def main(argv=sys.argv):
global handle, done
hp = [usb.hotplug_callback_handle() for i in range(2)]
vendor_id = int(argv[1]) if len(argv) > 1 else 0x045a
product_id = int(argv[2]) if len(argv) > 2 else 0x5005
class_id = int(argv[3]) if len(argv) > 3 else usb.LIBUSB_HOTPLUG_MATCH_ANY
rc = usb.init(None)
if rc < 0:
print("failed to initialise libusb: {}".format(usb.error_name(rc)))
return 1
try:
if not usb.has_capability(usb.LIBUSB_CAP_HAS_HOTPLUG):
print("Hotplug capabilites are not supported on this platform")
return 1
rc = usb.hotplug_register_callback(
None, usb.LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED, 0, vendor_id,
product_id, class_id, hotplug_callback, None, ct.byref(hp[0]))
if rc != usb.LIBUSB_SUCCESS:
print("Error registering callback 0", file=sys.stderr)
return 1
rc = usb.hotplug_register_callback(
None, usb.LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT, 0,
vendor_id, product_id, class_id, hotplug_callback_detach, None,
ct.byref(hp[1]))
if rc != usb.LIBUSB_SUCCESS:
print("Error registering callback 1", file=sys.stderr)
return 1
while done < 2:
rc = usb.handle_events(None)
if rc < 0:
print("libusb.handle_events() failed: {}".format(
usb.error_name(rc)))
finally:
if handle:
usb.close(handle)
usb.exit(None)
return 0
def main():
global devh
global VID, PID
global do_exit
#sigact = struct_sigaction()
#sigact.sa_handler = sig_hdlr
#sigemptyset(ct.byref(sigact.sa_mask))
#sigact.sa_flags = 0
signal.signal(signal.SIGINT, sig_hdlr)
rc = usb.init(None)
if rc < 0:
print("Error initializing libusb: {}".format(usb.error_name(rc)),
file=sys.stderr)
sys.exit(1)
try:
devh = usb.open_device_with_vid_pid(None, VID, PID)
if not devh:
print("Error finding USB device", file=sys.stderr)
return rc
rc = usb.claim_interface(devh, 2)
if rc < 0:
print("Error claiming interface: {}".format(usb.error_name(rc)),
file=sys.stderr)
return rc
benchmark_in(EP_ISO_IN)
while not do_exit:
rc = usb.handle_events(None)
if rc != usb.LIBUSB_SUCCESS:
break
# Measurement has already been done by the signal handler.
usb.release_interface(devh, 0)
finally:
if devh:
usb.close(devh)
usb.exit(None)
return rc
def init_capture():
global state
global img_transfer
global irq_transfer
r = usb.submit_transfer(irq_transfer)
if r < 0:
return r
r = usb.submit_transfer(img_transfer)
if r < 0:
usb.cancel_transfer(irq_transfer)
while irq_transfer:
if usb.handle_events(None) < 0:
break
return r
# start state machine
state = STATE_AWAIT_IRQ_FINGER_REMOVED
return next_state()
def main():
global devh
global img_transfer
global irq_transfer
global do_exit
exit_sem = sem_open(SEM_NAME, O_CREAT, 0)
if not exit_sem:
print("failed to initialise semaphore error {}".format(errno), file=sys.stderr)
sys.exit(1)
# only using this semaphore in this process so go ahead and unlink it now
sem_unlink(SEM_NAME)
r = usb.init(None)
if r < 0:
print("failed to initialise libusb", file=sys.stderr)
sys.exit(1)
r = find_dpfp_device()
try:
if r < 0:
print("Could not find/open device", file=sys.stderr)
return abs(r)
r = usb.claim_interface(devh, 0)
if r < 0:
print("usb_claim_interface error {} {}".format(r, usb.strerror(usb.error(r))), file=sys.stderr)
return abs(r)
print("claimed interface")
r = print_f0_data()
if r < 0:
usb.release_interface(devh, 0)
return abs(r)
r = do_init()
try:
if r < 0:
return abs(r)
# async from here onwards
#sigact = struct_sigaction()
#sigact.sa_handler = sighandler
#sigemptyset(ct.byref(sigact.sa_mask))
#sigact.sa_flags = 0
signal.signal(signal.SIGINT, sighandler)
signal.signal(signal.SIGTERM, sighandler)
if hasattr(signal, "SIGQUIT"):
signal.signal(signal.SIGQUIT, sighandler)
r = pthread_create(ct.byref(poll_thread), NULL, poll_thread_main, NULL)
if r:
return abs(r)
r = alloc_transfers()
if r < 0:
request_exit(1)
pthread_join(poll_thread, NULL)
return abs(r)
r = init_capture()
if r < 0:
request_exit(1)
pthread_join(poll_thread, NULL)
return abs(r)
while not do_exit:
sem_wait(exit_sem)
print("shutting down...")
pthread_join(poll_thread, NULL)
r = usb.cancel_transfer(irq_transfer)
if r < 0:
request_exit(1)
return abs(r)
r = usb.cancel_transfer(img_transfer)
if r < 0:
request_exit(1)
return abs(r)
while irq_transfer or img_transfer:
if usb.handle_events(None) < 0:
break
r = 0 if do_exit == 1 else 1
finally:
usb.free_transfer(img_transfer)
usb.free_transfer(irq_transfer)
set_mode(0);
set_hwstat(0x80)
usb.release_interface(devh, 0)
finally:
usb.close(devh)
usb.exit(None)
return abs(r)
def main(argv=sys.argv):
global devh
global img_transfer
global irq_transfer
global do_exit
r = usb.init(None)
if r < 0:
print("failed to initialise libusb", file=sys.stderr)
sys.exit(1)
r = find_dpfp_device()
try:
if r < 0:
print("Could not find/open device", file=sys.stderr)
return abs(r)
r = usb.claim_interface(devh, 0)
if r < 0:
print("usb_claim_interface error {}".format(r), file=sys.stderr)
return abs(r)
print("claimed interface")
r = print_f0_data()
if r < 0:
usb.release_interface(devh, 0)
return abs(r)
r = do_init()
try:
if r < 0:
return abs(r)
# async from here onwards
r = alloc_transfers()
if r < 0:
return abs(r)
r = init_capture()
if r < 0:
return abs(r)
#sigact = struct_sigaction()
#sigact.sa_handler = sighandler
#sigemptyset(ct.byref(sigact.sa_mask))
#sigact.sa_flags = 0
signal.signal(signal.SIGINT, sighandler)
signal.signal(signal.SIGTERM, sighandler)
if hasattr(signal, "SIGQUIT"):
signal.signal(signal.SIGQUIT, sighandler)
while not do_exit:
r = usb.handle_events(None)
if r < 0:
return abs(r)
print("shutting down...")
if irq_transfer:
r = usb.cancel_transfer(irq_transfer)
if r < 0:
return abs(r)
if img_transfer:
r = usb.cancel_transfer(img_transfer)
if r < 0:
return abs(r)
while irq_transfer or img_transfer:
if usb.handle_events(None) < 0:
break
r = 0 if do_exit == 1 else 1
finally:
usb.free_transfer(img_transfer)
usb.free_transfer(irq_transfer)
set_mode(0);
set_hwstat(0x80)
usb.release_interface(devh, 0)
finally:
usb.close(devh)
usb.exit(None)
return abs(r)
