/* * AnyData CDMA Serial USB driver * * Copyright (C) 2005 Greg Kroah-Hartman <gregkh@suse.de> * *	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/init.h>#include <linux/tty.h>#include <linux/module.h>#include <linux/usb.h>#include "usb-serial.h"static struct usb_device_id id_table [] = {	{ USB_DEVICE(0x16d5, 0x6501) },	/* AirData CDMA device */	{ },};MODULE_DEVICE_TABLE(usb, id_table);/* if overridden by the user, then use their value for the size of the * read and write urbs */static int buffer_size;static int debug;static struct usb_driver anydata_driver = {	.owner =	THIS_MODULE,	.name =		"anydata",	.probe =	usb_serial_probe,	.disconnect =	usb_serial_disconnect,	.id_table =	id_table,};static int anydata_open(struct usb_serial_port *port, struct file *filp){	char *buffer;	int result = 0;	dbg("%s - port %d", __FUNCTION__, port->number);	if (buffer_size) {		/* override the default buffer sizes */		buffer = kmalloc(buffer_size, GFP_KERNEL);		if (!buffer) {			dev_err(&port->dev, "%s - out of memory.\n",				__FUNCTION__);			return -ENOMEM;		}		kfree (port->read_urb->transfer_buffer);		port->read_urb->transfer_buffer = buffer;		port->read_urb->transfer_buffer_length = buffer_size;		buffer = kmalloc(buffer_size, GFP_KERNEL);		if (!buffer) {			dev_err(&port->dev, "%s - out of memory.\n",				__FUNCTION__);			return -ENOMEM;		}		kfree (port->write_urb->transfer_buffer);		port->write_urb->transfer_buffer = buffer;		port->write_urb->transfer_buffer_length = buffer_size;		port->bulk_out_size = buffer_size;	}	/* Start reading from the device */	usb_fill_bulk_urb(port->read_urb, port->serial->dev,			  usb_rcvbulkpipe(port->serial->dev,				  	  port->bulk_in_endpointAddress),			  port->read_urb->transfer_buffer,			  port->read_urb->transfer_buffer_length,			  usb_serial_generic_write_bulk_callback, port);	result = usb_submit_urb(port->read_urb, GFP_KERNEL);	if (result)		dev_err(&port->dev,			"%s - failed submitting read urb, error %d\n",			__FUNCTION__, result);	return result;}static struct usb_serial_driver anydata_device = {	.driver = {		.owner =	THIS_MODULE,		.name =		"anydata",	},	.id_table =		id_table,	.num_interrupt_in =	NUM_DONT_CARE,	.num_bulk_in =		NUM_DONT_CARE,	.num_bulk_out =		NUM_DONT_CARE,	.num_ports =		1,	.open =			anydata_open,};static int __init anydata_init(void){	int retval;	retval = usb_serial_register(&anydata_device);	if (retval)		return retval;	retval = usb_register(&anydata_driver);	if (retval)		usb_serial_deregister(&anydata_device);	return retval;}static void __exit anydata_exit(void){	usb_deregister(&anydata_driver);	usb_serial_deregister(&anydata_device);}module_init(anydata_init);module_exit(anydata_exit);MODULE_LICENSE("GPL");module_param(debug, bool, S_IRUGO | S_IWUSR);MODULE_PARM_DESC(debug, "Debug enabled or not");module_param(buffer_size, int, 0);MODULE_PARM_DESC(buffer_size, "Size of the transfer buffers");