Siemens HC15 Manuel d'utilisateur télécharger pdf (Page 14)

AN39: USB Interface Description

4 USB Interface Descriptors

HC15_USB_Interface_v02 Page 14 of 28 2007-04-05

Confidential / Preliminary

4 USB Interface Descriptors

This chapter lists the USB interface descriptors for the implemented USB composite device

enumerations. The default “MdmNet“ enumeration implements three device interfaces - VCOM

port, NET port, MODEM port (see Section 4.1), whereas the “Mdm“ enumeration implements

four interfaces that are mapped to three virtual ports on the host: a CDC ACM compliant

MODEM port as well as two VCOM ports where the second VCOM port is currently reserved

for future use (see Section 4.2).

4.1 Composite Device Enumeration “MdmNet“ Variant

4.1.1 Device Descriptor

Table 2: MDMNET\Device Descriptor HC15

Name Value Dec Hex

bLength Valid 18 0x12

bDescriptorType DEVICE 1 0x01

bcdUSB 1.1 272 0x0110

bDeviceClass Communication 2 0x02

bDeviceSubClass None 0 0x00

bDeviceProtocol None 0 0x00

bMaxPacketSize0 64 64 0x40

idVendor Siemens AG 1665 0x0681

idProduct 62 62 0x003E

bcdDevice Depending on USB firmware version

iManufacturer 1 1 0x01

iProduct 2 2 0x02

iSerialNumber No serial number 0 0x00

bNumConfigurations 1 1 0x01

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 27 28

Pas de commentaire

Siemens HC15 Manuel d'utilisateur Page 14