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de-hardcode interface numbers; make script smart enough to find the secret sauce interface

This commit is contained in:
noah 2012-02-09 16:07:30 -06:00
parent a472f6f10c
commit 107ee5384e
1 changed files with 28 additions and 15 deletions
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43
logitech_k750.py
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@ -37,10 +37,20 @@ class USB(object):
def __init__(self, vendor_id, product_id):
self.vendor_id = vendor_id
self.product_id = product_id
self.device = usb.core.find(idVendor=self.vendor_id,
idProduct=self.product_id)
self.device = usb.core.find(idVendor=self.vendor_id, idProduct=self.product_id)
if self.device is None: sys.exit('No device found: %s, %s' % \
(self.vendor_id, self.product_id))
self.interface = None
for config in self.device:
for interface in config:
# bInterfaceProtocol 1 is keyboard, per USB spec
# 2 is mouse, per USB spec
# 0 is logitech's special sauce (?)
if interface.bInterfaceProtocol == 0:
self.interface = interface
if self.interface is None:
sys.exit("Couldn't find special sauce interface.")
def detach(self, n):
#print "detaching.... ",
@ -67,8 +77,8 @@ class USB(object):
def open(self, device_index=0, interface_indices=(0,0,), endpoint_index=0):
self.configuration = self.device[device_index]
if self.configuration is None: sys.exit("Bad configuration.")
self.interface = self.configuration[interface_indices]
if self.interface is None: sys.exit("Bad interface.")
#self.interface = self.configuration[interface_indices]
#if self.interface is None: sys.exit("Bad interface.")
self.endpoint = self.interface[endpoint_index]
if self.endpoint is None: sys.exit("Bad endpoint.")
@ -76,17 +86,20 @@ if __name__ == '__main__':
# find
kb = USB( vendor_id=0x046d, product_id=0xc52b)
kb.open( device_index=0, interface_indices=(2,0,), endpoint_index=0 )
#kb.open( device_index=0, interface_indices=(2,0,), endpoint_index=0 )
kb.open( device_index=0,
interface_indices=(kb.interface.bInterfaceNumber,0,),
endpoint_index=0 )
kb.detach(2)
kb.claim(2)
kb.detach(kb.interface.bInterfaceNumber)
kb.claim(kb.interface.bInterfaceNumber)
# fuzz (ymmv here -- I used wireshark, and there is a lot of
# other noise traffic that I am not including because I don't
# think it's required to make this work)
#kb.device.ctrl_transfer(0x21, 0x09, 0x0210, 2,"\x10\xff\x81\x00\x00\x00\x00"),
#kb.device.ctrl_transfer(0x21, 0x09, 0x0210, 2,"\x10\xff\x83\xb5\x31\x00\x00"),
kb.device.ctrl_transfer(0x21, 0x09, 0x0210, 2, "\x10\x02\x09\x03\x78\x01\x00"),
kb.device.ctrl_transfer(0x21, 0x09, 0x0210, kb.interface.bInterfaceNumber, "\x10\x02\x09\x03\x78\x01\x00"),
#kb.device.ctrl_transfer(0x21, 0x09, 0x0210, 2,"\x10\x02\x02\x02\x00\x00\x00"),
# profit
@ -100,13 +113,13 @@ if __name__ == '__main__':
charge = data[4]
lux = int(round(((255*data[5])+data[6])/538.0, 2)*100)
print "%s,%s" % (charge, lux)
#"Charge: %s Lux: %s (%s | %s)" % \
#(data[4],
#data[5],
#data[6])
# "Charge: %s Lux: %s (%s | %s)" % \
# (data[4],
# data[5],
# data[6])
kb.release(2)
kb.attach(2)
time.sleep(1)
kb.release(kb.interface.bInterfaceNumber)
kb.attach(kb.interface.bInterfaceNumber)
#time.sleep(1)
# Python™ ftw!