[mirror_ubuntu-zesty-kernel.git] / drivers / media / dvb / dvb-usb / gp8psk.c

/* DVB USB compliant Linux driver for the
 *  - GENPIX 8pks/qpsk/DCII USB2.0 DVB-S module
 *
 * Copyright (C) 2006,2007 Alan Nisota (alannisota@gmail.com)
 * Copyright (C) 2006,2007 Genpix Electronics (genpix@genpix-electronics.com)
 *
 * Thanks to GENPIX for the sample code used to implement this module.
 *
 * This module is based off the vp7045 and vp702x modules
 *
 *	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.
 *
 * see Documentation/dvb/README.dvb-usb for more information
 */
#include "gp8psk.h"

/* debug */
static char bcm4500_firmware[] = "dvb-usb-gp8psk-02.fw";
int dvb_usb_gp8psk_debug;
module_param_named(debug,dvb_usb_gp8psk_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);

int gp8psk_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen)
{
	int ret = 0,try = 0;

	if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
		return ret;

	while (ret >= 0 && ret != blen && try < 3) {
		ret = usb_control_msg(d->udev,
			usb_rcvctrlpipe(d->udev,0),
			req,
			USB_TYPE_VENDOR | USB_DIR_IN,
			value,index,b,blen,
			2000);
		deb_info("reading number %d (ret: %d)\n",try,ret);
		try++;
	}

	if (ret < 0 || ret != blen) {
		warn("usb in %d operation failed.", req);
		ret = -EIO;
	} else
		ret = 0;

	deb_xfer("in: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
	debug_dump(b,blen,deb_xfer);

	mutex_unlock(&d->usb_mutex);

	return ret;
}

int gp8psk_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
			     u16 index, u8 *b, int blen)
{
	int ret;

	deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
	debug_dump(b,blen,deb_xfer);

	if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
		return ret;

	if (usb_control_msg(d->udev,
			usb_sndctrlpipe(d->udev,0),
			req,
			USB_TYPE_VENDOR | USB_DIR_OUT,
			value,index,b,blen,
			2000) != blen) {
		warn("usb out operation failed.");
		ret = -EIO;
	} else
		ret = 0;
	mutex_unlock(&d->usb_mutex);

	return ret;
}

static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d)
{
	int ret;
	const struct firmware *fw = NULL;
	u8 *ptr, *buf;
	if ((ret = request_firmware(&fw, bcm4500_firmware,
					&d->udev->dev)) != 0) {
		err("did not find the bcm4500 firmware file. (%s) "
			"Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)",
			bcm4500_firmware,ret);
		return ret;
	}

	ret = -EINVAL;

	if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0))
		goto out_rel_fw;

	info("downloading bcm4500 firmware from file '%s'",bcm4500_firmware);

	ptr = fw->data;
	buf = kmalloc(64, GFP_KERNEL | GFP_DMA);

	while (ptr[0] != 0xff) {
		u16 buflen = ptr[0] + 4;
		if (ptr + buflen >= fw->data + fw->size) {
			err("failed to load bcm4500 firmware.");
			goto out_free;
		}
		memcpy(buf, ptr, buflen);
		if (dvb_usb_generic_write(d, buf, buflen)) {
			err("failed to load bcm4500 firmware.");
			goto out_free;
		}
		ptr += buflen;
	}

	ret = 0;

out_free:
	kfree(buf);
out_rel_fw:
	release_firmware(fw);

	return ret;
}

static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff)
{
	u8 status, buf;
	int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);

	if (onoff) {
		gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1);
		if (! (status & bm8pskStarted)) {  /* started */
			if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
				gp8psk_usb_out_op(d, CW3K_INIT, 1, 0, NULL, 0);
			if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
				return -EINVAL;
		}

		if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
			if (! (status & bm8pskFW_Loaded)) /* BCM4500 firmware loaded */
				if(gp8psk_load_bcm4500fw(d))
					return EINVAL;

		if (! (status & bmIntersilOn)) /* LNB Power */
			if (gp8psk_usb_in_op(d, START_INTERSIL, 1, 0,
					&buf, 1))
				return EINVAL;

		/* Set DVB mode to 1 */
		if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
			if (gp8psk_usb_out_op(d, SET_DVB_MODE, 1, 0, NULL, 0))
				return EINVAL;
		/* Abort possible TS (if previous tune crashed) */
		if (gp8psk_usb_out_op(d, ARM_TRANSFER, 0, 0, NULL, 0))
			return EINVAL;
	} else {
		/* Turn off LNB power */
		if (gp8psk_usb_in_op(d, START_INTERSIL, 0, 0, &buf, 1))
			return EINVAL;
		/* Turn off 8psk power */
		if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
			return -EINVAL;
		if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
			gp8psk_usb_out_op(d, CW3K_INIT, 0, 0, NULL, 0);
	}
	return 0;
}

int gp8psk_bcm4500_reload(struct dvb_usb_device *d)
{
	u8 buf;
	int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);
	/* Turn off 8psk power */
	if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
		return -EINVAL;
	/* Turn On 8psk power */
	if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
		return -EINVAL;
	/* load BCM4500 firmware */
	if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
		if (gp8psk_load_bcm4500fw(d))
			return EINVAL;
	return 0;
}

static int gp8psk_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
{
	return gp8psk_usb_out_op(adap->dev, ARM_TRANSFER, onoff, 0 , NULL, 0);
}

static int gp8psk_frontend_attach(struct dvb_usb_adapter *adap)
{
	adap->fe = gp8psk_fe_attach(adap->dev);
	return 0;
}

static struct dvb_usb_device_properties gp8psk_properties;

static int gp8psk_usb_probe(struct usb_interface *intf,
		const struct usb_device_id *id)
{
	int ret;
	struct usb_device *udev = interface_to_usbdev(intf);
	ret =  dvb_usb_device_init(intf,&gp8psk_properties,THIS_MODULE,NULL);
	if (ret == 0) {
		info("found Genpix USB device pID = %x (hex)",
			le16_to_cpu(udev->descriptor.idProduct));
	}
	return ret;
}

static struct usb_device_id gp8psk_usb_table [] = {
	    { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_COLD) },
	    { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_WARM) },
	    { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_2) },
	    { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_1) },
	    { USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_CW3K) },
	    { 0 },
};
MODULE_DEVICE_TABLE(usb, gp8psk_usb_table);

static struct dvb_usb_device_properties gp8psk_properties = {
	.usb_ctrl = CYPRESS_FX2,
	.firmware = "dvb-usb-gp8psk-01.fw",

	.num_adapters = 1,
	.adapter = {
		{
			.streaming_ctrl   = gp8psk_streaming_ctrl,
			.frontend_attach  = gp8psk_frontend_attach,
			/* parameter for the MPEG2-data transfer */
			.stream = {
				.type = USB_BULK,
				.count = 7,
				.endpoint = 0x82,
				.u = {
					.bulk = {
						.buffersize = 8192,
					}
				}
			},
		}
	},
	.power_ctrl       = gp8psk_power_ctrl,

	.generic_bulk_ctrl_endpoint = 0x01,

	.num_device_descs = 4,
	.devices = {
		{ .name = "Genpix 8PSK-to-USB2 Rev.1 DVB-S receiver",
		  .cold_ids = { &gp8psk_usb_table[0], NULL },
		  .warm_ids = { &gp8psk_usb_table[1], NULL },
		},
		{ .name = "Genpix 8PSK-to-USB2 Rev.2 DVB-S receiver",
		  .cold_ids = { NULL },
		  .warm_ids = { &gp8psk_usb_table[2], NULL },
		},
		{ .name = "Genpix SkyWalker-1 DVB-S receiver",
		  .cold_ids = { NULL },
		  .warm_ids = { &gp8psk_usb_table[3], NULL },
		},
		{ .name = "Genpix SkyWalker-CW3K DVB-S receiver",
		  .cold_ids = { NULL },
		  .warm_ids = { &gp8psk_usb_table[4], NULL },
		},
		{ NULL },
	}
};

/* usb specific object needed to register this driver with the usb subsystem */
static struct usb_driver gp8psk_usb_driver = {
	.name		= "dvb_usb_gp8psk",
	.probe		= gp8psk_usb_probe,
	.disconnect = dvb_usb_device_exit,
	.id_table	= gp8psk_usb_table,
};

/* module stuff */
static int __init gp8psk_usb_module_init(void)
{
	int result;
	if ((result = usb_register(&gp8psk_usb_driver))) {
		err("usb_register failed. (%d)",result);
		return result;
	}

	return 0;
}

static void __exit gp8psk_usb_module_exit(void)
{
	/* deregister this driver from the USB subsystem */
	usb_deregister(&gp8psk_usb_driver);
}

module_init(gp8psk_usb_module_init);
module_exit(gp8psk_usb_module_exit);

MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>");
MODULE_DESCRIPTION("Driver for Genpix 8psk-to-USB2 DVB-S");
MODULE_VERSION("1.1");
MODULE_LICENSE("GPL");
Commit	Line	Data
9bbe076f	1	/* DVB USB compliant Linux driver for the
458b634c	2	* - GENPIX 8pks/qpsk/DCII USB2.0 DVB-S module
9bbe076f	3	*
458b634c AN	4	* Copyright (C) 2006,2007 Alan Nisota (alannisota@gmail.com)
458b634c AN	5	* Copyright (C) 2006,2007 Genpix Electronics (genpix@genpix-electronics.com)
9bbe076f AN	6	*
	7	* Thanks to GENPIX for the sample code used to implement this module.
	8	*
	9	* This module is based off the vp7045 and vp702x modules
	10	*
	11	* This program is free software; you can redistribute it and/or modify it
	12	* under the terms of the GNU General Public License as published by the Free
	13	* Software Foundation, version 2.
	14	*
	15	* see Documentation/dvb/README.dvb-usb for more information
	16	*/
	17	#include "gp8psk.h"
	18
	19	/* debug */
	20	static char bcm4500_firmware[] = "dvb-usb-gp8psk-02.fw";
	21	int dvb_usb_gp8psk_debug;
	22	module_param_named(debug,dvb_usb_gp8psk_debug, int, 0644);
	23	MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
	24
	25	int gp8psk_usb_in_op(struct dvb_usb_device d, u8 req, u16 value, u16 index, u8 b, int blen)
	26	{
	27	int ret = 0,try = 0;
	28
	29	if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
	30	return ret;
	31
	32	while (ret >= 0 && ret != blen && try < 3) {
	33	ret = usb_control_msg(d->udev,
	34	usb_rcvctrlpipe(d->udev,0),
	35	req,
	36	USB_TYPE_VENDOR \| USB_DIR_IN,
	37	value,index,b,blen,
	38	2000);
	39	deb_info("reading number %d (ret: %d)\n",try,ret);
	40	try++;
	41	}
	42
	43	if (ret < 0 \|\| ret != blen) {
458b634c	44	warn("usb in %d operation failed.", req);
9bbe076f AN	45	ret = -EIO;
	46	} else
	47	ret = 0;
	48
	49	deb_xfer("in: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
	50	debug_dump(b,blen,deb_xfer);
	51
	52	mutex_unlock(&d->usb_mutex);
	53
	54	return ret;
	55	}
	56
	57	int gp8psk_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
	58	u16 index, u8 *b, int blen)
	59	{
	60	int ret;
	61
	62	deb_xfer("out: req. %x, val: %x, ind: %x, buffer: ",req,value,index);
	63	debug_dump(b,blen,deb_xfer);
	64
	65	if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
	66	return ret;
	67
	68	if (usb_control_msg(d->udev,
	69	usb_sndctrlpipe(d->udev,0),
	70	req,
	71	USB_TYPE_VENDOR \| USB_DIR_OUT,
	72	value,index,b,blen,
	73	2000) != blen) {
	74	warn("usb out operation failed.");
	75	ret = -EIO;
	76	} else
	77	ret = 0;
	78	mutex_unlock(&d->usb_mutex);
	79
	80	return ret;
	81	}
	82
	83	static int gp8psk_load_bcm4500fw(struct dvb_usb_device *d)
	84	{
	85	int ret;
	86	const struct firmware *fw = NULL;
	87	u8 ptr, buf;
	88	if ((ret = request_firmware(&fw, bcm4500_firmware,
	89	&d->udev->dev)) != 0) {
	90	err("did not find the bcm4500 firmware file. (%s) "
	91	"Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)",
	92	bcm4500_firmware,ret);
	93	return ret;
	94	}
	95
976e3483 PB	96	ret = -EINVAL;
	97
	98	if (gp8psk_usb_out_op(d, LOAD_BCM4500,1,0,NULL, 0))
	99	goto out_rel_fw;
9bbe076f	100
458b634c	101	info("downloading bcm4500 firmware from file '%s'",bcm4500_firmware);
9bbe076f AN	102
9bbe076f AN	103	ptr = fw->data;
458b634c	104	buf = kmalloc(64, GFP_KERNEL \| GFP_DMA);
9bbe076f AN	105
	106	while (ptr[0] != 0xff) {
	107	u16 buflen = ptr[0] + 4;
	108	if (ptr + buflen >= fw->data + fw->size) {
	109	err("failed to load bcm4500 firmware.");
976e3483	110	goto out_free;
9bbe076f AN	111	}
	112	memcpy(buf, ptr, buflen);
	113	if (dvb_usb_generic_write(d, buf, buflen)) {
	114	err("failed to load bcm4500 firmware.");
976e3483	115	goto out_free;
9bbe076f AN	116	}
	117	ptr += buflen;
	118	}
976e3483 PB	119
	120	ret = 0;
	121
	122	out_free:
9bbe076f	123	kfree(buf);
976e3483 PB	124	out_rel_fw:
	125	release_firmware(fw);
	126
	127	return ret;
9bbe076f AN	128	}
	129
	130	static int gp8psk_power_ctrl(struct dvb_usb_device *d, int onoff)
	131	{
	132	u8 status, buf;
458b634c AN	133	int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);
458b634c AN	134
9bbe076f AN	135	if (onoff) {
9bbe076f AN	136	gp8psk_usb_in_op(d, GET_8PSK_CONFIG,0,0,&status,1);
458b634c AN	137	if (! (status & bm8pskStarted)) { /* started */
	138	if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
	139	gp8psk_usb_out_op(d, CW3K_INIT, 1, 0, NULL, 0);
9bbe076f AN	140	if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
9bbe076f AN	141	return -EINVAL;
458b634c	142	}
9bbe076f	143
458b634c AN	144	if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
	145	if (! (status & bm8pskFW_Loaded)) /* BCM4500 firmware loaded */
	146	if(gp8psk_load_bcm4500fw(d))
	147	return EINVAL;
9bbe076f	148
458b634c	149	if (! (status & bmIntersilOn)) /* LNB Power */
9bbe076f AN	150	if (gp8psk_usb_in_op(d, START_INTERSIL, 1, 0,
	151	&buf, 1))
	152	return EINVAL;
	153
458b634c AN	154	/* Set DVB mode to 1 */
	155	if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
	156	if (gp8psk_usb_out_op(d, SET_DVB_MODE, 1, 0, NULL, 0))
	157	return EINVAL;
	158	/* Abort possible TS (if previous tune crashed) */
	159	if (gp8psk_usb_out_op(d, ARM_TRANSFER, 0, 0, NULL, 0))
	160	return EINVAL;
9bbe076f AN	161	} else {
	162	/* Turn off LNB power */
	163	if (gp8psk_usb_in_op(d, START_INTERSIL, 0, 0, &buf, 1))
	164	return EINVAL;
	165	/* Turn off 8psk power */
	166	if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
	167	return -EINVAL;
458b634c AN	168	if(gp_product_id == USB_PID_GENPIX_SKYWALKER_CW3K)
458b634c AN	169	gp8psk_usb_out_op(d, CW3K_INIT, 0, 0, NULL, 0);
9bbe076f AN	170	}
	171	return 0;
	172	}
	173
458b634c AN	174	int gp8psk_bcm4500_reload(struct dvb_usb_device *d)
	175	{
	176	u8 buf;
	177	int gp_product_id = le16_to_cpu(d->udev->descriptor.idProduct);
	178	/* Turn off 8psk power */
	179	if (gp8psk_usb_in_op(d, BOOT_8PSK, 0, 0, &buf, 1))
	180	return -EINVAL;
	181	/* Turn On 8psk power */
	182	if (gp8psk_usb_in_op(d, BOOT_8PSK, 1, 0, &buf, 1))
	183	return -EINVAL;
	184	/* load BCM4500 firmware */
	185	if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM)
	186	if (gp8psk_load_bcm4500fw(d))
	187	return EINVAL;
	188	return 0;
	189	}
9bbe076f	190
4d43e13f	191	static int gp8psk_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
9bbe076f	192	{
4d43e13f	193	return gp8psk_usb_out_op(adap->dev, ARM_TRANSFER, onoff, 0 , NULL, 0);
9bbe076f AN	194	}
9bbe076f AN	195
4d43e13f	196	static int gp8psk_frontend_attach(struct dvb_usb_adapter *adap)
9bbe076f	197	{
4d43e13f	198	adap->fe = gp8psk_fe_attach(adap->dev);
9bbe076f AN	199	return 0;
	200	}
	201
4d43e13f	202	static struct dvb_usb_device_properties gp8psk_properties;
9bbe076f AN	203
	204	static int gp8psk_usb_probe(struct usb_interface *intf,
	205	const struct usb_device_id *id)
	206	{
458b634c AN	207	int ret;
	208	struct usb_device *udev = interface_to_usbdev(intf);
	209	ret = dvb_usb_device_init(intf,&gp8psk_properties,THIS_MODULE,NULL);
	210	if (ret == 0) {
	211	info("found Genpix USB device pID = %x (hex)",
	212	le16_to_cpu(udev->descriptor.idProduct));
	213	}
	214	return ret;
9bbe076f AN	215	}
	216
	217	static struct usb_device_id gp8psk_usb_table [] = {
458b634c AN	218	{ USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_COLD) },
	219	{ USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_1_WARM) },
	220	{ USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_8PSK_REV_2) },
	221	{ USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_1) },
	222	{ USB_DEVICE(USB_VID_GENPIX, USB_PID_GENPIX_SKYWALKER_CW3K) },
9bbe076f AN	223	{ 0 },
	224	};
	225	MODULE_DEVICE_TABLE(usb, gp8psk_usb_table);
	226
4d43e13f	227	static struct dvb_usb_device_properties gp8psk_properties = {
9bbe076f AN	228	.usb_ctrl = CYPRESS_FX2,
	229	.firmware = "dvb-usb-gp8psk-01.fw",
	230
4d43e13f PB	231	.num_adapters = 1,
	232	.adapter = {
	233	{
01451e72 PB	234	.streaming_ctrl = gp8psk_streaming_ctrl,
	235	.frontend_attach = gp8psk_frontend_attach,
	236	/* parameter for the MPEG2-data transfer */
4d43e13f PB	237	.stream = {
4d43e13f PB	238	.type = USB_BULK,
01451e72 PB	239	.count = 7,
	240	.endpoint = 0x82,
	241	.u = {
	242	.bulk = {
	243	.buffersize = 8192,
	244	}
	245	}
	246	},
4d43e13f PB	247	}
	248	},
	249	.power_ctrl = gp8psk_power_ctrl,
	250
	251	.generic_bulk_ctrl_endpoint = 0x01,
9bbe076f	252
458b634c	253	.num_device_descs = 4,
9bbe076f	254	.devices = {
458b634c	255	{ .name = "Genpix 8PSK-to-USB2 Rev.1 DVB-S receiver",
9bbe076f AN	256	.cold_ids = { &gp8psk_usb_table[0], NULL },
	257	.warm_ids = { &gp8psk_usb_table[1], NULL },
	258	},
458b634c AN	259	{ .name = "Genpix 8PSK-to-USB2 Rev.2 DVB-S receiver",
	260	.cold_ids = { NULL },
	261	.warm_ids = { &gp8psk_usb_table[2], NULL },
	262	},
	263	{ .name = "Genpix SkyWalker-1 DVB-S receiver",
	264	.cold_ids = { NULL },
	265	.warm_ids = { &gp8psk_usb_table[3], NULL },
	266	},
	267	{ .name = "Genpix SkyWalker-CW3K DVB-S receiver",
	268	.cold_ids = { NULL },
	269	.warm_ids = { &gp8psk_usb_table[4], NULL },
	270	},
ab9caf9e	271	{ NULL },
9bbe076f AN	272	}
	273	};
	274
	275	/* usb specific object needed to register this driver with the usb subsystem */
	276	static struct usb_driver gp8psk_usb_driver = {
	277	.name = "dvb_usb_gp8psk",
	278	.probe = gp8psk_usb_probe,
	279	.disconnect = dvb_usb_device_exit,
	280	.id_table = gp8psk_usb_table,
	281	};
	282
	283	/* module stuff */
	284	static int __init gp8psk_usb_module_init(void)
	285	{
	286	int result;
	287	if ((result = usb_register(&gp8psk_usb_driver))) {
	288	err("usb_register failed. (%d)",result);
	289	return result;
	290	}
	291
	292	return 0;
	293	}
	294
	295	static void __exit gp8psk_usb_module_exit(void)
	296	{
	297	/* deregister this driver from the USB subsystem */
	298	usb_deregister(&gp8psk_usb_driver);
	299	}
	300
	301	module_init(gp8psk_usb_module_init);
	302	module_exit(gp8psk_usb_module_exit);
	303
	304	MODULE_AUTHOR("Alan Nisota <alannisota@gamil.com>");
458b634c AN	305	MODULE_DESCRIPTION("Driver for Genpix 8psk-to-USB2 DVB-S");
458b634c AN	306	MODULE_VERSION("1.1");
9bbe076f	307	MODULE_LICENSE("GPL");