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Diffstat (limited to 'drivers/media/video/gspca/pac207.c')
-rw-r--r--drivers/media/video/gspca/pac207.c622
1 files changed, 622 insertions, 0 deletions
diff --git a/drivers/media/video/gspca/pac207.c b/drivers/media/video/gspca/pac207.c
new file mode 100644
index 000000000000..fa7abc411090
--- /dev/null
+++ b/drivers/media/video/gspca/pac207.c
@@ -0,0 +1,622 @@
+/*
+ * Pixart PAC207BCA library
+ *
+ * Copyright (C) 2008 Hans de Goede <j.w.r.degoede@hhs.nl>
+ * Copyright (C) 2005 Thomas Kaiser thomas@kaiser-linux.li
+ * Copyleft (C) 2005 Michel Xhaard mxhaard@magic.fr
+ *
+ * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#define MODULE_NAME "pac207"
+
+#include "gspca.h"
+
+#define DRIVER_VERSION_NUMBER KERNEL_VERSION(2, 1, 7)
+static const char version[] = "2.1.7";
+
+MODULE_AUTHOR("Hans de Goede <j.w.r.degoede@hhs.nl>");
+MODULE_DESCRIPTION("Pixart PAC207");
+MODULE_LICENSE("GPL");
+
+#define PAC207_CTRL_TIMEOUT 100 /* ms */
+
+#define PAC207_BRIGHTNESS_MIN 0
+#define PAC207_BRIGHTNESS_MAX 255
+#define PAC207_BRIGHTNESS_DEFAULT 4 /* power on default: 4 */
+
+/* An exposure value of 4 also works (3 does not) but then we need to lower
+ the compression balance setting when in 352x288 mode, otherwise the usb
+ bandwidth is not enough and packets get dropped resulting in corrupt
+ frames. The problem with this is that when the compression balance gets
+ lowered below 0x80, the pac207 starts using a different compression
+ algorithm for some lines, these lines get prefixed with a 0x2dd2 prefix
+ and currently we do not know how to decompress these lines, so for now
+ we use a minimum exposure value of 5 */
+#define PAC207_EXPOSURE_MIN 5
+#define PAC207_EXPOSURE_MAX 26
+#define PAC207_EXPOSURE_DEFAULT 5 /* power on default: 3 ?? */
+#define PAC207_EXPOSURE_KNEE 11 /* 4 = 30 fps, 11 = 8, 15 = 6 */
+
+#define PAC207_GAIN_MIN 0
+#define PAC207_GAIN_MAX 31
+#define PAC207_GAIN_DEFAULT 9 /* power on default: 9 */
+#define PAC207_GAIN_KNEE 20
+
+#define PAC207_AUTOGAIN_DEADZONE 30
+/* We calculating the autogain at the end of the transfer of a frame, at this
+ moment a frame with the old settings is being transmitted, and a frame is
+ being captured with the old settings. So if we adjust the autogain we must
+ ignore atleast the 2 next frames for the new settings to come into effect
+ before doing any other adjustments */
+#define PAC207_AUTOGAIN_IGNORE_FRAMES 3
+
+/* specific webcam descriptor */
+struct sd {
+ struct gspca_dev gspca_dev; /* !! must be the first item */
+
+ u8 mode;
+
+ u8 brightness;
+ u8 exposure;
+ u8 autogain;
+ u8 gain;
+
+ u8 sof_read;
+ u8 header_read;
+ u8 autogain_ignore_frames;
+
+ atomic_t avg_lum;
+};
+
+/* V4L2 controls supported by the driver */
+static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
+static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val);
+static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val);
+
+static struct ctrl sd_ctrls[] = {
+#define SD_BRIGHTNESS 0
+ {
+ {
+ .id = V4L2_CID_BRIGHTNESS,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Brightness",
+ .minimum = PAC207_BRIGHTNESS_MIN,
+ .maximum = PAC207_BRIGHTNESS_MAX,
+ .step = 1,
+ .default_value = PAC207_BRIGHTNESS_DEFAULT,
+ .flags = 0,
+ },
+ .set = sd_setbrightness,
+ .get = sd_getbrightness,
+ },
+#define SD_EXPOSURE 1
+ {
+ {
+ .id = V4L2_CID_EXPOSURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "exposure",
+ .minimum = PAC207_EXPOSURE_MIN,
+ .maximum = PAC207_EXPOSURE_MAX,
+ .step = 1,
+ .default_value = PAC207_EXPOSURE_DEFAULT,
+ .flags = 0,
+ },
+ .set = sd_setexposure,
+ .get = sd_getexposure,
+ },
+#define SD_AUTOGAIN 2
+ {
+ {
+ .id = V4L2_CID_AUTOGAIN,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Auto Gain",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 1,
+ .flags = 0,
+ },
+ .set = sd_setautogain,
+ .get = sd_getautogain,
+ },
+#define SD_GAIN 3
+ {
+ {
+ .id = V4L2_CID_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "gain",
+ .minimum = PAC207_GAIN_MIN,
+ .maximum = PAC207_GAIN_MAX,
+ .step = 1,
+ .default_value = PAC207_GAIN_DEFAULT,
+ .flags = 0,
+ },
+ .set = sd_setgain,
+ .get = sd_getgain,
+ },
+};
+
+static struct v4l2_pix_format sif_mode[] = {
+ {176, 144, V4L2_PIX_FMT_PAC207, V4L2_FIELD_NONE,
+ .bytesperline = 176,
+ .sizeimage = (176 + 2) * 144,
+ /* uncompressed, add 2 bytes / line for line header */
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 1},
+ {352, 288, V4L2_PIX_FMT_PAC207, V4L2_FIELD_NONE,
+ .bytesperline = 352,
+ /* compressed, but only when needed (not compressed
+ when the framerate is low) */
+ .sizeimage = (352 + 2) * 288,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 0},
+};
+
+static const __u8 pac207_sensor_init[][8] = {
+ {0x10, 0x12, 0x0d, 0x12, 0x0c, 0x01, 0x29, 0xf0},
+ {0x00, 0x64, 0x64, 0x64, 0x04, 0x10, 0xf0, 0x30},
+ {0x00, 0x00, 0x00, 0x70, 0xa0, 0xf8, 0x00, 0x00},
+ {0x00, 0x00, 0x32, 0x00, 0x96, 0x00, 0xa2, 0x02},
+ {0x32, 0x00, 0x96, 0x00, 0xA2, 0x02, 0xaf, 0x00},
+};
+
+ /* 48 reg_72 Rate Control end BalSize_4a =0x36 */
+static const __u8 PacReg72[] = { 0x00, 0x00, 0x36, 0x00 };
+
+static const unsigned char pac207_sof_marker[5] =
+ { 0xff, 0xff, 0x00, 0xff, 0x96 };
+
+static int pac207_write_regs(struct gspca_dev *gspca_dev, u16 index,
+ const u8 *buffer, u16 length)
+{
+ struct usb_device *udev = gspca_dev->dev;
+ int err;
+
+ memcpy(gspca_dev->usb_buf, buffer, length);
+
+ err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x01,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
+ 0x00, index,
+ gspca_dev->usb_buf, length, PAC207_CTRL_TIMEOUT);
+ if (err < 0)
+ PDEBUG(D_ERR,
+ "Failed to write registers to index 0x%04X, error %d)",
+ index, err);
+
+ return err;
+}
+
+
+int pac207_write_reg(struct gspca_dev *gspca_dev, u16 index, u16 value)
+{
+ struct usb_device *udev = gspca_dev->dev;
+ int err;
+
+ err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
+ value, index, NULL, 0, PAC207_CTRL_TIMEOUT);
+ if (err)
+ PDEBUG(D_ERR, "Failed to write a register (index 0x%04X,"
+ " value 0x%02X, error %d)", index, value, err);
+
+ return err;
+}
+
+
+int pac207_read_reg(struct gspca_dev *gspca_dev, u16 index)
+{
+ struct usb_device *udev = gspca_dev->dev;
+ int res;
+
+ res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x00,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
+ 0x00, index,
+ gspca_dev->usb_buf, 1, PAC207_CTRL_TIMEOUT);
+ if (res < 0) {
+ PDEBUG(D_ERR,
+ "Failed to read a register (index 0x%04X, error %d)",
+ index, res);
+ return res;
+ }
+
+ return gspca_dev->usb_buf[0];
+}
+
+/* this function is called at probe time */
+static int sd_config(struct gspca_dev *gspca_dev,
+ const struct usb_device_id *id)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ struct cam *cam;
+ u8 idreg[2];
+
+ idreg[0] = pac207_read_reg(gspca_dev, 0x0000);
+ idreg[1] = pac207_read_reg(gspca_dev, 0x0001);
+ idreg[0] = ((idreg[0] & 0x0F) << 4) | ((idreg[1] & 0xf0) >> 4);
+ idreg[1] = idreg[1] & 0x0f;
+ PDEBUG(D_PROBE, "Pixart Sensor ID 0x%02X Chips ID 0x%02X",
+ idreg[0], idreg[1]);
+
+ if (idreg[0] != 0x27) {
+ PDEBUG(D_PROBE, "Error invalid sensor ID!");
+ return -ENODEV;
+ }
+
+ pac207_write_reg(gspca_dev, 0x41, 0x00);
+ /* Bit_0=Image Format,
+ * Bit_1=LED,
+ * Bit_2=Compression test mode enable */
+ pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */
+ pac207_write_reg(gspca_dev, 0x11, 0x30); /* Analog Bias */
+
+ PDEBUG(D_PROBE,
+ "Pixart PAC207BCA Image Processor and Control Chip detected"
+ " (vid/pid 0x%04X:0x%04X)", id->idVendor, id->idProduct);
+
+ cam = &gspca_dev->cam;
+ cam->dev_name = (char *) id->driver_info;
+ cam->epaddr = 0x05;
+ cam->cam_mode = sif_mode;
+ cam->nmodes = ARRAY_SIZE(sif_mode);
+ sd->brightness = PAC207_BRIGHTNESS_DEFAULT;
+ sd->exposure = PAC207_EXPOSURE_DEFAULT;
+ sd->gain = PAC207_GAIN_DEFAULT;
+
+ return 0;
+}
+
+/* this function is called at open time */
+static int sd_open(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->autogain = 1;
+ return 0;
+}
+
+/* -- start the camera -- */
+static void sd_start(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ __u8 mode;
+
+ pac207_write_reg(gspca_dev, 0x0f, 0x10); /* Power control (Bit 6-0) */
+ pac207_write_regs(gspca_dev, 0x0002, pac207_sensor_init[0], 8);
+ pac207_write_regs(gspca_dev, 0x000a, pac207_sensor_init[1], 8);
+ pac207_write_regs(gspca_dev, 0x0012, pac207_sensor_init[2], 8);
+ pac207_write_regs(gspca_dev, 0x0040, pac207_sensor_init[3], 8);
+ pac207_write_regs(gspca_dev, 0x0042, pac207_sensor_init[4], 8);
+ pac207_write_regs(gspca_dev, 0x0048, PacReg72, 4);
+
+ /* Compression Balance */
+ if (gspca_dev->width == 176)
+ pac207_write_reg(gspca_dev, 0x4a, 0xff);
+ else
+ pac207_write_reg(gspca_dev, 0x4a, 0x88);
+ pac207_write_reg(gspca_dev, 0x4b, 0x00); /* Sram test value */
+ pac207_write_reg(gspca_dev, 0x08, sd->brightness);
+
+ /* PGA global gain (Bit 4-0) */
+ pac207_write_reg(gspca_dev, 0x0e, sd->gain);
+ pac207_write_reg(gspca_dev, 0x02, sd->exposure); /* PXCK = 12MHz /n */
+
+ mode = 0x02; /* Image Format (Bit 0), LED (1), Compr. test mode (2) */
+ if (gspca_dev->width == 176) { /* 176x144 */
+ mode |= 0x01;
+ PDEBUG(D_STREAM, "pac207_start mode 176x144");
+ } else { /* 352x288 */
+ PDEBUG(D_STREAM, "pac207_start mode 352x288");
+ }
+ pac207_write_reg(gspca_dev, 0x41, mode);
+
+ pac207_write_reg(gspca_dev, 0x13, 0x01); /* Bit 0, auto clear */
+ pac207_write_reg(gspca_dev, 0x1c, 0x01); /* not documented */
+ msleep(10);
+ pac207_write_reg(gspca_dev, 0x40, 0x01); /* Start ISO pipe */
+
+ sd->sof_read = 0;
+ sd->autogain_ignore_frames = 0;
+ atomic_set(&sd->avg_lum, -1);
+}
+
+static void sd_stopN(struct gspca_dev *gspca_dev)
+{
+ pac207_write_reg(gspca_dev, 0x40, 0x00); /* Stop ISO pipe */
+ pac207_write_reg(gspca_dev, 0x41, 0x00); /* Turn of LED */
+ pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */
+}
+
+static void sd_stop0(struct gspca_dev *gspca_dev)
+{
+}
+
+/* this function is called at close time */
+static void sd_close(struct gspca_dev *gspca_dev)
+{
+}
+
+static void pac207_do_auto_gain(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ int avg_lum = atomic_read(&sd->avg_lum);
+
+ if (avg_lum == -1)
+ return;
+
+ if (sd->autogain_ignore_frames > 0)
+ sd->autogain_ignore_frames--;
+ else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum,
+ 100 + sd->brightness / 2, PAC207_AUTOGAIN_DEADZONE,
+ PAC207_GAIN_KNEE, PAC207_EXPOSURE_KNEE))
+ sd->autogain_ignore_frames = PAC207_AUTOGAIN_IGNORE_FRAMES;
+}
+
+static unsigned char *pac207_find_sof(struct gspca_dev *gspca_dev,
+ unsigned char *m, int len)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ int i;
+
+ /* Search for the SOF marker (fixed part) in the header */
+ for (i = 0; i < len; i++) {
+ if (m[i] == pac207_sof_marker[sd->sof_read]) {
+ sd->sof_read++;
+ if (sd->sof_read == sizeof(pac207_sof_marker)) {
+ PDEBUG(D_STREAM,
+ "SOF found, bytes to analyze: %u."
+ " Frame starts at byte #%u",
+ len, i + 1);
+ sd->sof_read = 0;
+ return m + i + 1;
+ }
+ } else {
+ sd->sof_read = 0;
+ }
+ }
+
+ return NULL;
+}
+
+static void sd_pkt_scan(struct gspca_dev *gspca_dev,
+ struct gspca_frame *frame,
+ __u8 *data,
+ int len)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ unsigned char *sof;
+
+ sof = pac207_find_sof(gspca_dev, data, len);
+ if (sof) {
+ int n;
+
+ /* finish decoding current frame */
+ n = sof - data;
+ if (n > sizeof pac207_sof_marker)
+ n -= sizeof pac207_sof_marker;
+ else
+ n = 0;
+ frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
+ data, n);
+ sd->header_read = 0;
+ gspca_frame_add(gspca_dev, FIRST_PACKET, frame, NULL, 0);
+ len -= sof - data;
+ data = sof;
+ }
+ if (sd->header_read < 11) {
+ int needed;
+
+ /* get average lumination from frame header (byte 5) */
+ if (sd->header_read < 5) {
+ needed = 5 - sd->header_read;
+ if (len >= needed)
+ atomic_set(&sd->avg_lum, data[needed - 1]);
+ }
+ /* skip the rest of the header */
+ needed = 11 - sd->header_read;
+ if (len <= needed) {
+ sd->header_read += len;
+ return;
+ }
+ data += needed;
+ len -= needed;
+ sd->header_read = 11;
+ }
+
+ gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
+}
+
+static void setbrightness(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ pac207_write_reg(gspca_dev, 0x08, sd->brightness);
+ pac207_write_reg(gspca_dev, 0x13, 0x01); /* Bit 0, auto clear */
+ pac207_write_reg(gspca_dev, 0x1c, 0x01); /* not documented */
+}
+
+static void setexposure(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ pac207_write_reg(gspca_dev, 0x02, sd->exposure);
+ pac207_write_reg(gspca_dev, 0x13, 0x01); /* Bit 0, auto clear */
+ pac207_write_reg(gspca_dev, 0x1c, 0x01); /* not documented */
+}
+
+static void setgain(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ pac207_write_reg(gspca_dev, 0x0e, sd->gain);
+ pac207_write_reg(gspca_dev, 0x13, 0x01); /* Bit 0, auto clear */
+ pac207_write_reg(gspca_dev, 0x1c, 0x01); /* not documented */
+}
+
+static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->brightness = val;
+ if (gspca_dev->streaming)
+ setbrightness(gspca_dev);
+ return 0;
+}
+
+static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->brightness;
+ return 0;
+}
+
+static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->exposure = val;
+ if (gspca_dev->streaming)
+ setexposure(gspca_dev);
+ return 0;
+}
+
+static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->exposure;
+ return 0;
+}
+
+static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->gain = val;
+ if (gspca_dev->streaming)
+ setgain(gspca_dev);
+ return 0;
+}
+
+static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->gain;
+ return 0;
+}
+
+static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ sd->autogain = val;
+ /* when switching to autogain set defaults to make sure
+ we are on a valid point of the autogain gain /
+ exposure knee graph, and give this change time to
+ take effect before doing autogain. */
+ if (sd->autogain) {
+ sd->exposure = PAC207_EXPOSURE_DEFAULT;
+ sd->gain = PAC207_GAIN_DEFAULT;
+ if (gspca_dev->streaming) {
+ sd->autogain_ignore_frames =
+ PAC207_AUTOGAIN_IGNORE_FRAMES;
+ setexposure(gspca_dev);
+ setgain(gspca_dev);
+ }
+ }
+
+ return 0;
+}
+
+static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ *val = sd->autogain;
+ return 0;
+}
+
+/* sub-driver description */
+static const struct sd_desc sd_desc = {
+ .name = MODULE_NAME,
+ .ctrls = sd_ctrls,
+ .nctrls = ARRAY_SIZE(sd_ctrls),
+ .config = sd_config,
+ .open = sd_open,
+ .start = sd_start,
+ .stopN = sd_stopN,
+ .stop0 = sd_stop0,
+ .close = sd_close,
+ .dq_callback = pac207_do_auto_gain,
+ .pkt_scan = sd_pkt_scan,
+};
+
+/* -- module initialisation -- */
+#define DVNM(name) .driver_info = (kernel_ulong_t) name
+static const __devinitdata struct usb_device_id device_table[] = {
+ {USB_DEVICE(0x041e, 0x4028), DVNM("Creative Webcam Vista Plus")},
+ {USB_DEVICE(0x093a, 0x2460), DVNM("Q-Tec Webcam 100")},
+ {USB_DEVICE(0x093a, 0x2463), DVNM("Philips spc200nc pac207")},
+ {USB_DEVICE(0x093a, 0x2464), DVNM("Labtec Webcam 1200")},
+ {USB_DEVICE(0x093a, 0x2468), DVNM("PAC207")},
+ {USB_DEVICE(0x093a, 0x2470), DVNM("Genius GF112")},
+ {USB_DEVICE(0x093a, 0x2471), DVNM("Genius VideoCam GE111")},
+ {USB_DEVICE(0x093a, 0x2472), DVNM("Genius VideoCam GE110")},
+ {USB_DEVICE(0x2001, 0xf115), DVNM("D-Link DSB-C120")},
+ {}
+};
+MODULE_DEVICE_TABLE(usb, device_table);
+
+/* -- device connect -- */
+static int sd_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
+ THIS_MODULE);
+}
+
+static struct usb_driver sd_driver = {
+ .name = MODULE_NAME,
+ .id_table = device_table,
+ .probe = sd_probe,
+ .disconnect = gspca_disconnect,
+};
+
+/* -- module insert / remove -- */
+static int __init sd_mod_init(void)
+{
+ if (usb_register(&sd_driver) < 0)
+ return -1;
+ PDEBUG(D_PROBE, "v%s registered", version);
+ return 0;
+}
+static void __exit sd_mod_exit(void)
+{
+ usb_deregister(&sd_driver);
+ PDEBUG(D_PROBE, "deregistered");
+}
+
+module_init(sd_mod_init);
+module_exit(sd_mod_exit);
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