Dec., 2007

V0.22P

-5-

F71612

Table 6-2 Configuration Descriptor

offset

Field

size

Value

0

BLength

1

0x09

1

bDescriptor Type

1

0x04

2

wInterfaceNumber

1

0x00

3

bAlternateSetting

1

0x00

4

bNumEndpoints

1

0x02

5

bInterfaceClass

1

0xff

6

bInterfaceSubClass

1

0xff

7

bInterfaceProtocol

1

0xff

8

IInterface

1

0x00

Table 6-3 Interface Descriptor

offset

Field

size

Value

0

BLength

1

0x07

1

bDescriptor Type

1

0x05

2

bEndpointAddress

1

0x81

3

BmAttributes

1

0x02

4

wMaxPacketSize

2

0x0010

6

BInterval

1

0x00

Table 6-4 In Endpoint Descriptor

offset

Field

size

Value

0

BLength

1

0x07

1

bDescriptor Type

1

0x05

2

bEndpointAddress

1

0x01

3

BmAttributes

1

0x02

4

wMaxPacketSize

2

0x0010

6

BInterval

1

0x00

Table 6-5 Out Endpoint Descriptor

The string table 1 is about manufacturer information, its’ contents is “FINTEK”, the string table 2

is about Product information, its contents is “eHome Infrared Transceiver. The string table 3 is about

serial number information, its contents is “88636562727801”.

In power function, The F71612 supports remote-wakeup function for USB interface, when PC

system into S3 state. The F71612 decodes IR protocol is the same power key of remote control. The

F71612 is asserted USB interface to wakeup PC system.

The F71612 is compatible for Microsoft Windows Vista IR Receiver or Transceiver Emulation

Device. The F71612 support Microsoft Compatible Device Descriptor and Extended Compact ID

Descriptor are used to tell the host what type of device the emulation is. Vista Emulation Device

driver transmits command over out endpoint1 and device return information over in endpoint1. About

descriptor and command information, reference Microsoft Windows Vista IR Receiver or Transceiver