/*
ch34x?USB?to?serial?adaptor?driver
http://www.wch.cn
http://www.winchiphead.cn??
*/

//?This?module?is?ch34x?USB?to?serial?adaptor?driver?on?linux?2.4.20?base?on?usb_serial.o
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?

#ifdef?CONFIG_USB_SERIAL_DEBUG
static?int?debug=1;
#else
static?int?debug;
#endif

#include?“usb-serial.h“

/*
*?Version?Information
*/
#define?DRIVER_VERSION?“v1.0“
#define?DRIVER_DESC?“NanJing?QinHeng?ch34x?USB?to?serial?adaptor?driver“
#define?FALSE?-1

#define?ch34x_VENDOR_ID_1??0x4348?//?old?vid
#define?ch34x_VENDOR_ID_2??0x1a86?//?new?vid
#define?ch34x_PRODUCT_ID_1?0x5523?//?pid
#define?ch34x_PRODUCT_ID_2?0x7523?//?pid
#define?CONTROL_DTR??????0x20
#define?CONTROL_RTS??????0x40
#define?BREAK_ON	?????0xffff
#define?BREAK_OFF	?????0x0000
#define?VENDOR_READ_REQUEST_TYPE	0xc0
#define?VENDOR_READ_REQUEST		????0x01
#define?VENDOR_WRITE_REQUEST_TYPE	0x40
#define?VENDOR_WRITE_REQUEST		0x01

static?struct?usb_device_id?id_table?[]?=?
{
	{?USB_DEVICE（ch34x_VENDOR_ID_1?ch34x_PRODUCT_ID_1）?}
	{?USB_DEVICE（ch34x_VENDOR_ID_1?ch34x_PRODUCT_ID_2）?}
	{?USB_DEVICE（ch34x_VENDOR_ID_2?ch34x_PRODUCT_ID_1）?}
	{?USB_DEVICE（ch34x_VENDOR_ID_2?ch34x_PRODUCT_ID_2）?}
	{?}					/*?Terminating?entry?*/
};

MODULE_DEVICE_TABLE?（usb?id_table）;

static?int??ch34x_open?（struct?usb_serial_port?*port?struct?file?*filp）;
static?void?ch34x_close?（struct?usb_serial_port?*port?struct?file?*filp）;
static?void?ch34x_set_termios?（struct?usb_serial_port?*portstruct?termios?*old）;
static?int??ch34x_ioctl?（struct?usb_serial_port?*port?struct?file?*fileunsigned?int?cmd?unsigned?long?arg）;
static?void?ch34x_read_int_callback?（struct?urb?*urb）;
static?void?ch34x_read_bulk_callback?（struct?urb?*urb）;
static?void?ch34x_write_bulk_callback?（struct?urb?*urb）;
static?int??ch34x_write?（struct?usb_serial_port?*port?int?from_userconst?unsigned?char*buf?int?count）;
static?void?ch34x_break_ctl（struct?usb_serial_port?*portint?break_state）;
static?int??ch34x_startup?（struct?usb_serial?*serial）;
static?void?ch34x_shutdown?（struct?usb_serial?*serial）;
static?int?SetBaudrate（?unsigned?int?value?struct?usb_serial_port?*port）;

static?struct?usb_serial_device_type?ch34x_device?=?{
	.owner?=		????????THIS_MODULE
		.name?=		?????????	“ch34x“
		.id_table?=	????????	id_table
		.num_interrupt_in?=?????NUM_DONT_CARE
		.num_bulk_in?=???????	1
		.num_bulk_out?=	????	1
		.num_ports?=	????	1
		.open?=		????????????ch34x_open
		.close?=		????????ch34x_close
		.write?=		????????ch34x_write
		.ioctl?=		????????ch34x_ioctl
		.break_ctl?=	????	ch34x_break_ctl
		.set_termios?=	????	ch34x_set_termios
		.read_bulk_callbac