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7-30 Lucent Technologies Inc.
USS-720 Preliminary User Guide, Rev. 2
USB Device Driver February 1999
13
4 I/O Control Codes (continued)
4.21 IOCTL_SOFT_RESET
IOCTL_SOFT_RESET resets the device, flushes the Bulk Out and Bulk In pipes to the default states. Details
regarding parameters and error codes follow.
4.21.1 Parameters
lpInBuffer—Points to an input buffer. Not used with this operation. Set to NULL.
nInBufferSize—Specifies the size (in bytes) of the buffer pointed to by lpInBuffer. Not used with this operation. Set
to zero.
lpOutBuffer—Points to an output buffer. Not used with this operation. Set to NULL.
nOutBufferSize—Specifies the size (in bytes) of the buffer pointed to by lpOutBuffer. Not used with this operation.
Set to zero.
lpBytesReturned—Points to a DWORD that receives the actual size (in bytes) of the data stored into lpOutBuffer.
Not used with this operation.
4.21.2 Notes
None.
4.21.3 Error Code
STATUS_INSUFFICIENT_RESOURCES—Not enough memory to allocate a request to perform a soft reset on this
device instance.