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man pages section 9: DDI and DKI Properties and Data Structures |
- USB device descriptor
#include <sys/usb/usba.h>
Solaris DDI specific (Solaris DDI)
The usb_dev_descr_t 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 usb_get_dev_data(9F).
A device descriptor contains the following fields:
uint8_t bLength Size of this descriptor, in bytes. uint8_t bDescriptorType Set to USB_DESCR_TYPE_DEV. uint16_t bcdUSB USB specification release number supported, in bcd. uint8_t bDeviceClass Class code (see below). uint8_t bDeviceSubClass Subclass code (see USB 2.0 specification of applicable device class for information.) uint8_t bDeviceProtocol Protocol code (see USB 2.0 specification of applicable device class for information.) uint8_t bMaxPacketSize0 Maximum packet size of endpoint 0. uint16_t idVendor vendor ID value. uint16_t idProduct product ID value. uint16_t bcdDevice Device release number in binary coded decimal. uint8_t iManufacturer Index of optional manufacturer description string. Valid if > 0. uint8_t iProduct Index of optional product description string. Valid if > 0. uint8_t iSerialNumber Index of optional serial number string. Valid if > 0. uint8_t bNumConfigurations Number of available configurations. Device descriptors bDeviceClass values: USB_CLASS_PER_INTERFACE Class information is at interface level. USB_CLASS_COMM CDC control device class. USB_CLASS_DIAG Diagnostic device class. USB_CLASS_HUB HUB device class. USB_CLASS_MISC MISC device class. USB_CLASS_VENDOR_SPEC Vendor-specific class. USB_CLASS_WIRELESS Wireless controller device class.
See attributes(5) for descriptions of the following attributes:
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attributes(5), usb_get_alt_if(9F), usb_get_cfg(9F), usb_get_dev_data(9F), usb_get_string_descr(9F), usb_parse_data(9F), usb_cfg_descr(9S), usb_ctrl_request(9S), usb_dev_qlf_descr(9S), usb_ep_descr(9S), usb_if_descr(9S), usb_other_speed_cfg_descr(9S), usb_string_descr(9S)