mode = 0; 66 + 67 + 68 + /* Module parameters interface */ 69 + module_param(debug, int, 0644); 70 + MODULE_PARM_DESC(debug, "Debug level"); 71 + module_param(mode, int, 0644); 72 + MODULE_PARM_DESC(mode, "0 = 320x240, 1 = 160x120, 2 = 640x480"); 73 + 74 + 75 + /* Devices supported by this driver 76 + * .driver_info contains the init method used by the camera */ 77 + static struct usb_device_id device_table[] = { 78 + {USB_DEVICE(0x08ca, 0x0109), .driver_info = METHOD0 }, 79 + {USB_DEVICE(0x041e, 0x4024), .driver_info = METHOD0 }, 80 + {USB_DEVICE(0x0d64, 0x0108), .driver_info = METHOD0 }, 81 + {USB_DEVICE(0x0546, 0x3187), .driver_info = METHOD0 }, 82 + {USB_DEVICE(0x0d64, 0x3108), .driver_info = METHOD0 }, 83 + {USB_DEVICE(0x0595, 0x4343), .driver_info = METHOD0 }, 84 + {USB_DEVICE(0x0bb0, 0x500d), .driver_info = METHOD0 }, 85 + {USB_DEVICE(0x0feb, 0x2004), .driver_info = METHOD0 }, 86 + {USB_DEVICE(0x055f, 0xb500), .driver_info = METHOD0 }, 87 + {USB_DEVICE(0x08ca, 0x2062), .driver_info = METHOD2 }, 88 + {USB_DEVICE(0x052b, 0x1a18), .driver_info = METHOD1 }, 89 + {USB_DEVICE(0x04c8, 0x0729), .driver_info = METHOD0 }, 90 + {USB_DEVICE(0x04f2, 0xa208), .driver_info = METHOD0 }, 91 + {USB_DEVICE(0x0784, 0x0040), .driver_info = METHOD1 }, 92 + {USB_DEVICE(0x06d6, 0x0034), .driver_info = METHOD0 }, 93 + {USB_DEVICE(0x0a17, 0x0062), .driver_info = METHOD2 }, 94 + {} /* Terminating entry */ 95 + }; 96 + 97 + MODULE_DEVICE_TABLE(usb, device_table); 98 + 99 + 100 + /* Camera stuff */ 101 + struct zr364xx_camera { 102 + struct usb_device *udev; /* save off the usb device pointer */ 103 + struct usb_interface *interface;/* the interface for this device */ 104 + struct video_device *vdev; /* v4l video device */ 105 + u8 *framebuf; 106 + int nb; 107 + unsigned char *buffer; 108 + int skip; 109 + int brightness; 110 + int width; 111 + int height; 112 + int method; 113 + struct mutex lock; 114 + }; 115 + 116 + 117 + /* function used to send initialisation commands to the camera */ 118 + static int send_control_msg(struct usb_device *udev, u8 request, u16 value, 119 + u16 index, unsigned char *cp, u16 size) 120 + { 121 + int status; 122 + 123 + unsigned char *transfer_buffer = kmalloc(size, GFP_KERNEL); 124 + if (!transfer_buffer) { 125 + info("kmalloc(%d) failed", size); 126 + return -ENOMEM; 127 + } 128 + 129 + memcpy(transfer_buffer, cp, size); 130 + 131 + status = usb_control_msg(udev, 132 + usb_sndctrlpipe(udev, 0), 133 + request, 134 + USB_DIR_OUT | USB_TYPE_VENDOR | 135 + USB_RECIP_DEVICE, value, index, 136 + transfer_buffer, size, CTRL_TIMEOUT); 137 + 138 + kfree(transfer_buffer); 139 + 140 + if (status < 0) 141 + info("Failed sending control message, error %d.", status); 142 + 143 + return status; 144 + } 145 + 146 + 147 + /* Control messages sent to the camera to initialize it 148 + * and launch the capture */ 149 + typedef struct { 150 + unsigned int value; 151 + unsigned int size; 152 + unsigned char *bytes; 153 + } message; 154 + 155 + /* method 0 */ 156 + static unsigned char m0d1[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; 157 + static unsigned char m0d2[] = { 0, 0, 0, 0, 0, 0 }; 158 + static unsigned char m0d3[] = { 0, 0 }; 159 + static message m0[] = { 160 + {0x1f30, 0, NULL}, 161 + {0xd000, 0, NULL}, 162 + {0x3370, sizeof(m0d1), m0d1}, 163 + {0x2000, 0, NULL}, 164 + {0x2f0f, 0, NULL}, 165 + {0x2610, sizeof(m0d2), m0d2}, 166 + {0xe107, 0, NULL}, 167 + {0x2502, 0, NULL}, 168 + {0x1f70, 0, NULL}, 169 + {0xd000, 0, NULL}, 170 + {0x9a01, sizeof(m0d3), m0d3}, 171 + {-1, -1, NULL} 172 + }; 173 + 174 + /* method 1 */ 175 + static unsigned char m1d1[] = { 0xff, 0xff }; 176 + static unsigned char m1d2[] = { 0x00, 0x00 }; 177 + static message m1[] = { 178 + {0x1f30, 0, NULL}, 179 + {0xd000, 0, NULL}, 180 + {0xf000, 0, NULL}, 181 + {0x2000, 0, NULL}, 182 + {0x2f0f, 0, NULL}, 183 + {0x2650, 0, NULL}, 184 + {0xe107, 0, NULL}, 185 + {0x2502, sizeof(m1d1), m1d1}, 186 + {0x1f70, 0, NULL}, 187 + {0xd000, 0, NULL}, 188 + {0xd000, 0, NULL}, 189 + {0xd000, 0, NULL}, 190 + {0x9a01, sizeof(m1d2), m1d2}, 191 + {-1, -1, NULL} 192 + }; 193 + 194 + /* method 2 */ 195 + static unsigned char m2d1[] = { 0xff, 0xff }; 196 + static message m2[] = { 197 + {0x1f30, 0, NULL}, 198 + {0xf000, 0, NULL}, 199 + {0x2000, 0, NULL}, 200 + {0x2f0f, 0, NULL}, 201 + {0x2650, 0, NULL}, 202 + {0xe107, 0, NULL}, 203 + {0x2502, sizeof(m2d1), m2d1}, 204 + {0x1f70, 0, NULL}, 205 + {-1, -1, NULL} 206 + }; 207 + 208 + /* init table */ 209 + static message *init[3] = { m0, m1, m2 }; 210 + 211 + 212 + /* JPEG static data in header (Huffman table, etc) */ 213 + static unsigned char header1[] = { 214 + 0xFF, 0xD8, 215 + /* 216 + 0xFF, 0xE0, 0x00, 0x10, 'J', 'F', 'I', 'F', 217 + 0x00, 0x01, 0x01, 0x00, 0x33, 0x8A, 0x00, 0x00, 0x33, 0x88, 218 + */ 219 + 0xFF, 0xDB, 0x00, 0x84 220 + }; 221 + static unsigned char header2[] = { 222 + 0xFF, 0xC4, 0x00, 0x1F, 0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 223 + 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 224 + 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 225 + 0xFF, 0xC4, 0x00, 0xB5, 0x10, 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, 226 + 0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, 0x01, 227 + 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 228 + 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1, 229 + 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24, 0x33, 230 + 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25, 231 + 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 232 + 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 233 + 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 234 + 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 235 + 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 236 + 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 237 + 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 238 + 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 239 + 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2, 240 + 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3, 241 + 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFF, 0xC4, 0x00, 0x1F, 242 + 0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 243 + 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 244 + 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0xFF, 0xC4, 0x00, 0xB5, 245 + 0x11, 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05, 246 + 0x04, 0x04, 0x00, 0x01, 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11, 247 + 0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, 248 + 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xA1, 0xB1, 0xC1, 249 + 0x09, 0x23, 0x33, 0x52, 0xF0, 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16, 250 + 0x24, 0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, 251 + 0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 252 + 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 253 + 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 254 + 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84, 255 + 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 256 + 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 257 + 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 258 + 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 259 + 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, 260 + 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 261 + 0xF8, 0xF9, 0xFA, 0xFF, 0xC0, 0x00, 0x11, 0x08, 0x00, 0xF0, 0x01, 262 + 0x40, 0x03, 0x01, 0x21, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01, 263 + 0xFF, 0xDA, 0x00, 0x0C, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11, 264 + 0x00, 0x3F, 0x00 265 + }; 266 + static unsigned char header3; 267 + 268 + 269 + 270 + /********************/ 271 + /* V4L2 integration */ 272 + /********************/ 273 + 274 + /* this function reads a full JPEG picture synchronously 275 + * TODO: do it asynchronously... */ 276 + static int read_frame(struct zr364xx_camera *cam, int framenum) 277 + { 278 + int i, n, temp, head, size, actual_length; 279 + unsigned char *ptr = NULL, *jpeg, swap; 280 + 281 + redo: 282 + /* hardware brightness */ 283 + n = send_control_msg(cam->udev, 1, 0x2001, 0, NULL, 0); 284 + temp = (0x60 << 8) + 127 - cam->brightness; 285 + n = send_control_msg(cam->udev, 1, temp, 0, NULL, 0); 286 + 287 + /* during the first loop we are going to insert JPEG header */ 288 + head = 0; 289 + /* this is the place in memory where we are going to build 290 + * the JPEG image */ 291 + jpeg = cam->framebuf + framenum * MAX_FRAME_SIZE; 292 + /* read data... */ 293 + do { 294 + n = usb_bulk_msg(cam->udev, 295 + usb_rcvbulkpipe(cam->udev, 0x81), 296 + cam->buffer, BUFFER_SIZE, &actual_length, 297 + CTRL_TIMEOUT); 298 + DBG("buffer : %d %d", cam->buffer[0], cam->buffer[1]); 299 + DBG("bulk : n=%d size=%d", n, actual_length); 300 + if (n < 0) { 301 + info("error reading bulk msg"); 302 + return 0; 303 + } 304 + if (actual_length < 0 || actual_length > BUFFER_SIZE) { 305 + info("wrong number of bytes"); 306 + return 0; 307 + } 308 + 309 + /* swap bytes if camera needs it */ 310 + if (cam->method == METHOD0) 311 + for (i = 0; i < BUFFER_SIZE; i += 2) { 312 + swap = cam->buffer[i]; 313 + cam->buffer[i] = cam->buffer[i + 1]; 314 + cam->buffer[i + 1] = swap; 315 + } 316 + 317 + /* write the JPEG header */ 318 + if (!head) { 319 + DBG("jpeg header"); 320 + ptr = jpeg; 321 + memcpy(ptr, header1, sizeof(header1)); 322 + ptr += sizeof(header1); 323 + header3 = 0; 324 + memcpy(ptr, &header3, 1); 325 + ptr++; 326 + memcpy(ptr, cam->buffer, 64); 327 + ptr += 64; 328 + header3 = 1; 329 + memcpy(ptr, &header3, 1); 330 + ptr++; 331 + memcpy(ptr, cam->buffer + 64, 64); 332 + ptr += 64; 333 + memcpy(ptr, header2, sizeof(header2)); 334 + ptr += sizeof(header2); 335 + memcpy(ptr, cam->buffer + 128, 336 + actual_length - 128); 337 + ptr += actual_length - 128; 338 + head = 1; 339 + DBG("header : %d %d %d %d %d %d %d %d %d", 340 + cam->buffer[0], cam->buffer[1], cam->buffer[2], 341 + cam->buffer[3], cam->buffer[4], cam->buffer[5], 342 + cam->buffer[6], cam->buffer[7], cam->buffer[8]); 343 + } else { 344 + memcpy(ptr, cam->buffer, actual_length); 345 + ptr += actual_length; 346 + } 347 + } 348 + /* ... until there is no more */ 349 + while (actual_length == BUFFER_SIZE); 350 + 351 + /* we skip the 2 first frames which are usually buggy */ 352 + if (cam->skip) { 353 + cam->skip--; 354 + goto redo; 355 + } 356 + 357 + /* go back to find the JPEG EOI marker */ 358 + size = ptr - jpeg; 359 + ptr -= 2; 360 + while (ptr > jpeg) { 361 + if (*ptr == 0xFF && *(ptr + 1) == 0xD9 362 + && *(ptr + 2) == 0xFF) 363 + break; 364 + ptr--; 365 + } 366 + if (ptr == jpeg) 367 + DBG("No EOI marker"); 368 + 369 + /* Sometimes there is junk data in the middle of the picture, 370 + * we want to skip this bogus frames */ 371 + while (ptr > jpeg) { 372 + if (*ptr == 0xFF && *(ptr + 1) == 0xFF 373 + && *(ptr + 2) == 0xFF) 374 + break; 375 + ptr--; 376 + } 377 + if (ptr != jpeg) { 378 + DBG("Bogus frame ? %d", cam->nb); 379 + goto redo; 380 + } 381 + 382 + DBG("jpeg : %d %d %d %d %d %d %d %d", 383 + jpeg[0], jpeg[1], jpeg[2], jpeg[3], 384 + jpeg[4], jpeg[5], jpeg[6], jpeg[7]); 385 + 386 + return size; 387 + } 388 + 389 + 390 + static ssize_t zr364xx_read(struct file *file, char *buf, size_t cnt, 391 + loff_t * ppos) 392 + { 393 + unsigned long count = cnt; 394 + struct video_device *vdev = video_devdata(file); 395 + struct zr364xx_camera *cam; 396 + 397 + DBG("zr364xx_read: read %d bytes.", (int) count); 398 + 399 + if (vdev == NULL) 400 + return -ENODEV; 401 + cam = video_get_drvdata(vdev); 402 + 403 + if (!buf) 404 + return -EINVAL; 405 + 406 + if (!count) 407 + return -EINVAL; 408 + 409 + /* NoMan Sux ! */ 410 + count = read_frame(cam, 0); 411 + 412 + if (copy_to_user(buf, cam->framebuf, count)) 413 + return -EFAULT; 414 + 415 + return count; 416 + } 417 + 418 + 419 + static int zr364xx_vidioc_querycap(struct file *file, void *priv, 420 + struct v4l2_capability *cap) 421 + { 422 + memset(cap, 0, sizeof(*cap)); 423 + strcpy(cap->driver, DRIVER_DESC); 424 + cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE; 425 + return 0; 426 + } 427 + 428 + static int zr364xx_vidioc_enum_input(struct file *file, void *priv, 429 + struct v4l2_input *i) 430 + { 431 + if (i->index != 0) 432 + return -EINVAL; 433 + memset(i, 0, sizeof(*i)); 434 + i->index = 0; 435 + strcpy(i->name, DRIVER_DESC " Camera"); 436 + i->type = V4L2_INPUT_TYPE_CAMERA; 437 + return 0; 438 + } 439 + 440 + static int zr364xx_vidioc_g_input(struct file *file, void *priv, 441 + unsigned int *i) 442 + { 443 + *i = 0; 444 + return 0; 445 + } 446 + 447 + static int zr364xx_vidioc_s_input(struct file *file, void *priv, 448 + unsigned int i) 449 + { 450 + if (i != 0) 451 + return -EINVAL; 452 + return 0; 453 + } 454 + 455 + static int zr364xx_vidioc_queryctrl(struct file *file, void *priv, 456 + struct v4l2_queryctrl *c) 457 + { 458 + struct video_device *vdev = video_devdata(file); 459 + struct zr364xx_camera *cam; 460 + 461 + if (vdev == NULL) 462 + return -ENODEV; 463 + cam = video_get_drvdata(vdev); 464 + 465 + switch (c->id) { 466 + case V4L2_CID_BRIGHTNESS: 467 + c->type = V4L2_CTRL_TYPE_INTEGER; 468 + strcpy(c->name, "Brightness"); 469 + c->minimum = 0; 470 + c->maximum = 127; 471 + c->step = 1; 472 + c->default_value = cam->brightness; 473 + c->flags = 0; 474 + break; 475 + default: 476 + return -EINVAL; 477 + } 478 + return 0; 479 + } 480 + 481 + static int zr364xx_vidioc_s_ctrl(struct file *file, void *priv, 482 + struct v4l2_control *c) 483 + { 484 + struct video_device *vdev = video_devdata(file); 485 + struct zr364xx_camera *cam; 486 + 487 + if (vdev == NULL) 488 + return -ENODEV; 489 + cam = video_get_drvdata(vdev); 490 + 491 + switch (c->id) { 492 + case V4L2_CID_BRIGHTNESS: 493 + cam->brightness = c->value; 494 + break; 495 + default: 496 + return -EINVAL; 497 + } 498 + return 0; 499 + } 500 + 501 + static int zr364xx_vidioc_g_ctrl(struct file *file, void *priv, 502 + struct v4l2_control *c) 503 + { 504 + struct video_device *vdev = video_devdata(file); 505 + struct zr364xx_camera *cam; 506 + 507 + if (vdev == NULL) 508 + return -ENODEV; 509 + cam = video_get_drvdata(vdev); 510 + 511 + switch (c->id) { 512 + case V4L2_CID_BRIGHTNESS: 513 + c->value = cam->brightness; 514 + break; 515 + default: 516 + return -EINVAL; 517 + } 518 + return 0; 519 + } 520 + 521 + static int zr364xx_vidioc_enum_fmt_cap(struct file *file, 522 + void *priv, struct v4l2_fmtdesc *f) 523 + { 524 + if (f->index > 0) 525 + return -EINVAL; 526 + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 527 + return -EINVAL; 528 + memset(f, 0, sizeof(*f)); 529 + f->index = 0; 530 + f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 531 + f->flags = V4L2_FMT_FLAG_COMPRESSED; 532 + strcpy(f->description, "JPEG"); 533 + f->pixelformat = V4L2_PIX_FMT_JPEG; 534 + return 0; 535 + } 536 + 537 + static int zr364xx_vidioc_try_fmt_cap(struct file *file, void *priv, 538 + struct v4l2_format *f) 539 + { 540 + struct video_device *vdev = video_devdata(file); 541 + struct zr364xx_camera *cam; 542 + 543 + if (vdev == NULL) 544 + return -ENODEV; 545 + cam = video_get_drvdata(vdev); 546 + 547 + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 548 + return -EINVAL; 549 + if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) 550 + return -EINVAL; 551 + if (f->fmt.pix.field != V4L2_FIELD_ANY && 552 + f->fmt.pix.field != V4L2_FIELD_NONE) 553 + return -EINVAL; 554 + f->fmt.pix.field = V4L2_FIELD_NONE; 555 + f->fmt.pix.width = cam->width; 556 + f->fmt.pix.height = cam->height; 557 + f->fmt.pix.bytesperline = f->fmt.pix.width * 2; 558 + f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; 559 + f->fmt.pix.colorspace = 0; 560 + f->fmt.pix.priv = 0; 561 + return 0; 562 + } 563 + 564 + static int zr364xx_vidioc_g_fmt_cap(struct file *file, void *priv, 565 + struct v4l2_format *f) 566 + { 567 + struct video_device *vdev = video_devdata(file); 568 + struct zr364xx_camera *cam; 569 + 570 + if (vdev == NULL) 571 + return -ENODEV; 572 + cam = video_get_drvdata(vdev); 573 + 574 + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 575 + return -EINVAL; 576 + memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format)); 577 + f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 578 + f->fmt.pix.pixelformat = V4L2_PIX_FMT_JPEG; 579 + f->fmt.pix.field = V4L2_FIELD_NONE; 580 + f->fmt.pix.width = cam->width; 581 + f->fmt.pix.height = cam->height; 582 + f->fmt.pix.bytesperline = f->fmt.pix.width * 2; 583 + f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; 584 + f->fmt.pix.colorspace = 0; 585 + f->fmt.pix.priv = 0; 586 + return 0; 587 + } 588 + 589 + static int zr364xx_vidioc_s_fmt_cap(struct file *file, void *priv, 590 + struct v4l2_format *f) 591 + { 592 + struct video_device *vdev = video_devdata(file); 593 + struct zr364xx_camera *cam; 594 + 595 + if (vdev == NULL) 596 + return -ENODEV; 597 + cam = video_get_drvdata(vdev); 598 + 599 + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 600 + return -EINVAL; 601 + if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) 602 + return -EINVAL; 603 + if (f->fmt.pix.field != V4L2_FIELD_ANY && 604 + f->fmt.pix.field != V4L2_FIELD_NONE) 605 + return -EINVAL; 606 + f->fmt.pix.field = V4L2_FIELD_NONE; 607 + f->fmt.pix.width = cam->width; 608 + f->fmt.pix.height = cam->height; 609 + f->fmt.pix.bytesperline = f->fmt.pix.width * 2; 610 + f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; 611 + f->fmt.pix.colorspace = 0; 612 + f->fmt.pix.priv = 0; 613 + DBG("ok!"); 614 + return 0; 615 + } 616 + 617 + static int zr364xx_vidioc_streamon(struct file *file, void *priv, 618 + enum v4l2_buf_type type) 619 + { 620 + return 0; 621 + } 622 + 623 + static int zr364xx_vidioc_streamoff(struct file *file, void *priv, 624 + enum v4l2_buf_type type) 625 + { 626 + return 0; 627 + } 628 + 629 + 630 + /* open the camera */ 631 + static int zr364xx_open(struct inode *inode, struct file *file) 632 + { 633 + struct video_device *vdev = video_devdata(file); 634 + struct zr364xx_camera *cam = video_get_drvdata(vdev); 635 + struct usb_device *udev = cam->udev; 636 + int i, err; 637 + 638 + DBG("zr364xx_open"); 639 + 640 + cam->skip = 2; 641 + 642 + err = video_exclusive_open(inode, file); 643 + if (err < 0) 644 + return err; 645 + 646 + if (!cam->framebuf) { 647 + cam->framebuf = vmalloc_32(MAX_FRAME_SIZE * FRAMES); 648 + if (!cam->framebuf) { 649 + info("vmalloc_32 failed!"); 650 + return -ENOMEM; 651 + } 652 + } 653 + 654 + mutex_lock(&cam->lock); 655 + for (i = 0; init[cam->method][i].size != -1; i++) { 656 + err = 657 + send_control_msg(udev, 1, init[cam->method][i].value, 658 + 0, init[cam->method][i].bytes, 659 + init[cam->method][i].size); 660 + if (err < 0) { 661 + info("error during open sequence: %d", i); 662 + mutex_unlock(&cam->lock); 663 + return err; 664 + } 665 + } 666 + 667 + file->private_data = vdev; 668 + 669 + /* Added some delay here, since opening/closing the camera quickly, 670 + * like Ekiga does during its startup, can crash the webcam 671 + */ 672 + mdelay(100); 673 + 674 + mutex_unlock(&cam->lock); 675 + return 0; 676 + } 677 + 678 + 679 + /* release the camera */ 680 + static int zr364xx_release(struct inode *inode, struct file *file) 681 + { 682 + struct video_device *vdev = video_devdata(file); 683 + struct zr364xx_camera *cam; 684 + struct usb_device *udev; 685 + int i, err; 686 + 687 + DBG("zr364xx_release"); 688 + 689 + if (vdev == NULL) 690 + return -ENODEV; 691 + cam = video_get_drvdata(vdev); 692 + 693 + udev = cam->udev; 694 + 695 + mutex_lock(&cam->lock); 696 + for (i = 0; i < 2; i++) { 697 + err = 698 + send_control_msg(udev, 1, init[cam->method][i].value, 699 + 0, init[i][cam->method].bytes, 700 + init[cam->method][i].size); 701 + if (err < 0) { 702 + info("error during release sequence"); 703 + mutex_unlock(&cam->lock); 704 + return err; 705 + } 706 + } 707 + 708 + file->private_data = NULL; 709 + video_exclusive_release(inode, file); 710 + 711 + /* Added some delay here, since opening/closing the camera quickly, 712 + * like Ekiga does during its startup, can crash the webcam 713 + */ 714 + mdelay(100); 715 + 716 + mutex_unlock(&cam->lock); 717 + return 0; 718 + } 719 + 720 + 721 + static int zr364xx_mmap(struct file *file, struct vm_area_struct *vma) 722 + { 723 + void *pos; 724 + unsigned long start = vma->vm_start; 725 + unsigned long size = vma->vm_end - vma->vm_start; 726 + struct video_device *vdev = video_devdata(file); 727 + struct zr364xx_camera *cam; 728 + 729 + DBG("zr364xx_mmap: %ld\n", size); 730 + 731 + if (vdev == NULL) 732 + return -ENODEV; 733 + cam = video_get_drvdata(vdev); 734 + 735 + pos = cam->framebuf; 736 + while (size > 0) { 737 + if (vm_insert_page(vma, start, vmalloc_to_page(pos))) 738 + return -EAGAIN; 739 + start += PAGE_SIZE; 740 + pos += PAGE_SIZE; 741 + if (size > PAGE_SIZE) 742 + size -= PAGE_SIZE; 743 + else 744 + size = 0; 745 + } 746 + 747 + return 0; 748 + } 749 + 750 + 751 + static struct file_operations zr364xx_fops = { 752 + .owner = THIS_MODULE, 753 + .open = zr364xx_open, 754 + .release = zr364xx_release, 755 + .read = zr364xx_read, 756 + .mmap = zr364xx_mmap, 757 + .ioctl = video_ioctl2, 758 + .llseek = no_llseek, 759 + }; 760 + 761 + static struct video_device zr364xx_template = { 762 + .owner = THIS_MODULE, 763 + .name = DRIVER_DESC, 764 + .type = VID_TYPE_CAPTURE, 765 + .fops = &zr364xx_fops, 766 + .release = video_device_release, 767 + .minor = -1, 768 + 769 + .vidioc_querycap = zr364xx_vidioc_querycap, 770 + .vidioc_enum_fmt_cap = zr364xx_vidioc_enum_fmt_cap, 771 + .vidioc_try_fmt_cap = zr364xx_vidioc_try_fmt_cap, 772 + .vidioc_s_fmt_cap = zr364xx_vidioc_s_fmt_cap, 773 + .vidioc_g_fmt_cap = zr364xx_vidioc_g_fmt_cap, 774 + .vidioc_enum_input = zr364xx_vidioc_enum_input, 775 + .vidioc_g_input = zr364xx_vidioc_g_input, 776 + .vidioc_s_input = zr364xx_vidioc_s_input, 777 + .vidioc_streamon = zr364xx_vidioc_streamon, 778 + .vidioc_streamoff = zr364xx_vidioc_streamoff, 779 + .vidioc_queryctrl = zr364xx_vidioc_queryctrl, 780 + .vidioc_g_ctrl = zr364xx_vidioc_g_ctrl, 781 + .vidioc_s_ctrl = zr364xx_vidioc_s_ctrl, 782 + }; 783 + 784 + 785 + 786 + /*******************/ 787 + /* USB integration */ 788 + /*******************/ 789 + 790 + static int zr364xx_probe(struct usb_interface *intf, 791 + const struct usb_device_id *id) 792 + { 793 + struct usb_device *udev = interface_to_usbdev(intf); 794 + struct zr364xx_camera *cam = NULL; 795 + 796 + DBG("probing..."); 797 + 798 + info(DRIVER_DESC " compatible webcam plugged"); 799 + info("model %04x:%04x detected", udev->descriptor.idVendor, 800 + udev->descriptor.idProduct); 801 + 802 + if ((cam = 803 + kmalloc(sizeof(struct zr364xx_camera), GFP_KERNEL)) == NULL) { 804 + info("cam: out of memory !"); 805 + return -ENODEV; 806 + } 807 + memset(cam, 0x00, sizeof(struct zr364xx_camera)); 808 + /* save the init method used by this camera */ 809 + cam->method = id->driver_info; 810 + 811 + cam->vdev = video_device_alloc(); 812 + if (cam->vdev == NULL) { 813 + info("cam->vdev: out of memory !"); 814 + kfree(cam); 815 + return -ENODEV; 816 + } 817 + memcpy(cam->vdev, &zr364xx_template, sizeof(zr364xx_template)); 818 + video_set_drvdata(cam->vdev, cam); 819 + if (debug) 820 + cam->vdev->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG; 821 + 822 + cam->udev = udev; 823 + 824 + if ((cam->buffer = kmalloc(BUFFER_SIZE, GFP_KERNEL)) == NULL) { 825 + info("cam->buffer: out of memory !"); 826 + video_device_release(cam->vdev); 827 + kfree(cam); 828 + return -ENODEV; 829 + } 830 + 831 + switch (mode) { 832 + case 1: 833 + info("160x120 mode selected"); 834 + cam->width = 160; 835 + cam->height = 120; 836 + break; 837 + case 2: 838 + info("640x480 mode selected"); 839 + cam->width = 640; 840 + cam->height = 480; 841 + break; 842 + default: 843 + info("320x240 mode selected"); 844 + cam->width = 320; 845 + cam->height = 240; 846 + break; 847 + } 848 + 849 + m0d1[0] = mode; 850 + m1[2].value = 0xf000 + mode; 851 + m2[1].value = 0xf000 + mode; 852 + header2[437] = cam->height / 256; 853 + header2[438] = cam->height % 256; 854 + header2[439] = cam->width / 256; 855 + header2[440] = cam->width % 256; 856 + 857 + cam->nb = 0; 858 + cam->brightness = 64; 859 + mutex_init(&cam->lock); 860 + 861 + if (video_register_device(cam->vdev, VFL_TYPE_GRABBER, -1) == -1) { 862 + info("video_register_device failed"); 863 + video_device_release(cam->vdev); 864 + kfree(cam->buffer); 865 + kfree(cam); 866 + return -ENODEV; 867 + } 868 + 869 + usb_set_intfdata(intf, cam); 870 + 871 + info(DRIVER_DESC " controlling video device %d", cam->vdev->minor); 872 + return 0; 873 + } 874 + 875 + 876 + static void zr364xx_disconnect(struct usb_interface *intf) 877 + { 878 + struct zr364xx_camera *cam = usb_get_intfdata(intf); 879 + usb_set_intfdata(intf, NULL); 880 + dev_set_drvdata(&intf->dev, NULL); 881 + info(DRIVER_DESC " webcam unplugged"); 882 + if (cam->vdev) 883 + video_unregister_device(cam->vdev); 884 + cam->vdev = NULL; 885 + kfree(cam->buffer); 886 + if (cam->framebuf) 887 + vfree(cam->framebuf); 888 + kfree(cam); 889 + } 890 + 891 + 892 + 893 + /**********************/ 894 + /* Module integration */ 895 + /**********************/ 896 + 897 + static struct usb_driver zr364xx_driver = { 898 + .name = "zr364xx", 899 + .probe = zr364xx_probe, 900 + .disconnect = zr364xx_disconnect, 901 + .id_table = device_table 902 + }; 903 + 904 + 905 + static int __init zr364xx_init(void) 906 + { 907 + int retval; 908 + retval = usb_register(&zr364xx_driver) < 0; 909 + if (retval) 910 + info("usb_register failed!"); 911 + else 912 + info(DRIVER_DESC " module loaded"); 913 + return retval; 914 + } 915 + 916 + 917 + static void __exit zr364xx_exit(void) 918 + { 919 + info(DRIVER_DESC " module unloaded"); 920 + usb_deregister(&zr364xx_driver); 921 + } 922 + 923 + 924 + module_init(zr364xx_init); 925 + module_exit(zr364xx_exit); 926 + 927 + MODULE_AUTHOR(DRIVER_AUTHOR); 928 + MODULE_DESCRIPTION(DRIVER_DESC); 929 + MODULE_LICENSE("GPL");