Service_USB 0 - Pipe released

Service_USB 0 - Pipe released
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Service_USB 0 - Pipe released — Indicate pipe release

On Entry

R0	0 (reason code)
R1	&80C00 (USB Service call)
R2	Pointer to controller structure
R3	Pointer to device structure
R4	Pointer to endpoint structure
R5	Number of remaining applications sharing the pipe

On Exit

R0	preserved
R1	preserved to pass on (do not claim)
R2, R3, R4, R5	preserved

Use

This service call is generated when a pipe is closed (Shared pipes will generate a service call for each claimants closure). Can be used by programs waiting for exclusive pipe access. The endpoint structure is passed to enable identification of pipes available for re-use.