Content-type: text/html Man page of usb_other_speed_cfg_descr

usb_other_speed_cfg_descr

Section: Data Structures for Drivers (9S)
Updated: 5 Jan 2004
Index Return to Main Contents
 

NAME

usb_other_speed_cfg_descr - USB other speed configuration descriptor  

SYNOPSIS

#include <sys/usb/usba.h> 
 

INTERFACE LEVEL

Solaris DDI specific (Solaris DDI)  

DESCRIPTION

The usb_other_speed_cfg_descr_t configuration descriptor defines how fields of a high speed device's configuration descriptor change if that device is run at its other speed. Fields of this descriptor reflect configuration descriptor field changes if a device's speed is changed from full to high speed, or from high to full speed.

Please refer to Section 9.6.4 of the USB 2.0 specification. The USB 2.0 specification is available at www.usb.org.

This descriptor has the following fields:


uint8_t       bLength                 Size of this descriptor,
                                      in bytes.

uint8_t       bDescriptorType         Set to USB_DESCR_TYPE_OTHER_SPEED_CFG.

uint16_t      wTotalLength            Total length of data returned */
                                      including all descriptors in
                                      the current other-speed
                                      configuration.

uint8_t       bNumInterfaces          Number of interfaces in
                                      the selected configuration.

uint8_t       bConfigurationValue     ID of the current other-speed
                                      configuration (1-based).

uint8_t       iConfiguration          Configuration value.
                                      Valid if > 0. Pass to 
                                      usb_get_string_descr(9F)
                                      to retrieve string.

uint8_t       bmAttributes            Configuration characteristics
                                      [See usb_cfg_descr(9S).]

uint8_t       bMaxPower               Maximum power consumption 
                                      in 2mA units.

 

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
ArchitecturePCI-based systems
Interface stabilityEvolving
AvailabilitySUNWusbu

 

SEE ALSO

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_descr(9S), usb_dev_qlf_descr(9S)


 

Index

NAME
SYNOPSIS
INTERFACE LEVEL
DESCRIPTION
ATTRIBUTES
SEE ALSO

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Time: 02:36:24 GMT, October 02, 2010