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from __future__ import print_function
import hid
import time
# enumerate USB devices
for d in hid.enumerate():
keys = list(d.keys())
keys.sort()
for key in keys:
print("%s : %s" % (key, d[key]))
print()
# try opening a device, then perform write and read
h = hid.device()
try:
print("Opening the device")
h.open(0x534C, 0x0001) # TREZOR VendorID/ProductID
print("Manufacturer: %s" % h.get_manufacturer_string())
print("Product: %s" % h.get_product_string())
print("Serial No: %s" % h.get_serial_number_string())
# enable non-blocking mode
h.set_nonblocking(1)
# write some data to the device
print("Write the data")
h.write([0, 63, 35, 35] + [0] * 61)
# wait
time.sleep(0.05)
# read back the answer
print("Read the data")
while True:
d = h.read(64)
if d:
print(d)
else:
break
print("Closing the device")
h.close()
except IOError as ex:
print(ex)
print("hid error:")
print(h.error())
print("")
print("You probably don't have the hard-coded device.")
print("Update the h.open() line in this script with the one")
print("from the enumeration list output above and try again.")
print("Done")
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