Data Structures for Drivers                     usbdevdescr(9S)



NAME
     usbdevdescr - USB device descriptor

SYNOPSIS
     #include 


INTERFACE LEVEL
     Solaris DI specific (Solaris DI)

DESCRIPTION
     The usbdevdescrt device  descriptor  defines  device-wide
     attributes.  Please  refer  to  Section 9.6.1 of the USB 2.0
     specification. The USB 2.0  specification  is  available  at
     www.usb.org.


     The device descriptor is retrieved from a USB device  during
     device    enumeration    and    can    be    accessed    via
     usbgetdevdata(9F).


     A device descriptor contains the following fields:

        uint8t     bLength             Size of this descriptor,
                                         in bytes.

         uint8t     bDescriptorType     Set to USBDESCRTYPEDEV.

         uint16t    bcdUSB              USB specification release
                                         number supported, in bcd.

         uint8t     bDeviceClass        Class code (see below).

         uint8t     bDeviceSubClass     Subclass code (see USB 2.0
                                         specification of applicable
                                         device class for information.)

         uint8t     bDeviceProtocol     Protocol code (see USB 2.0
                                         specification of applicable
                                         device class for information.)

         uint8t     bMaxPacketSize0     Maximum packet size of
                                         endpoint 0.

         uint16t    idVendor            vendor ID value.

         uint16t    idProduct           product ID value.

         uint16t    bcdDevice           Device release number in
                                         binary coded decimal.




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Data Structures for Drivers                     usbdevdescr(9S)



         uint8t     iManufacturer       Index of optional manufacturer
                                         description string.
                                         Valid if > 0.

         uint8t     iProduct            Index of optional product
                                         description string.
                                         Valid if > 0.

         uint8t     iSerialNumber       Index of optional serial
                                         number string.
                                         Valid if > 0.

         uint8t     bNumConfigurations  Number of available
                                         configurations.


         Device descriptors bDeviceClass values:

         USBCLASPERINTERFACE         Class information is at
                                         interface level.

         USBCLASCOM                  CDC control device class.

         USBCLASDIAG                  Diagnostic device class.

         USBCLASHUB                   HUB device class.

         USBCLASMISC                  MISC device class.

         USBCLASVENDORSPEC           Vendor-specific class.

         USBCLASWIRELES              Wireless controller
                                         device class.




ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:















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Data Structures for Drivers                     usbdevdescr(9S)



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Architecture                 PCI-based systems           
    
     Interface stability          Committed                   
    
     Availability                 SUNWusbu                    
    


SEE ALSO
     attributes(5),     usbgetaltif(9F),      usbgetcfg(9F),
     usbgetdevdata(9F),              usbgetstringdescr(9F),
     usbparsedata(9F), usbcfgdescr(9S), usbctrlrequest(9S),
     usbdevqlfdescr(9S),  usbepdescr(9S),  usbifdescr(9S),
     usbotherspeedcfgdescr(9S), usbstringdescr(9S)






































SunOS 5.11           Last change: 5 Jan 2004                    3