Hello Xiaofan
On 15/10/2012 10:15, Xiaofan Chen wrote:
>
> Yes. The USB Composite Generic Parent driver will load usb mass storage
> driver for interface 0 and the winusb driver for the interfac 1.
> http://msdn.microsoft.com/en-us/library/windows/hardware/ff537109(v=vs.85).aspx
>
Fantastic! Thank you.
For anyone else trying to do this here is a listing of my device
descriptor - ID expunged to protect the innocent.
2 things to bear in mind -
1. if you have used the VID/PID before you will either need to remove
existing driver(s) or change the PID else Windows seems to load up the
device in its previous configuration
2. Once the device loads you will need to use Zadig or something similar
to install the WinUSB driver for Interface #2.
------------- Device Qualifier Descriptor -------------
bLength : 0x12 (18 bytes)
bDescriptorType : 0x01 (Device Qualifier Descriptor)
bcdUSB : 0x200 (USB Version 2.00)
bDeviceClass : 0x00 (defined by the interface descriptors)
bDeviceSubClass : 0x00
bDeviceProtocol : 0x00
bMaxPacketSize0 : 0x40 (64 bytes)
idVendor : 0xXXXX
idProduct : 0xA00A
bcdDevice : 0x100
iManufacturer : 0x01
Language 0x0409 : "XXXXXX XXXXXXX, XXX."
iProduct : 0x02
Language 0x0409 : "XXXXXXXX USB Device"
iSerialNumber : 0x03
Language 0x0409 : "123456789012"
bNumConfigurations : 0x01
-------------- Configuration Descriptor ---------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x02 (Configuration Descriptor)
wTotalLength : 0x0029 (41 bytes)
bNumInterfaces : 0x02
bConfigurationValue : 0x01
iConfiguration : 0x00
bmAttributes : 0x80 (Bus Powered)
MaxPower : 0x32 (100 mA)
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x00
bAlternateSetting : 0x00
bNumEndpoints : 0x02
bInterfaceClass : 0x08 (Mass Storage)
bInterfaceSubClass : 0x06 (SCSI transparent command set)
bInterfaceProtocol : 0x50 (BulkÂOnly Transport)
iInterface : 0x00
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x85 (Direction=IN EndpointID=5)
bmAttributes : 0x02 (TransferType=Bulk)
wMaxPacketSize : 0x200 (max 512 bytes)
bInterval : 0x00 (never NAKs)
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x06 (Direction=OUT EndpointID=6)
bmAttributes : 0x02 (TransferType=Bulk)
wMaxPacketSize : 0x200 (max 512 bytes)
bInterval : 0x00 (never NAKs)
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x01
bAlternateSetting : 0x00
bNumEndpoints : 0x00
bInterfaceClass : 0x00 (defined by the interface descriptors)
bInterfaceSubClass : 0x00
bInterfaceProtocol : 0x00
iInterface : 0x00
------------------------------------------------------------------------------
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