Re: [pyusb-users] Controlling LED on wired xbox 360 gamepad

[Mike L. <mik...@gm...>]

Nevermind, solved it! The proper write message is:

dev.write(writeEP,"\x01\x03\x06",0)


--
Mike Lawrence
Graduate Student
Department of Psychology & Neuroscience
Dalhousie University

~ Certainty is (possibly) folly ~

On Tue, Jul 19, 2016 at 10:28 PM, Mike Lawrence <mik...@gm...>
wrote:

> Hi all,
>
> I wonder if anyone might be able to help with this one. I'm looking to use
> pyusb to interact with a wired xbox 360 gamepad. So far I can read just
> fine but I'd also like to write so I can make the LED stop blinking.
>
> Looking here (
> http://tattiebogle.net/index.php/ProjectRoot/Xbox360Controller/UsbInfo),
> I should be able to do it, but no matter what messages I try sending, I'm
> not having any luck controlling the LED. Below is the code I have thus far,
> any suggestions?
>
> import usb
> dev = usb.core.find(idVendor=1118, idProduct=654)
> dev.set_configuration()
> readEP = dev[0][(0,0)][0] #endpoint to read from
> writeEP = dev[0][(0,0)][1] #endpoint to write to
>
> print readEP #should be: <ENDPOINT 0x81: Interrupt IN>
> print writeEP #should be: <ENDPOINT 0x1: Interrupt OUT>
>
> ##read the startup messages
> for i in range(4): #usually only 4 messages
>   data = dev.read(readEP.bEndpointAddress,readEP.wMaxPacketSize,100)
>   print len(data) #should be 3
>
> ##get initial button/axes state
> data = dev.read(readEP.bEndpointAddress,readEP.wMaxPacketSize,100)
> print len(data) #should be 20
>
> ##Try to set the LED to illuminate just one element (message 0x06).
> ##Each of the following commented-out attempts fails to leave only the
> first
> ##element illuminated and subsequent attempts at reading or writing yields
> ##"usb.core.USBError: [Errno 5] Input/Output Error"
> dev.write(writeEP,'010306',100)
> # dev.write(writeEP,'0\x010306',100)
> # dev.write(writeEP,'66310',100) #decimal value of 0x010306
>
> ##attempt to read again
> while True:
>   data = dev.read(readEP.bEndpointAddress,readEP.wMaxPacketSize,100)
>
>