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usb_other_speed_cfg_descr - USB other speed configuration descriptor

#include <sys/usb/usba.h>

illumos DDI specific (illumos DDI) 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.

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

ATTRIBUTE TYPE ATTRIBUTE VALUE

Architecture PCI-based systems

Interface stability Committed

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)