> Taking advantage of your kindness I am going to ask another question:
> My device is supposed to answer only two commands. Either "O""K", which in
> ASCII is "0x004F 0x004B 0x0000 0x0000 ..." or "N""O", which is "0x004E
> 0x004F 0x0000 0x0000 ..."....But it doesn't matter what command I send I
> always get "0x0008 0x0080 0x0000 0x0000 0x0008 0x0080 0x0000 0x0000".
> From your experience....Do you think that since my device is not supposed to
> send that answer it is possible that the one answering is not my device, but
> rather the USB controller itself or something like that?.
I don't think so. It may be a error status, but from you device.
> --
> Begoña Fuentes
>
>
> 2010/9/21 Wander Lairson <wander.lair...@gmail.com>
>>
>> I guess what you mean in command is
>>
>> command =[0x00, 0x00, 0x00, 0x00, 0x00, 0x00]
>>
>> 2010/9/21 Begoña Fuentes <begofume...@gmail.com>:
>> > 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 <wander.lair...@gmail.com>
>> >>
>> >> What is "st" in a=ep_out.write(st) ?
>> >>
>> >> 2010/9/21 Begoña Fuentes <begofume...@gmail.com>:
>> >> > 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
>> >> > pyusb-users@lists.sourceforge.net
>> >> > 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
>> >> pyusb-users@lists.sourceforge.net
>> >> 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
>> > pyusb-users@lists.sourceforge.net
>> > 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
>> pyusb-users@lists.sourceforge.net
>> 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
> pyusb-users@lists.sourceforge.net
> 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
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