Ioctl_usbio_get_configuration, Universal usb device driver (usbio) – Motorola USB08 User Manual

Page 156

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Designer Reference Manual

USB08 Evaluation Board

156

Universal USB Device Driver (USBIO)

MOTOROLA

Universal USB Device Driver (USBIO)

IOCTL_USBIO_GET_CONFIGURATION

The IOCTL_USBIO_GET_CONFIGURATION operation returns the
current configuration of the device.

lpInBuffer

Not used with this operation. Set to NULL.

nInBufferSize

Not used with this operation. Set to zero.

lpOutBuffer

Pointer to a buffer that will receive an
USBIO_GET_CONFIGURATION_DATA (

page 191

) data structure.

nOutBufferSize

Specifies the size, in bytes, of the buffer pointed to by

lpOutBuffer

,

which has to be at least sizeof(USBIO_GET_CONFIGURATION_DATA)
for this operation.

Comments

A GET_CONFIGURATION request appears on the bus. The structure
USBIO_GET_CONFIGURATION_DATA (

page 191

) returns the

configuration value. A value of zero means “not configured”.

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