diff --git a/panda/__init__.py b/panda/__init__.py
index 8d90d54..aa6aca1 100644
--- a/panda/__init__.py
+++ b/panda/__init__.py
@@ -78,7 +78,8 @@ class WifiHandle(object):
     self.sock.close()
 
 class Panda(object):
-  REQUEST_TYPE = usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE
+  REQUEST_IN = usb1.ENDPOINT_IN | usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE
+  REQUEST_OUT = usb1.ENDPOINT_OUT | usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE
 
   def __init__(self, serial=None, claim=True):
     self._serial = serial
@@ -118,7 +119,7 @@ class Panda(object):
   # ******************* health *******************
 
   def health(self):
-    dat = self._handle.controlRead(Panda.REQUEST_TYPE, 0xd2, 0, 0, 13)
+    dat = self._handle.controlRead(Panda.REQUEST_IN, 0xd2, 0, 0, 13)
     a = struct.unpack("IIBBBBB", dat)
     return {"voltage": a[0], "current": a[1],
             "started": a[2], "controls_allowed": a[3],
@@ -130,45 +131,45 @@ class Panda(object):
 
   def enter_bootloader(self):
     try:
-      self._handle.controlWrite(Panda.REQUEST_TYPE, 0xd1, 0, 0, b'')
+      self._handle.controlWrite(Panda.REQUEST_OUT, 0xd1, 0, 0, b'')
     except Exception as e:
       print(e)
       pass
 
   def get_serial(self):
-    dat = self._handle.controlRead(Panda.REQUEST_TYPE, 0xd0, 0, 0, 0x20)
+    dat = self._handle.controlRead(Panda.REQUEST_IN, 0xd0, 0, 0, 0x20)
     hashsig, calc_hash = dat[0x1c:], hashlib.sha1(dat[0:0x1c]).digest()[0:4]
     if hashsig != calc_hash:
       raise PandaHashMismatchException(calc_hash, hashsig)
     return [dat[0:0x10], dat[0x10:0x10+10]]
 
   def get_secret(self):
-    return self._handle.controlRead(Panda.REQUEST_TYPE, 0xd0, 1, 0, 0x10)
+    return self._handle.controlRead(Panda.REQUEST_IN, 0xd0, 1, 0, 0x10)
 
   # ******************* configuration *******************
 
   def set_controls_allowed(self, on):
-    self._handle.controlWrite(Panda.REQUEST_TYPE, 0xdc, (0x1337 if on else 0), 0, b'')
+    self._handle.controlWrite(Panda.REQUEST_OUT, 0xdc, (0x1337 if on else 0), 0, b'')
 
   def set_can_baud(self, bus, baud):
-    self._handle.controlWrite(Panda.REQUEST_TYPE, 0xde, bus, 0, struct.pack('I', baud))
+    self._handle.controlWrite(Panda.REQUEST_OUT, 0xde, bus, 0, struct.pack('I', baud))
     return self.get_can_baud(bus)
 
   def get_can_baud(self, bus):
-    return struct.unpack("I", self._handle.controlRead(Panda.REQUEST_TYPE, 0xdf, bus, 0, 4))[0]
+    return struct.unpack("I", self._handle.controlRead(Panda.REQUEST_IN, 0xdf, bus, 0, 4))[0]
 
   def set_gmlan(self, bus, on):
-    self._handle.controlWrite(Panda.REQUEST_TYPE, 0xdb, bus, bool(on), b'')
+    self._handle.controlWrite(Panda.REQUEST_OUT, 0xdb, bus, bool(on), b'')
 
   def set_uart_baud(self, uart, rate):
-    self._handle.controlWrite(Panda.REQUEST_TYPE, 0xe1, uart, rate, b'')
+    self._handle.controlWrite(Panda.REQUEST_OUT, 0xe1, uart, rate, b'')
 
   def set_uart_parity(self, uart, parity):
     # parity, 0=off, 1=even, 2=odd
-    self._handle.controlWrite(Panda.REQUEST_TYPE, 0xe2, uart, parity, b'')
+    self._handle.controlWrite(Panda.REQUEST_OUT, 0xe2, uart, parity, b'')
 
   def set_uart_callback(self, uart, install):
-    self._handle.controlWrite(Panda.REQUEST_TYPE, 0xe3, uart, int(install), b'')
+    self._handle.controlWrite(Panda.REQUEST_OUT, 0xe3, uart, int(install), b'')
 
   # ******************* can *******************
 
@@ -210,7 +211,7 @@ class Panda(object):
   # ******************* serial *******************
 
   def serial_read(self, port_number):
-    return self._handle.controlRead(Panda.REQUEST_TYPE, 0xe0, port_number, 0, 0x40)
+    return self._handle.controlRead(Panda.REQUEST_IN, 0xe0, port_number, 0, 0x40)
 
   def serial_write(self, port_number, ln):
     return self._handle.bulkWrite(2, chr(port_number) + ln)
@@ -219,13 +220,13 @@ class Panda(object):
 
   # pulse low for wakeup
   def kline_wakeup(self):
-    self._handle.controlWrite(Panda.REQUEST_TYPE, 0xf0, 0, 0, b'')
+    self._handle.controlWrite(Panda.REQUEST_OUT, 0xf0, 0, 0, b'')
 
   def kline_drain(self, bus=2):
     # drain buffer
     bret = bytearray()
     while True:
-      ret = self._handle.controlRead(Panda.REQUEST_TYPE, 0xe0, bus, 0, 0x40)
+      ret = self._handle.controlRead(Panda.REQUEST_IN, 0xe0, bus, 0, 0x40)
       if len(ret) == 0:
         break
       bret += ret
@@ -234,7 +235,7 @@ class Panda(object):
   def kline_ll_recv(self, cnt, bus=2):
     echo = bytearray()
     while len(echo) != cnt:
-      echo += self._handle.controlRead(Panda.REQUEST_TYPE, 0xe0, bus, 0, cnt-len(echo))
+      echo += self._handle.controlRead(Panda.REQUEST_IN, 0xe0, bus, 0, cnt-len(echo))
     return echo
 
   def kline_send(self, x, bus=2, checksum=True):