Ccid Class-Specific Requests; Command Summary - Advanced Card ACR89U-A2 Reference Manual

3.2. CCID Class-Specific Requests

ACR89's USB communication with PC is based on command message format standard of ACR89
reader. This device shall support one CCID Class-specific Request. Class-specific requests are sent
via Control Pipe.
3.2.1.

Command Summary

Stop any current processing command and return to a state where ACR89 is ready to accept a new
command:
bmRequestType
00100001b
ACR89U-A2 – Reference Manual
Version 1.01
bRequest wValue
ABORT
bSeq, bSlot
(01h)
wIndex wLength
Interface 0000h
Data
None
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