my Atiny85 send via Vusb sample (using atmel2015 & USBasp) an Descriptor to host PC.
there bring my part into a Hid Class.
With my self maked *inf file i can bring em into the "Univerasl Serial device" class, and
give em an unique DeviceGUID (without the uid the part stay unaccessable)
My Question is how i must form out my device descriptor to become atomatical an "Universal Serial device"
I have Change PID and VID , with original Voti PID/VID the part jumps alone into this class, but stay unaccessable
how Long i dont install my handmaked *.inf with unique DeviceGUID
I can open the device with my hjandmaked *inf install (or automatic update with DevCon) fine.
I wich i dont Need some other Software and the part go alone into this class.
Oening wit CreateFile succs if the DeviceGUID is set via Inf only
Here the descriptor sampe to come as HID Input
Code: Select all
PROGMEM const char usbHidReportDescriptor[22] = { // USB report descriptor
0x06, 0x00, 0xff, // USAGE_PAGE (Generic Desktop)
0x09, 0x01, // USAGE (Vendor Usage 1)
0xa1, 0x01, // COLLECTION (Application)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0xff, 0x00, // LOGICAL_MAXIMUM (255)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x01, // REPORT_COUNT (1)
0x09, 0x00, // USAGE (Undefined)
0xb2, 0x02, 0x01, // FEATURE (Data,Var,Abs,Buf)
0xc0 // END_COLLECTION
};
This pack of data Comes from Arduino, i cant overlay that with the Structure from USB Spec
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typedef struct {
unsigned char bLength; // Size of this Descriptor in Bytes
unsigned char bDescriptorType; // Descriptor Type (=1)
unsigned int bcdUSB; // USB Spec Release Number in BCD
unsigned char bDeviceClass; // Device Class Code
unsigned char bDeviceSubClass; // Device Subclass Code
unsigned char bDeviceProtocol; // Device Protocol Code
unsigned char bMaxPacketSize0; // Maximum Packet Size for EP0
unsigned int idVendor; // Vendor ID
unsigned int idProduct; // Product ID
unsigned int bcdDevice; // Device Release Number in BCD
unsigned char iManufacturer; // Index of String Desc for Manufacturer
unsigned char iProduct; // Index of String Desc for Product
unsigned char iSerialNumber; // Index of String Desc for SerNo
unsigned char bNumConfigurations; // Number of possible Configurations
} device_descriptor;
Equal what ever the descriptor send to host, when i later install my Inf , the device jump always
to the "Universal Serial device" class, that is what i will do with a own descriptor:
Code: Select all
; KeyMan.inf
; Copyright (c) 1998-2015 KarstenSchulz
[Strings]
DeviceName = "KeyMan"
VendorName = "KarstenSchulz"
DeviceID = "VID_16C1&PID_15DF" //my self maked pid/vid
DeviceGUID = "{EEBE3F79-3A2A-4304-9791-EBF0E998E93F}" //tha essential DeviceGUID without i cant never open the part
[Version]
Signature = "$Windows NT$
ClassGuid = {88bae032-5a81-49f0-bc3d-a4ff138216d6}
Provider = "KarstenSchulz"
DriverVer = 30/11/2015, 8.0.0.0
[ClassInstall32]
Addreg = WinUSBDeviceClassReg
[Manufacturer]
%VendorName% = KarstenSchulz_WinUSB,NTx86,NTamd64,NTia64
[KarstenSchulz_WinUSB.NTx86]
%DeviceName% = USB_Install, USB\%DeviceID%
[KarstenSchulz_WinUSB.NTamd64]
%DeviceName% = USB_Install, USB\%DeviceID%
[KarstenSchulz_WinUSB.NTia64]
%DeviceName% = USB_Install, USB\%DeviceID%
[USB_Install]
Include = winusb.inf
Needs = WINUSB.NT
[USB_Install.Services]
Include = winusb.inf
AddService = WinUSB,0x00000002,WinUSB_ServiceInstall
[WinUSB_ServiceInstall]
DisplayName = "WinUSB - Kernel Driver 0/11/2015 8.0.0.0"
ServiceType = 1
StartType = 3
ErrorControl = 1
ServiceBinary = %12%\WinUSB.sys
[USB_Install.Wdf]
KmdfService = WINUSB, WinUsb_Install
[USB_Install.HW]
AddReg = AddDeviceInterfaceGUID
[AddDeviceInterfaceGUID]
HKR,,DeviceInterfaceGUIDs,0x10000,%DeviceGUID%
HKR,,FriendlyName,,"KeyMan"
Thanks for any help how i can become an descriptor example or any Information about it,
Best regards
Karsten Schulz from Berlin