tree cfddbafe49babf3c6633e369054a62612ca35851
parent 53cf48399ad3b08c9115b4fce73dee0b6e726c91
author Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> 1364968934 +0200
committer Samuel Ortiz <sameo@linux.intel.com> 1365690547 +0200

NFC: pn533: Add pn533_abort_cmd procedure

pn533_abort_cmd() aborts last command sent to the controller
and cancels already requested urb.

As ACR122U does not support any mechanism (as ACK for standard
PN533) which aborts last command this cannot be issued for this
device. Otherwise, acr122u will behave in an unstable way.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>