[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / dvb / dvb-usb / dib0700_core.c

/* Linux driver for devices based on the DiBcom DiB0700 USB bridge
 *
 *	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, version 2.
 *
 *  Copyright (C) 2005-6 DiBcom, SA
 */
#include "dib0700.h"

/* debug */
int dvb_usb_dib0700_debug;
module_param_named(debug,dvb_usb_dib0700_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level (1=info,2=fw,4=fwdata,8=data (or-able))." DVB_USB_DEBUG_STATUS);

int dvb_usb_dib0700_ir_proto = 1;
module_param(dvb_usb_dib0700_ir_proto, int, 0644);
MODULE_PARM_DESC(dvb_usb_dib0700_ir_proto, "set ir protocol (0=NEC, 1=RC5 (default), 2=RC6).");

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

/* expecting rx buffer: request data[0] data[1] ... data[2] */
static int dib0700_ctrl_wr(struct dvb_usb_device *d, u8 *tx, u8 txlen)
{
	int status;

	deb_data(">>> ");
	debug_dump(tx,txlen,deb_data);

	status = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev,0),
		tx[0], USB_TYPE_VENDOR | USB_DIR_OUT, 0, 0, tx, txlen,
		USB_CTRL_GET_TIMEOUT);

	if (status != txlen)
		deb_data("ep 0 write error (status = %d, len: %d)\n",status,txlen);

	return status < 0 ? status : 0;
}

/* expecting tx buffer: request data[0] ... data[n] (n <= 4) */
int dib0700_ctrl_rd(struct dvb_usb_device *d, u8 *tx, u8 txlen, u8 *rx, u8 rxlen)
{
	u16 index, value;
	int status;

	if (txlen < 2) {
		err("tx buffer length is smaller than 2. Makes no sense.");
		return -EINVAL;
	}
	if (txlen > 4) {
		err("tx buffer length is larger than 4. Not supported.");
		return -EINVAL;
	}

	deb_data(">>> ");
	debug_dump(tx,txlen,deb_data);

	value = ((txlen - 2) << 8) | tx[1];
	index = 0;
	if (txlen > 2)
		index |= (tx[2] << 8);
	if (txlen > 3)
		index |= tx[3];

	status = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev,0), tx[0],
			USB_TYPE_VENDOR | USB_DIR_IN, value, index, rx, rxlen,
			USB_CTRL_GET_TIMEOUT);

	if (status < 0)
		deb_info("ep 0 read error (status = %d)\n",status);

	deb_data("<<< ");
	debug_dump(rx,rxlen,deb_data);

	return status; /* length in case of success */
}

int dib0700_set_gpio(struct dvb_usb_device *d, enum dib07x0_gpios gpio, u8 gpio_dir, u8 gpio_val)
{
	u8 buf[3] = { REQUEST_SET_GPIO, gpio, ((gpio_dir & 0x01) << 7) | ((gpio_val & 0x01) << 6) };
	return dib0700_ctrl_wr(d,buf,3);
}

/*
 * I2C master xfer function
 */
static int dib0700_i2c_xfer(struct i2c_adapter *adap,struct i2c_msg *msg,int num)
{
	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	int i,len;
	u8 buf[255];

	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
		return -EAGAIN;

	for (i = 0; i < num; i++) {
		/* fill in the address */
		buf[1] = (msg[i].addr << 1);
		/* fill the buffer */
		memcpy(&buf[2], msg[i].buf, msg[i].len);

		/* write/read request */
		if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
			buf[0] = REQUEST_I2C_READ;
			buf[1] |= 1;

			/* special thing in the current firmware: when length is zero the read-failed */
			if ((len = dib0700_ctrl_rd(d, buf, msg[i].len + 2, msg[i+1].buf, msg[i+1].len)) <= 0) {
				deb_info("I2C read failed on address %x\n", msg[i].addr);
				break;
			}

			msg[i+1].len = len;

			i++;
		} else {
			buf[0] = REQUEST_I2C_WRITE;
			if (dib0700_ctrl_wr(d, buf, msg[i].len + 2) < 0)
				break;
		}
	}

	mutex_unlock(&d->i2c_mutex);
	return i;
}

static u32 dib0700_i2c_func(struct i2c_adapter *adapter)
{
	return I2C_FUNC_I2C;
}

struct i2c_algorithm dib0700_i2c_algo = {
	.master_xfer   = dib0700_i2c_xfer,
	.functionality = dib0700_i2c_func,
};

int dib0700_identify_state(struct usb_device *udev, struct dvb_usb_device_properties *props,
			struct dvb_usb_device_description **desc, int *cold)
{
	u8 b[16];
	s16 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev,0),
		REQUEST_GET_VERSION, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, b, 16, USB_CTRL_GET_TIMEOUT);

	deb_info("FW GET_VERSION length: %d\n",ret);

	*cold = ret <= 0;

	deb_info("cold: %d\n", *cold);
	return 0;
}

static int dib0700_set_clock(struct dvb_usb_device *d, u8 en_pll,
	u8 pll_src, u8 pll_range, u8 clock_gpio3, u16 pll_prediv,
	u16 pll_loopdiv, u16 free_div, u16 dsuScaler)
{
	u8 b[10];
	b[0] = REQUEST_SET_CLOCK;
	b[1] = (en_pll << 7) | (pll_src << 6) | (pll_range << 5) | (clock_gpio3 << 4);
	b[2] = (pll_prediv >> 8)  & 0xff; // MSB
	b[3] =  pll_prediv        & 0xff; // LSB
	b[4] = (pll_loopdiv >> 8) & 0xff; // MSB
	b[5] =  pll_loopdiv       & 0xff; // LSB
	b[6] = (free_div >> 8)    & 0xff; // MSB
	b[7] =  free_div          & 0xff; // LSB
	b[8] = (dsuScaler >> 8)   & 0xff; // MSB
	b[9] =  dsuScaler         & 0xff; // LSB

	return dib0700_ctrl_wr(d, b, 10);
}

int dib0700_ctrl_clock(struct dvb_usb_device *d, u32 clk_MHz, u8 clock_out_gp3)
{
	switch (clk_MHz) {
		case 72: dib0700_set_clock(d, 1, 0, 1, clock_out_gp3, 2, 24, 0, 0x4c); break;
		default: return -EINVAL;
	}
	return 0;
}

static int dib0700_jumpram(struct usb_device *udev, u32 address)
{
	int ret, actlen;
	u8 buf[8] = { REQUEST_JUMPRAM, 0, 0, 0,
		(address >> 24) & 0xff,
		(address >> 16) & 0xff,
		(address >> 8)  & 0xff,
		 address        & 0xff };

	if ((ret = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 0x01),buf,8,&actlen,1000)) < 0) {
		deb_fw("jumpram to 0x%x failed\n",address);
		return ret;
	}
	if (actlen != 8) {
		deb_fw("jumpram to 0x%x failed\n",address);
		return -EIO;
	}
	return 0;
}

int dib0700_download_firmware(struct usb_device *udev, const struct firmware *fw)
{
	struct hexline hx;
	int pos = 0, ret, act_len;

	u8 buf[260];

	while ((ret = dvb_usb_get_hexline(fw, &hx, &pos)) > 0) {
		deb_fwdata("writing to address 0x%08x (buffer: 0x%02x %02x)\n",hx.addr, hx.len, hx.chk);

		buf[0] = hx.len;
		buf[1] = (hx.addr >> 8) & 0xff;
		buf[2] =  hx.addr       & 0xff;
		buf[3] = hx.type;
		memcpy(&buf[4],hx.data,hx.len);
		buf[4+hx.len] = hx.chk;

		ret = usb_bulk_msg(udev,
			usb_sndbulkpipe(udev, 0x01),
			buf,
			hx.len + 5,
			&act_len,
			1000);

		if (ret < 0) {
			err("firmware download failed at %d with %d",pos,ret);
			return ret;
		}
	}

	if (ret == 0) {
		/* start the firmware */
		if ((ret = dib0700_jumpram(udev, 0x70000000)) == 0) {
			info("firmware started successfully.");
			msleep(500);
		}
	} else
		ret = -EIO;

	return ret;
}

int dib0700_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
{
	struct dib0700_state *st = adap->dev->priv;
	u8 b[4];

	b[0] = REQUEST_ENABLE_VIDEO;
	b[1] = (onoff << 4) | 0x00; /* this bit gives a kind of command, rather than enabling something or not */
	b[2] = (0x01 << 4); /* Master mode */
	b[3] = 0x00;

	deb_info("modifying (%d) streaming state for %d\n", onoff, adap->id);

	if (onoff)
		st->channel_state |=   1 << adap->id;
	else
		st->channel_state &= ~(1 << adap->id);

	b[2] |= st->channel_state;

	deb_info("data for streaming: %x %x\n",b[1],b[2]);

	return dib0700_ctrl_wr(adap->dev, b, 4);
}

int dib0700_rc_setup(struct dvb_usb_device *d)
{
	u8 rc_setup[3] = {REQUEST_SET_RC, dvb_usb_dib0700_ir_proto, 0};
	int i = dib0700_ctrl_wr(d, rc_setup, 3);
	if (i<0) {
		err("ir protocol setup failed");
		return -1;
	}
	return 0;
}

static int dib0700_probe(struct usb_interface *intf,
		const struct usb_device_id *id)
{
	int i;
	struct dvb_usb_device *dev;

	for (i = 0; i < dib0700_device_count; i++)
		if (dvb_usb_device_init(intf, &dib0700_devices[i], THIS_MODULE,
					&dev, adapter_nr) == 0)
		{
			dib0700_rc_setup(dev);
			return 0;
		}

	return -ENODEV;
}

static struct usb_driver dib0700_driver = {
	.name       = "dvb_usb_dib0700",
	.probe      = dib0700_probe,
	.disconnect = dvb_usb_device_exit,
	.id_table   = dib0700_usb_id_table,
};

/* module stuff */
static int __init dib0700_module_init(void)
{
	int result;
	info("loaded with support for %d different device-types", dib0700_device_count);
	if ((result = usb_register(&dib0700_driver))) {
		err("usb_register failed. Error number %d",result);
		return result;
	}

	return 0;
}

static void __exit dib0700_module_exit(void)
{
	/* deregister this driver from the USB subsystem */
	usb_deregister(&dib0700_driver);
}

module_init (dib0700_module_init);
module_exit (dib0700_module_exit);

MODULE_AUTHOR("Patrick Boettcher <pboettcher@dibcom.fr>");
MODULE_DESCRIPTION("Driver for devices based on DiBcom DiB0700 - USB bridge");
MODULE_VERSION("1.0");
MODULE_LICENSE("GPL");
Commit	Line	Data
b7f54910 PB	1	/* Linux driver for devices based on the DiBcom DiB0700 USB bridge
	2	*
	3	* This program is free software; you can redistribute it and/or modify it
	4	* under the terms of the GNU General Public License as published by the Free
	5	* Software Foundation, version 2.
	6	*
	7	* Copyright (C) 2005-6 DiBcom, SA
	8	*/
	9	#include "dib0700.h"
	10
	11	/* debug */
	12	int dvb_usb_dib0700_debug;
	13	module_param_named(debug,dvb_usb_dib0700_debug, int, 0644);
	14	MODULE_PARM_DESC(debug, "set debugging level (1=info,2=fw,4=fwdata,8=data (or-able))." DVB_USB_DEBUG_STATUS);
	15
58e6f95e	16	int dvb_usb_dib0700_ir_proto = 1;
89f4267d JG	17	module_param(dvb_usb_dib0700_ir_proto, int, 0644);
	18	MODULE_PARM_DESC(dvb_usb_dib0700_ir_proto, "set ir protocol (0=NEC, 1=RC5 (default), 2=RC6).");
	19
78e92006 JG	20	DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
78e92006 JG	21
b7f54910 PB	22	/* expecting rx buffer: request data[0] data[1] ... data[2] */
	23	static int dib0700_ctrl_wr(struct dvb_usb_device d, u8 tx, u8 txlen)
	24	{
	25	int status;
	26
	27	deb_data(">>> ");
	28	debug_dump(tx,txlen,deb_data);
	29
	30	status = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev,0),
	31	tx[0], USB_TYPE_VENDOR \| USB_DIR_OUT, 0, 0, tx, txlen,
	32	USB_CTRL_GET_TIMEOUT);
	33
	34	if (status != txlen)
6958effe	35	deb_data("ep 0 write error (status = %d, len: %d)\n",status,txlen);
b7f54910 PB	36
	37	return status < 0 ? status : 0;
	38	}
	39
	40	/* expecting tx buffer: request data[0] ... data[n] (n <= 4) */
54d75eba	41	int dib0700_ctrl_rd(struct dvb_usb_device d, u8 tx, u8 txlen, u8 *rx, u8 rxlen)
b7f54910 PB	42	{
	43	u16 index, value;
	44	int status;
	45
	46	if (txlen < 2) {
	47	err("tx buffer length is smaller than 2. Makes no sense.");
	48	return -EINVAL;
	49	}
	50	if (txlen > 4) {
	51	err("tx buffer length is larger than 4. Not supported.");
	52	return -EINVAL;
	53	}
	54
	55	deb_data(">>> ");
	56	debug_dump(tx,txlen,deb_data);
	57
	58	value = ((txlen - 2) << 8) \| tx[1];
	59	index = 0;
	60	if (txlen > 2)
	61	index \|= (tx[2] << 8);
	62	if (txlen > 3)
	63	index \|= tx[3];
	64
b7f54910 PB	65	status = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev,0), tx[0],
	66	USB_TYPE_VENDOR \| USB_DIR_IN, value, index, rx, rxlen,
	67	USB_CTRL_GET_TIMEOUT);
	68
	69	if (status < 0)
6958effe	70	deb_info("ep 0 read error (status = %d)\n",status);
b7f54910 PB	71
	72	deb_data("<<< ");
	73	debug_dump(rx,rxlen,deb_data);
	74
	75	return status; /* length in case of success */
	76	}
	77
	78	int dib0700_set_gpio(struct dvb_usb_device *d, enum dib07x0_gpios gpio, u8 gpio_dir, u8 gpio_val)
	79	{
	80	u8 buf[3] = { REQUEST_SET_GPIO, gpio, ((gpio_dir & 0x01) << 7) \| ((gpio_val & 0x01) << 6) };
	81	return dib0700_ctrl_wr(d,buf,3);
	82	}
	83
	84	/*
	85	* I2C master xfer function
	86	*/
	87	static int dib0700_i2c_xfer(struct i2c_adapter adap,struct i2c_msg msg,int num)
	88	{
	89	struct dvb_usb_device *d = i2c_get_adapdata(adap);
	90	int i,len;
	91	u8 buf[255];
	92
	93	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
	94	return -EAGAIN;
	95
	96	for (i = 0; i < num; i++) {
	97	/* fill in the address */
	98	buf[1] = (msg[i].addr << 1);
	99	/* fill the buffer */
	100	memcpy(&buf[2], msg[i].buf, msg[i].len);
	101
	102	/* write/read request */
	103	if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
	104	buf[0] = REQUEST_I2C_READ;
	105	buf[1] \|= 1;
	106
	107	/* special thing in the current firmware: when length is zero the read-failed */
303cbeaa PB	108	if ((len = dib0700_ctrl_rd(d, buf, msg[i].len + 2, msg[i+1].buf, msg[i+1].len)) <= 0) {
303cbeaa PB	109	deb_info("I2C read failed on address %x\n", msg[i].addr);
b7f54910	110	break;
303cbeaa	111	}
b7f54910 PB	112
	113	msg[i+1].len = len;
	114
	115	i++;
	116	} else {
	117	buf[0] = REQUEST_I2C_WRITE;
	118	if (dib0700_ctrl_wr(d, buf, msg[i].len + 2) < 0)
	119	break;
	120	}
	121	}
	122
	123	mutex_unlock(&d->i2c_mutex);
	124	return i;
	125	}
	126
	127	static u32 dib0700_i2c_func(struct i2c_adapter *adapter)
	128	{
	129	return I2C_FUNC_I2C;
	130	}
	131
	132	struct i2c_algorithm dib0700_i2c_algo = {
	133	.master_xfer = dib0700_i2c_xfer,
	134	.functionality = dib0700_i2c_func,
	135	};
	136
6958effe PB	137	int dib0700_identify_state(struct usb_device udev, struct dvb_usb_device_properties props,
	138	struct dvb_usb_device_description *desc, int cold)
	139	{
a75763ff PB	140	u8 b[16];
	141	s16 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev,0),
	142	REQUEST_GET_VERSION, USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0, b, 16, USB_CTRL_GET_TIMEOUT);
	143
	144	deb_info("FW GET_VERSION length: %d\n",ret);
	145
	146	*cold = ret <= 0;
6958effe PB	147
6958effe PB	148	deb_info("cold: %d\n", *cold);
6958effe PB	149	return 0;
	150	}
	151
a75763ff PB	152	static int dib0700_set_clock(struct dvb_usb_device *d, u8 en_pll,
	153	u8 pll_src, u8 pll_range, u8 clock_gpio3, u16 pll_prediv,
	154	u16 pll_loopdiv, u16 free_div, u16 dsuScaler)
	155	{
	156	u8 b[10];
	157	b[0] = REQUEST_SET_CLOCK;
	158	b[1] = (en_pll << 7) \| (pll_src << 6) \| (pll_range << 5) \| (clock_gpio3 << 4);
	159	b[2] = (pll_prediv >> 8) & 0xff; // MSB
	160	b[3] = pll_prediv & 0xff; // LSB
	161	b[4] = (pll_loopdiv >> 8) & 0xff; // MSB
	162	b[5] = pll_loopdiv & 0xff; // LSB
	163	b[6] = (free_div >> 8) & 0xff; // MSB
	164	b[7] = free_div & 0xff; // LSB
	165	b[8] = (dsuScaler >> 8) & 0xff; // MSB
	166	b[9] = dsuScaler & 0xff; // LSB
	167
	168	return dib0700_ctrl_wr(d, b, 10);
	169	}
	170
	171	int dib0700_ctrl_clock(struct dvb_usb_device *d, u32 clk_MHz, u8 clock_out_gp3)
	172	{
	173	switch (clk_MHz) {
	174	case 72: dib0700_set_clock(d, 1, 0, 1, clock_out_gp3, 2, 24, 0, 0x4c); break;
	175	default: return -EINVAL;
	176	}
	177	return 0;
	178	}
	179
b7f54910 PB	180	static int dib0700_jumpram(struct usb_device *udev, u32 address)
	181	{
	182	int ret, actlen;
	183	u8 buf[8] = { REQUEST_JUMPRAM, 0, 0, 0,
	184	(address >> 24) & 0xff,
	185	(address >> 16) & 0xff,
	186	(address >> 8) & 0xff,
	187	address & 0xff };
	188
	189	if ((ret = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 0x01),buf,8,&actlen,1000)) < 0) {
	190	deb_fw("jumpram to 0x%x failed\n",address);
	191	return ret;
	192	}
	193	if (actlen != 8) {
	194	deb_fw("jumpram to 0x%x failed\n",address);
	195	return -EIO;
	196	}
	197	return 0;
	198	}
	199
	200	int dib0700_download_firmware(struct usb_device udev, const struct firmware fw)
	201	{
	202	struct hexline hx;
	203	int pos = 0, ret, act_len;
	204
	205	u8 buf[260];
	206
	207	while ((ret = dvb_usb_get_hexline(fw, &hx, &pos)) > 0) {
5bc63607	208	deb_fwdata("writing to address 0x%08x (buffer: 0x%02x %02x)\n",hx.addr, hx.len, hx.chk);
b7f54910 PB	209
b7f54910 PB	210	buf[0] = hx.len;
5bc63607 PB	211	buf[1] = (hx.addr >> 8) & 0xff;
5bc63607 PB	212	buf[2] = hx.addr & 0xff;
b7f54910 PB	213	buf[3] = hx.type;
	214	memcpy(&buf[4],hx.data,hx.len);
	215	buf[4+hx.len] = hx.chk;
	216
	217	ret = usb_bulk_msg(udev,
	218	usb_sndbulkpipe(udev, 0x01),
	219	buf,
	220	hx.len + 5,
	221	&act_len,
	222	1000);
	223
	224	if (ret < 0) {
	225	err("firmware download failed at %d with %d",pos,ret);
	226	return ret;
	227	}
	228	}
	229
	230	if (ret == 0) {
	231	/* start the firmware */
6958effe	232	if ((ret = dib0700_jumpram(udev, 0x70000000)) == 0) {
b7f54910	233	info("firmware started successfully.");
a75763ff	234	msleep(500);
6958effe	235	}
b7f54910 PB	236	} else
	237	ret = -EIO;
	238
	239	return ret;
	240	}
	241
	242	int dib0700_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
	243	{
	244	struct dib0700_state *st = adap->dev->priv;
	245	u8 b[4];
	246
	247	b[0] = REQUEST_ENABLE_VIDEO;
a162abb0	248	b[1] = (onoff << 4) \| 0x00; /* this bit gives a kind of command, rather than enabling something or not */
b7f54910 PB	249	b[2] = (0x01 << 4); /* Master mode */
	250	b[3] = 0x00;
	251
	252	deb_info("modifying (%d) streaming state for %d\n", onoff, adap->id);
	253
	254	if (onoff)
	255	st->channel_state \|= 1 << adap->id;
	256	else
	257	st->channel_state &= ~(1 << adap->id);
	258
	259	b[2] \|= st->channel_state;
	260
b7f54910 PB	261	deb_info("data for streaming: %x %x\n",b[1],b[2]);
	262
	263	return dib0700_ctrl_wr(adap->dev, b, 4);
	264	}
	265
58e6f95e	266	int dib0700_rc_setup(struct dvb_usb_device *d)
89f4267d JG	267	{
	268	u8 rc_setup[3] = {REQUEST_SET_RC, dvb_usb_dib0700_ir_proto, 0};
	269	int i = dib0700_ctrl_wr(d, rc_setup, 3);
	270	if (i<0) {
	271	err("ir protocol setup failed");
	272	return -1;
	273	}
	274	return 0;
	275	}
	276
b7f54910 PB	277	static int dib0700_probe(struct usb_interface *intf,
	278	const struct usb_device_id *id)
	279	{
	280	int i;
89f4267d	281	struct dvb_usb_device *dev;
b7f54910 PB	282
b7f54910 PB	283	for (i = 0; i < dib0700_device_count; i++)
78e92006 JG	284	if (dvb_usb_device_init(intf, &dib0700_devices[i], THIS_MODULE,
78e92006 JG	285	&dev, adapter_nr) == 0)
89f4267d JG	286	{
89f4267d JG	287	dib0700_rc_setup(dev);
b7f54910	288	return 0;
89f4267d	289	}
b7f54910 PB	290
	291	return -ENODEV;
	292	}
	293
	294	static struct usb_driver dib0700_driver = {
	295	.name = "dvb_usb_dib0700",
	296	.probe = dib0700_probe,
	297	.disconnect = dvb_usb_device_exit,
	298	.id_table = dib0700_usb_id_table,
	299	};
	300
	301	/* module stuff */
	302	static int __init dib0700_module_init(void)
	303	{
	304	int result;
	305	info("loaded with support for %d different device-types", dib0700_device_count);
	306	if ((result = usb_register(&dib0700_driver))) {
	307	err("usb_register failed. Error number %d",result);
	308	return result;
	309	}
	310
	311	return 0;
	312	}
	313
	314	static void __exit dib0700_module_exit(void)
	315	{
	316	/* deregister this driver from the USB subsystem */
	317	usb_deregister(&dib0700_driver);
	318	}
	319
	320	module_init (dib0700_module_init);
	321	module_exit (dib0700_module_exit);
	322
	323	MODULE_AUTHOR("Patrick Boettcher <pboettcher@dibcom.fr>");
	324	MODULE_DESCRIPTION("Driver for devices based on DiBcom DiB0700 - USB bridge");
	325	MODULE_VERSION("1.0");
	326	MODULE_LICENSE("GPL");