USB HOST DRIVER V03 Freescale Semiconductor / Motorola, USB HOST DRIVER V03 Datasheet - Page 32

• Manufacturer Part Number: USB HOST DRIVER V03
• Description: USB Host Driver v03
• Manufacturer: Freescale Semiconductor / Motorola

3.5.4.
Requests current Device configuration value.
DeviceIoControl parameters:
lpInBuffer
No input information specified. Must be NULL.
nInBufferSize
No input information specified. Must be 0.
lpOutBuffer
Driver returns a current configuration value into
structure.
nOutBufferSize
Specifies
USB_GET_CONFIGURATION_REQUEST
Comments:
The
returned in
of zero returned, should be considered as an unconfigured Device state. Within this
request no action on the bus occurred. The MOTUSB Driver maintains an internal
variable to track the active configuration index, and change it along with changing
configuration requests.
M
bConfigurationValue
size
bConfigValue
IOCTL_USB_GET_CONFIGURATION
of
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
output
of the
member of the descriptor of the current configuration is
buffer.
Programming Interface.
USB_GET_CONFIGURATION_REQUEST
structure.
Must
be
USB_GET_CONFIGURATION_REQUEST
equal
to
the
structure. A value
size
of
the
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