[deliverable/linux.git] / drivers / usb / serial / f81232.c

/*
 * Fintek F81232 USB to serial adaptor driver
 *
 * Copyright (C) 2012 Greg Kroah-Hartman (gregkh@linuxfoundation.org)
 * Copyright (C) 2012 Linux Foundation
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 *
 */

#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/tty_flip.h>
#include <linux/serial.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/spinlock.h>
#include <linux/uaccess.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>

static const struct usb_device_id id_table[] = {
	{ USB_DEVICE(0x1934, 0x0706) },
	{ }					/* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, id_table);

#define CONTROL_DTR			0x01
#define CONTROL_RTS			0x02

#define UART_STATE			0x08
#define UART_STATE_TRANSIENT_MASK	0x74
#define UART_DCD			0x01
#define UART_DSR			0x02
#define UART_BREAK_ERROR		0x04
#define UART_RING			0x08
#define UART_FRAME_ERROR		0x10
#define UART_PARITY_ERROR		0x20
#define UART_OVERRUN_ERROR		0x40
#define UART_CTS			0x80

struct f81232_private {
	spinlock_t lock;
	wait_queue_head_t delta_msr_wait;
	u8 line_control;
	u8 line_status;
};

static void f81232_update_line_status(struct usb_serial_port *port,
				      unsigned char *data,
				      unsigned int actual_length)
{
}

static void f81232_read_int_callback(struct urb *urb)
{
	struct usb_serial_port *port =  urb->context;
	unsigned char *data = urb->transfer_buffer;
	unsigned int actual_length = urb->actual_length;
	int status = urb->status;
	int retval;

	switch (status) {
	case 0:
		/* success */
		break;
	case -ECONNRESET:
	case -ENOENT:
	case -ESHUTDOWN:
		/* this urb is terminated, clean up */
		dev_dbg(&port->dev, "%s - urb shutting down with status: %d\n",
			__func__, status);
		return;
	default:
		dev_dbg(&port->dev, "%s - nonzero urb status received: %d\n",
			__func__, status);
		goto exit;
	}

	usb_serial_debug_data(&port->dev, __func__,
			      urb->actual_length, urb->transfer_buffer);

	f81232_update_line_status(port, data, actual_length);

exit:
	retval = usb_submit_urb(urb, GFP_ATOMIC);
	if (retval)
		dev_err(&urb->dev->dev,
			"%s - usb_submit_urb failed with result %d\n",
			__func__, retval);
}

static void f81232_process_read_urb(struct urb *urb)
{
	struct usb_serial_port *port = urb->context;
	struct f81232_private *priv = usb_get_serial_port_data(port);
	struct tty_struct *tty;
	unsigned char *data = urb->transfer_buffer;
	char tty_flag = TTY_NORMAL;
	unsigned long flags;
	u8 line_status;
	int i;

	/* update line status */
	spin_lock_irqsave(&priv->lock, flags);
	line_status = priv->line_status;
	priv->line_status &= ~UART_STATE_TRANSIENT_MASK;
	spin_unlock_irqrestore(&priv->lock, flags);
	wake_up_interruptible(&priv->delta_msr_wait);

	if (!urb->actual_length)
		return;

	tty = tty_port_tty_get(&port->port);
	if (!tty)
		return;

	/* break takes precedence over parity, */
	/* which takes precedence over framing errors */
	if (line_status & UART_BREAK_ERROR)
		tty_flag = TTY_BREAK;
	else if (line_status & UART_PARITY_ERROR)
		tty_flag = TTY_PARITY;
	else if (line_status & UART_FRAME_ERROR)
		tty_flag = TTY_FRAME;
	dev_dbg(&port->dev, "%s - tty_flag = %d\n", __func__, tty_flag);

	/* overrun is special, not associated with a char */
	if (line_status & UART_OVERRUN_ERROR)
		tty_insert_flip_char(tty, 0, TTY_OVERRUN);

	if (port->port.console && port->sysrq) {
		for (i = 0; i < urb->actual_length; ++i)
			if (!usb_serial_handle_sysrq_char(port, data[i]))
				tty_insert_flip_char(tty, data[i], tty_flag);
	} else {
		tty_insert_flip_string_fixed_flag(tty, data, tty_flag,
							urb->actual_length);
	}

	tty_flip_buffer_push(tty);
	tty_kref_put(tty);
}

static int set_control_lines(struct usb_device *dev, u8 value)
{
	/* FIXME - Stubbed out for now */
	return 0;
}

static void f81232_break_ctl(struct tty_struct *tty, int break_state)
{
	/* FIXME - Stubbed out for now */

	/*
	 * break_state = -1 to turn on break, and 0 to turn off break
	 * see drivers/char/tty_io.c to see it used.
	 * last_set_data_urb_value NEVER has the break bit set in it.
	 */
}

static void f81232_set_termios(struct tty_struct *tty,
		struct usb_serial_port *port, struct ktermios *old_termios)
{
	/* FIXME - Stubbed out for now */

	/* Don't change anything if nothing has changed */
	if (!tty_termios_hw_change(&tty->termios, old_termios))
		return;

	/* Do the real work here... */
	tty_termios_copy_hw(&tty->termios, old_termios);
}

static int f81232_tiocmget(struct tty_struct *tty)
{
	/* FIXME - Stubbed out for now */
	return 0;
}

static int f81232_tiocmset(struct tty_struct *tty,
			unsigned int set, unsigned int clear)
{
	/* FIXME - Stubbed out for now */
	return 0;
}

static int f81232_open(struct tty_struct *tty, struct usb_serial_port *port)
{
	struct ktermios tmp_termios;
	int result;

	/* Setup termios */
	if (tty)
		f81232_set_termios(tty, port, &tmp_termios);

	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
	if (result) {
		dev_err(&port->dev, "%s - failed submitting interrupt urb,"
			" error %d\n", __func__, result);
		return result;
	}

	result = usb_serial_generic_open(tty, port);
	if (result) {
		usb_kill_urb(port->interrupt_in_urb);
		return result;
	}

	port->port.drain_delay = 256;
	return 0;
}

static void f81232_close(struct usb_serial_port *port)
{
	usb_serial_generic_close(port);
	usb_kill_urb(port->interrupt_in_urb);
}

static void f81232_dtr_rts(struct usb_serial_port *port, int on)
{
	struct f81232_private *priv = usb_get_serial_port_data(port);
	unsigned long flags;
	u8 control;

	spin_lock_irqsave(&priv->lock, flags);
	/* Change DTR and RTS */
	if (on)
		priv->line_control |= (CONTROL_DTR | CONTROL_RTS);
	else
		priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS);
	control = priv->line_control;
	spin_unlock_irqrestore(&priv->lock, flags);
	set_control_lines(port->serial->dev, control);
}

static int f81232_carrier_raised(struct usb_serial_port *port)
{
	struct f81232_private *priv = usb_get_serial_port_data(port);
	if (priv->line_status & UART_DCD)
		return 1;
	return 0;
}

static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
{
	struct f81232_private *priv = usb_get_serial_port_data(port);
	unsigned long flags;
	unsigned int prevstatus;
	unsigned int status;
	unsigned int changed;

	spin_lock_irqsave(&priv->lock, flags);
	prevstatus = priv->line_status;
	spin_unlock_irqrestore(&priv->lock, flags);

	while (1) {
		interruptible_sleep_on(&priv->delta_msr_wait);
		/* see if a signal did it */
		if (signal_pending(current))
			return -ERESTARTSYS;

		spin_lock_irqsave(&priv->lock, flags);
		status = priv->line_status;
		spin_unlock_irqrestore(&priv->lock, flags);

		changed = prevstatus ^ status;

		if (((arg & TIOCM_RNG) && (changed & UART_RING)) ||
		    ((arg & TIOCM_DSR) && (changed & UART_DSR)) ||
		    ((arg & TIOCM_CD)  && (changed & UART_DCD)) ||
		    ((arg & TIOCM_CTS) && (changed & UART_CTS))) {
			return 0;
		}
		prevstatus = status;
	}
	/* NOTREACHED */
	return 0;
}

static int f81232_ioctl(struct tty_struct *tty,
			unsigned int cmd, unsigned long arg)
{
	struct serial_struct ser;
	struct usb_serial_port *port = tty->driver_data;

	dev_dbg(&port->dev, "%s (%d) cmd = 0x%04x\n", __func__,
		port->number, cmd);

	switch (cmd) {
	case TIOCGSERIAL:
		memset(&ser, 0, sizeof ser);
		ser.type = PORT_16654;
		ser.line = port->serial->minor;
		ser.port = port->number;
		ser.baud_base = 460800;

		if (copy_to_user((void __user *)arg, &ser, sizeof ser))
			return -EFAULT;

		return 0;

	case TIOCMIWAIT:
		dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__,
			port->number);
		return wait_modem_info(port, arg);
	default:
		dev_dbg(&port->dev, "%s not supported = 0x%04x\n",
			__func__, cmd);
		break;
	}
	return -ENOIOCTLCMD;
}

static int f81232_startup(struct usb_serial *serial)
{
	struct f81232_private *priv;
	int i;

	for (i = 0; i < serial->num_ports; ++i) {
		priv = kzalloc(sizeof(struct f81232_private), GFP_KERNEL);
		if (!priv)
			goto cleanup;
		spin_lock_init(&priv->lock);
		init_waitqueue_head(&priv->delta_msr_wait);
		usb_set_serial_port_data(serial->port[i], priv);
	}
	return 0;

cleanup:
	for (--i; i >= 0; --i) {
		priv = usb_get_serial_port_data(serial->port[i]);
		kfree(priv);
		usb_set_serial_port_data(serial->port[i], NULL);
	}
	return -ENOMEM;
}

static void f81232_release(struct usb_serial *serial)
{
	int i;
	struct f81232_private *priv;

	for (i = 0; i < serial->num_ports; ++i) {
		priv = usb_get_serial_port_data(serial->port[i]);
		kfree(priv);
	}
}

static struct usb_serial_driver f81232_device = {
	.driver = {
		.owner =	THIS_MODULE,
		.name =		"f81232",
	},
	.id_table =		id_table,
	.num_ports =		1,
	.bulk_in_size =		256,
	.bulk_out_size =	256,
	.open =			f81232_open,
	.close =		f81232_close,
	.dtr_rts = 		f81232_dtr_rts,
	.carrier_raised =	f81232_carrier_raised,
	.ioctl =		f81232_ioctl,
	.break_ctl =		f81232_break_ctl,
	.set_termios =		f81232_set_termios,
	.tiocmget =		f81232_tiocmget,
	.tiocmset =		f81232_tiocmset,
	.process_read_urb =	f81232_process_read_urb,
	.read_int_callback =	f81232_read_int_callback,
	.attach =		f81232_startup,
	.release =		f81232_release,
};

static struct usb_serial_driver * const serial_drivers[] = {
	&f81232_device,
	NULL,
};

module_usb_serial_driver(serial_drivers, id_table);

MODULE_DESCRIPTION("Fintek F81232 USB to serial adaptor driver");
MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@linuxfoundation.org");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
aac1fc38 GKH	1	/*
	2	* Fintek F81232 USB to serial adaptor driver
	3	*
	4	* Copyright (C) 2012 Greg Kroah-Hartman (gregkh@linuxfoundation.org)
	5	* Copyright (C) 2012 Linux Foundation
	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License version 2 as published by
	9	* the Free Software Foundation.
	10	*
	11	*/
	12
	13	#include <linux/kernel.h>
	14	#include <linux/errno.h>
	15	#include <linux/init.h>
	16	#include <linux/slab.h>
	17	#include <linux/tty.h>
	18	#include <linux/tty_driver.h>
	19	#include <linux/tty_flip.h>
	20	#include <linux/serial.h>
	21	#include <linux/module.h>
	22	#include <linux/moduleparam.h>
	23	#include <linux/spinlock.h>
	24	#include <linux/uaccess.h>
	25	#include <linux/usb.h>
	26	#include <linux/usb/serial.h>
	27
aac1fc38 GKH	28	static const struct usb_device_id id_table[] = {
	29	{ USB_DEVICE(0x1934, 0x0706) },
	30	{ } /* Terminating entry */
	31	};
	32	MODULE_DEVICE_TABLE(usb, id_table);
	33
	34	#define CONTROL_DTR 0x01
	35	#define CONTROL_RTS 0x02
	36
	37	#define UART_STATE 0x08
	38	#define UART_STATE_TRANSIENT_MASK 0x74
	39	#define UART_DCD 0x01
	40	#define UART_DSR 0x02
	41	#define UART_BREAK_ERROR 0x04
	42	#define UART_RING 0x08
	43	#define UART_FRAME_ERROR 0x10
	44	#define UART_PARITY_ERROR 0x20
	45	#define UART_OVERRUN_ERROR 0x40
	46	#define UART_CTS 0x80
	47
	48	struct f81232_private {
	49	spinlock_t lock;
	50	wait_queue_head_t delta_msr_wait;
	51	u8 line_control;
	52	u8 line_status;
	53	};
	54
	55	static void f81232_update_line_status(struct usb_serial_port *port,
	56	unsigned char *data,
	57	unsigned int actual_length)
	58	{
	59	}
	60
	61	static void f81232_read_int_callback(struct urb *urb)
	62	{
	63	struct usb_serial_port *port = urb->context;
	64	unsigned char *data = urb->transfer_buffer;
	65	unsigned int actual_length = urb->actual_length;
	66	int status = urb->status;
	67	int retval;
	68
aac1fc38 GKH	69	switch (status) {
	70	case 0:
	71	/* success */
	72	break;
	73	case -ECONNRESET:
	74	case -ENOENT:
	75	case -ESHUTDOWN:
	76	/* this urb is terminated, clean up */
a94e9b94 GKH	77	dev_dbg(&port->dev, "%s - urb shutting down with status: %d\n",
a94e9b94 GKH	78	__func__, status);
aac1fc38 GKH	79	return;
aac1fc38 GKH	80	default:
a94e9b94 GKH	81	dev_dbg(&port->dev, "%s - nonzero urb status received: %d\n",
a94e9b94 GKH	82	__func__, status);
aac1fc38 GKH	83	goto exit;
	84	}
	85
59d33f2f	86	usb_serial_debug_data(&port->dev, __func__,
aac1fc38 GKH	87	urb->actual_length, urb->transfer_buffer);
	88
	89	f81232_update_line_status(port, data, actual_length);
	90
	91	exit:
	92	retval = usb_submit_urb(urb, GFP_ATOMIC);
	93	if (retval)
	94	dev_err(&urb->dev->dev,
	95	"%s - usb_submit_urb failed with result %d\n",
	96	__func__, retval);
	97	}
	98
	99	static void f81232_process_read_urb(struct urb *urb)
	100	{
	101	struct usb_serial_port *port = urb->context;
	102	struct f81232_private *priv = usb_get_serial_port_data(port);
	103	struct tty_struct *tty;
	104	unsigned char *data = urb->transfer_buffer;
	105	char tty_flag = TTY_NORMAL;
	106	unsigned long flags;
	107	u8 line_status;
	108	int i;
	109
	110	/* update line status */
	111	spin_lock_irqsave(&priv->lock, flags);
	112	line_status = priv->line_status;
	113	priv->line_status &= ~UART_STATE_TRANSIENT_MASK;
	114	spin_unlock_irqrestore(&priv->lock, flags);
	115	wake_up_interruptible(&priv->delta_msr_wait);
	116
	117	if (!urb->actual_length)
	118	return;
	119
	120	tty = tty_port_tty_get(&port->port);
	121	if (!tty)
	122	return;
	123
	124	/* break takes precedence over parity, */
	125	/* which takes precedence over framing errors */
	126	if (line_status & UART_BREAK_ERROR)
	127	tty_flag = TTY_BREAK;
	128	else if (line_status & UART_PARITY_ERROR)
	129	tty_flag = TTY_PARITY;
	130	else if (line_status & UART_FRAME_ERROR)
	131	tty_flag = TTY_FRAME;
a94e9b94	132	dev_dbg(&port->dev, "%s - tty_flag = %d\n", __func__, tty_flag);
aac1fc38 GKH	133
	134	/* overrun is special, not associated with a char */
	135	if (line_status & UART_OVERRUN_ERROR)
	136	tty_insert_flip_char(tty, 0, TTY_OVERRUN);
	137
	138	if (port->port.console && port->sysrq) {
	139	for (i = 0; i < urb->actual_length; ++i)
	140	if (!usb_serial_handle_sysrq_char(port, data[i]))
	141	tty_insert_flip_char(tty, data[i], tty_flag);
	142	} else {
	143	tty_insert_flip_string_fixed_flag(tty, data, tty_flag,
	144	urb->actual_length);
	145	}
	146
	147	tty_flip_buffer_push(tty);
	148	tty_kref_put(tty);
	149	}
	150
	151	static int set_control_lines(struct usb_device *dev, u8 value)
	152	{
	153	/* FIXME - Stubbed out for now */
	154	return 0;
	155	}
	156
	157	static void f81232_break_ctl(struct tty_struct *tty, int break_state)
	158	{
	159	/* FIXME - Stubbed out for now */
	160
	161	/*
	162	* break_state = -1 to turn on break, and 0 to turn off break
	163	* see drivers/char/tty_io.c to see it used.
	164	* last_set_data_urb_value NEVER has the break bit set in it.
	165	*/
	166	}
	167
	168	static void f81232_set_termios(struct tty_struct *tty,
	169	struct usb_serial_port port, struct ktermios old_termios)
	170	{
	171	/* FIXME - Stubbed out for now */
	172
	173	/* Don't change anything if nothing has changed */
adc8d746	174	if (!tty_termios_hw_change(&tty->termios, old_termios))
aac1fc38 GKH	175	return;
	176
	177	/* Do the real work here... */
c97ce276	178	tty_termios_copy_hw(&tty->termios, old_termios);
aac1fc38 GKH	179	}
	180
	181	static int f81232_tiocmget(struct tty_struct *tty)
	182	{
	183	/* FIXME - Stubbed out for now */
	184	return 0;
	185	}
	186
	187	static int f81232_tiocmset(struct tty_struct *tty,
	188	unsigned int set, unsigned int clear)
	189	{
	190	/* FIXME - Stubbed out for now */
	191	return 0;
	192	}
	193
	194	static int f81232_open(struct tty_struct tty, struct usb_serial_port port)
	195	{
	196	struct ktermios tmp_termios;
	197	int result;
	198
	199	/* Setup termios */
	200	if (tty)
	201	f81232_set_termios(tty, port, &tmp_termios);
	202
aac1fc38 GKH	203	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
	204	if (result) {
	205	dev_err(&port->dev, "%s - failed submitting interrupt urb,"
	206	" error %d\n", __func__, result);
	207	return result;
	208	}
	209
	210	result = usb_serial_generic_open(tty, port);
	211	if (result) {
	212	usb_kill_urb(port->interrupt_in_urb);
	213	return result;
	214	}
	215
	216	port->port.drain_delay = 256;
	217	return 0;
	218	}
	219
	220	static void f81232_close(struct usb_serial_port *port)
	221	{
	222	usb_serial_generic_close(port);
	223	usb_kill_urb(port->interrupt_in_urb);
	224	}
	225
	226	static void f81232_dtr_rts(struct usb_serial_port *port, int on)
	227	{
	228	struct f81232_private *priv = usb_get_serial_port_data(port);
	229	unsigned long flags;
	230	u8 control;
	231
	232	spin_lock_irqsave(&priv->lock, flags);
	233	/* Change DTR and RTS */
	234	if (on)
	235	priv->line_control \|= (CONTROL_DTR \| CONTROL_RTS);
	236	else
	237	priv->line_control &= ~(CONTROL_DTR \| CONTROL_RTS);
	238	control = priv->line_control;
	239	spin_unlock_irqrestore(&priv->lock, flags);
	240	set_control_lines(port->serial->dev, control);
	241	}
	242
	243	static int f81232_carrier_raised(struct usb_serial_port *port)
	244	{
	245	struct f81232_private *priv = usb_get_serial_port_data(port);
	246	if (priv->line_status & UART_DCD)
	247	return 1;
	248	return 0;
	249	}
	250
	251	static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
	252	{
	253	struct f81232_private *priv = usb_get_serial_port_data(port);
	254	unsigned long flags;
	255	unsigned int prevstatus;
	256	unsigned int status;
	257	unsigned int changed;
	258
	259	spin_lock_irqsave(&priv->lock, flags);
	260	prevstatus = priv->line_status;
	261	spin_unlock_irqrestore(&priv->lock, flags);
	262
	263	while (1) {
	264	interruptible_sleep_on(&priv->delta_msr_wait);
	265	/* see if a signal did it */
	266	if (signal_pending(current))
267	return -ERESTARTSYS;
268
269	spin_lock_irqsave(&priv->lock, flags);
270	status = priv->line_status;
271	spin_unlock_irqrestore(&priv->lock, flags);
272
273	changed = prevstatus ^ status;
274
275	if (((arg & TIOCM_RNG) && (changed & UART_RING)) \|\|
276	((arg & TIOCM_DSR) && (changed & UART_DSR)) \|\|
277	((arg & TIOCM_CD) && (changed & UART_DCD)) \|\|
278	((arg & TIOCM_CTS) && (changed & UART_CTS))) {
279	return 0;
280	}
281	prevstatus = status;
282	}
283	/* NOTREACHED */
284	return 0;
285	}
286
287	static int f81232_ioctl(struct tty_struct *tty,
288	unsigned int cmd, unsigned long arg)
289	{
290	struct serial_struct ser;
291	struct usb_serial_port *port = tty->driver_data;
a94e9b94 GKH	292
	293	dev_dbg(&port->dev, "%s (%d) cmd = 0x%04x\n", __func__,
	294	port->number, cmd);
aac1fc38 GKH	295
	296	switch (cmd) {
	297	case TIOCGSERIAL:
	298	memset(&ser, 0, sizeof ser);
	299	ser.type = PORT_16654;
	300	ser.line = port->serial->minor;
	301	ser.port = port->number;
	302	ser.baud_base = 460800;
	303
	304	if (copy_to_user((void __user *)arg, &ser, sizeof ser))
	305	return -EFAULT;
	306
	307	return 0;
	308
	309	case TIOCMIWAIT:
a94e9b94 GKH	310	dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__,
a94e9b94 GKH	311	port->number);
aac1fc38 GKH	312	return wait_modem_info(port, arg);
aac1fc38 GKH	313	default:
a94e9b94 GKH	314	dev_dbg(&port->dev, "%s not supported = 0x%04x\n",
a94e9b94 GKH	315	__func__, cmd);
aac1fc38 GKH	316	break;
	317	}
	318	return -ENOIOCTLCMD;
	319	}
	320
	321	static int f81232_startup(struct usb_serial *serial)
	322	{
	323	struct f81232_private *priv;
	324	int i;
	325
	326	for (i = 0; i < serial->num_ports; ++i) {
	327	priv = kzalloc(sizeof(struct f81232_private), GFP_KERNEL);
	328	if (!priv)
	329	goto cleanup;
	330	spin_lock_init(&priv->lock);
	331	init_waitqueue_head(&priv->delta_msr_wait);
	332	usb_set_serial_port_data(serial->port[i], priv);
	333	}
	334	return 0;
	335
	336	cleanup:
	337	for (--i; i >= 0; --i) {
	338	priv = usb_get_serial_port_data(serial->port[i]);
	339	kfree(priv);
	340	usb_set_serial_port_data(serial->port[i], NULL);
	341	}
	342	return -ENOMEM;
	343	}
	344
	345	static void f81232_release(struct usb_serial *serial)
	346	{
	347	int i;
	348	struct f81232_private *priv;
	349
	350	for (i = 0; i < serial->num_ports; ++i) {
	351	priv = usb_get_serial_port_data(serial->port[i]);
	352	kfree(priv);
	353	}
	354	}
	355
aac1fc38 GKH	356	static struct usb_serial_driver f81232_device = {
	357	.driver = {
	358	.owner = THIS_MODULE,
	359	.name = "f81232",
	360	},
	361	.id_table = id_table,
aac1fc38 GKH	362	.num_ports = 1,
	363	.bulk_in_size = 256,
	364	.bulk_out_size = 256,
	365	.open = f81232_open,
	366	.close = f81232_close,
	367	.dtr_rts = f81232_dtr_rts,
	368	.carrier_raised = f81232_carrier_raised,
	369	.ioctl = f81232_ioctl,
	370	.break_ctl = f81232_break_ctl,
	371	.set_termios = f81232_set_termios,
	372	.tiocmget = f81232_tiocmget,
	373	.tiocmset = f81232_tiocmset,
	374	.process_read_urb = f81232_process_read_urb,
	375	.read_int_callback = f81232_read_int_callback,
	376	.attach = f81232_startup,
	377	.release = f81232_release,
	378	};
	379
	380	static struct usb_serial_driver * const serial_drivers[] = {
	381	&f81232_device,
	382	NULL,
	383	};
	384
68e24113	385	module_usb_serial_driver(serial_drivers, id_table);
aac1fc38 GKH	386
	387	MODULE_DESCRIPTION("Fintek F81232 USB to serial adaptor driver");
	388	MODULE_AUTHOR("Greg Kroah-Hartman <gregkh@linuxfoundation.org");
	389	MODULE_LICENSE("GPL v2");