[Voyage-linux] Error connecting multiple PL2303 Serial Converter

[Pippo Pippo 77]

I have a 2D3 board with a 7 port USB Hub available :-)
Thanks and good night

2012/1/18 Michael Steinmann <mike.steinmann at gmail.com>

> yes, but unless you have an alix with internal usb headers (e.g. alix2d13)
> you will need an USB-hub for so many devices.
>
>
> -Michael
>
> 2012/1/18 Pippo Pippo 77 <pippopippo77 at email.it>
>
>> Hi MIchael,
>> last question.
>> I have to connet 3/4 of this adapter to same Alix box with Voyage linux.
>> It will works from your experience?
>> Thanks and good night
>>
>>
>> 2012/1/18 Michael Steinmann <mike.steinmann at gmail.com>
>>
>>> I have such cables, and they are fully supported by Linux.
>>> AFAIK there is no multiple adapter chipset, see
>>> http://www.silabs.com/products/interface/usbtouart/Pages/usb-to-uart-bridge.aspx
>>> There are even (windows) tools to completely rename the PID/VID and set
>>> the product string, see:
>>>
>>> http://www.silabs.com/pages/DownloadDoc.aspx?FILEURL=Support%20Documents/Software/an144sw.zip&src=SoftwardDownloadsWebPart
>>>
>>> I've produced PCBs with the CP2102 and I really can recommend them, let
>>> me know if you want to go that road...
>>>
>>> Best regards,
>>> Michael Steinmann
>>>
>>>
>>>
>>>
>>> 2012/1/18 Pippo Pippo 77 <pippopippo77 at email.it>
>>>
>>>> Hi Michael,
>>>> and thanks for your help.
>>>> I have a couple of question regarding cp210x adapter, and I would
>>>> appreciate if you can help me.
>>>>
>>>> 1) Do voyage 0.5 with 2.6 Branck kernel have driver for this?
>>>> 2) Do voyage 0.8 with 3.0 kernse have driver too?
>>>> 3) Do you know if exist multiple adapter based on this chipset? For
>>>> example 1 USB but 2/4 serial Port?
>>>>
>>>>
>>>> Many Thanks
>>>>
>>>>
>>>> 2012/1/18 Michael Steinmann <mike.steinmann at gmail.com>
>>>>
>>>>> Hi,
>>>>>
>>>>> I had bad experiences with Profilic based adaptors, they are a POS!
>>>>> Get a silicon labs cp210x based adaptor, which I think are even better
>>>>> than those from FTDI.
>>>>>
>>>>>
>>>>> http://www.alibaba.com/product-gs/288753118/cp2102_usb_rs232_cable_VCC_GND.html
>>>>>
>>>>> http://connectingcables.en.alibaba.com/product/326571577-210803458/CP2102_FT232_PL2323_optional_RS232_to_USB_adapter_cable.html
>>>>>
>>>>> -Michael
>>>>>
>>>>>
>>>>> 2012/1/18 Pippo Pippo 77 <pippopippo77 at email.it>
>>>>>
>>>>>> Hi,
>>>>>> i need to connet 2 PL2303 serial converter in order to get 2 serial
>>>>>> port.
>>>>>> I tried this with voyage 0.8 and voyage 0.5, and behaviour is the
>>>>>> same.
>>>>>>
>>>>>> When I connect the converters, i got some message in dmesg log, that
>>>>>> told me that converters is attached to /dev/ttyUSB0 and /dev/ttyUSB1.
>>>>>>
>>>>>> If i use this converter one by one, it work without problem, but i
>>>>>> need to use it together with 2 modem at same time.
>>>>>> In this case, the second device I try to open with minicom, it would
>>>>>> not connect and i got this message into dmesg log:
>>>>>>
>>>>>> *pl2303_open - failed submitting interrupt urb, error -28*
>>>>>>
>>>>>> I tried with Voyage 0.8 with new kernel but problem persist. Useing
>>>>>> device one a time, works perfectly, but together not, the second i try to
>>>>>> use i got this interrupt urb error.
>>>>>> What can cause this? What can i try?
>>>>>>
>>>>>> Any help would be appreciated. Many Thanks in Advance.
>>>>>>
>>>>>> Marco
>>>>>>
>>>>>> _______________________________________________
>>>>>> Voyage-linux mailing list
>>>>>> Voyage-linux at list.voyage.hk
>>>>>> http://list.voyage.hk/mailman/listinfo/voyage-linux
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
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