Re: [pyusb-users] Operation Timed Out

[Wander L. <wan...@gm...>]

I guess what you mean in command is

command =[0x00, 0x00, 0x00, 0x00, 0x00, 0x00]

2010/9/21 Begoña Fuentes <beg...@gm...>:
> Sorry! st=command....I made that change when I copied the code to make it
> more legible...I have changed it already.
> --
> Begoña Fuentes
>
>
> 2010/9/21 Wander Lairson <wan...@gm...>
>>
>> What is "st" in a=ep_out.write(st) ?
>>
>> 2010/9/21 Begoña Fuentes <beg...@gm...>:
>> > Hi everybody, this is my first time in this list, so I apologize in
>> > advance
>> > if this is not the way to contact you.
>> > I am newer with pyusb and I am having a trouble that I am not able to
>> > solve
>> > by myself, so I would appreciate any help you can give me.
>> > I am trying to obtain diverse information from a USB device. I have the
>> > communication protocol (so I know what commands I have to write) and I
>> > am
>> > working under Ubuntu 10.04 The problem is that I am always getting
>> > "Operation Timed Out" error after reading, so I am not able to read
>> > anything.
>> > This is my code: (any comment would be extra-appreciated)
>> > import usb.core
>> > import usb.util
>> > import usb
>> > import sys
>> > command ="0x0000 0x0000 0x0000 0x0000 0x0000 0x0000"
>> > dev = usb.core.find(idVendor=0x0590, idProduct=0x0028)
>> > if dev is None:
>> >     raise ValueError('Device not found')
>> > dev.set_configuration()
>> >
>> > #Find endpoints
>> > ep_out = usb.util.find_descriptor(
>> >         dev.get_interface_altsetting(),   # first interface
>> >        # match the first OUT endpoint
>> >         custom_match = \
>> >             lambda e: \
>> >                 usb.util.endpoint_direction(e.bEndpointAddress) == \
>> >                 usb.util.ENDPOINT_OUT
>> >     )
>> >
>> > ep_in = usb.util.find_descriptor(
>> >         dev.get_interface_altsetting(),   # first interface
>> >         # match the first OUT endpoint
>> >         custom_match = \
>> >             lambda e: \
>> >                 usb.util.endpoint_direction(e.bEndpointAddress) == \
>> >                 usb.util.ENDPOINT_IN
>> >     )
>> >
>> > a=ep_out.write(command)
>> > ret=ep_in.read(64, timeout=12000)
>> > print ret
>> >
>> > Thank you in advance!!
>> > --
>> > Begoña Fuentes
>> >
>> >
>> > ------------------------------------------------------------------------------
>> > Start uncovering the many advantages of virtual appliances
>> > and start using them to simplify application deployment and
>> > accelerate your shift to cloud computing.
>> > http://p.sf.net/sfu/novell-sfdev2dev
>> > _______________________________________________
>> > pyusb-users mailing list
>> > pyu...@li...
>> > https://lists.sourceforge.net/lists/listinfo/pyusb-users
>> >
>> >
>>
>>
>>
>> --
>> Best Regards,
>> Wander Lairson Costa
>>
>>
>> ------------------------------------------------------------------------------
>> Start uncovering the many advantages of virtual appliances
>> and start using them to simplify application deployment and
>> accelerate your shift to cloud computing.
>> http://p.sf.net/sfu/novell-sfdev2dev
>> _______________________________________________
>> pyusb-users mailing list
>> pyu...@li...
>> https://lists.sourceforge.net/lists/listinfo/pyusb-users
>
>
> ------------------------------------------------------------------------------
> Start uncovering the many advantages of virtual appliances
> and start using them to simplify application deployment and
> accelerate your shift to cloud computing.
> http://p.sf.net/sfu/novell-sfdev2dev
> _______________________________________________
> pyusb-users mailing list
> pyu...@li...
> https://lists.sourceforge.net/lists/listinfo/pyusb-users
>
>



-- 
Best Regards,
Wander Lairson Costa