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Motorola USB08 Reference Manual: Ioctl_usbio_get_descriptor

Universal serial bus evaluation board using the mc68hc908jb8.
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IOCTL_USBIO_GET_DESCRIPTOR

lpInBuffer
nInBufferSize
lpOutBuffer
nOutBufferSize
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USB08 Evaluation Board
MOTOROLA
The IOCTL_USBIO_GET_DESCRIPTOR operation requests a specific
descriptor from the device.
Pointer to a buffer that contains an USBIO_DESCRIPTOR_REQUEST
(page
187) data structure. This data structure has to be filled completely
by the caller.
Specifies the size, in bytes, of the buffer point to by lpInBuffer, which
has to be sizeof(USBIO_DESCRIPTOR_REQUEST) for this operation.
Pointer to a buffer that will receive the descriptor data.
Specifies the size in bytes, of the buffer pointed to be lpOutBuffer.
The buffer that is passed to this function in lpOutBuffer should be
large enough to hold the requested descriptor, otherwise only a part of
the descriptor will be returned. The size of the output buffer should be a
multiple of the packet size of the default pipe (endpoint zero).
Universal USB Device Driver (USBIO)
Universal USB Device Driver (USBIO)
Programming Interface
Designer Reference Manual
151

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