Hi,<br><br>I had bad experiences with Profilic based adaptors, they are a POS!<br>Get a silicon labs cp210x based adaptor, which I think are even better than those from FTDI.<br><br><a href="http://www.alibaba.com/product-gs/288753118/cp2102_usb_rs232_cable_VCC_GND.html">http://www.alibaba.com/product-gs/288753118/cp2102_usb_rs232_cable_VCC_GND.html</a><br>
<a href="http://connectingcables.en.alibaba.com/product/326571577-210803458/CP2102_FT232_PL2323_optional_RS232_to_USB_adapter_cable.html">http://connectingcables.en.alibaba.com/product/326571577-210803458/CP2102_FT232_PL2323_optional_RS232_to_USB_adapter_cable.html</a><br>
<br>-Michael<br><br><br><div class="gmail_quote">2012/1/18 Pippo Pippo 77 <span dir="ltr"><<a href="mailto:pippopippo77@email.it">pippopippo77@email.it</a>></span><br><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
Hi,<br>i need to connet 2 PL2303 serial converter in order to get 2 serial port.<br>I tried this with voyage 0.8 and voyage 0.5, and behaviour is the same.<br><br>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.<br>
<br>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.<br>In this case, the second device I try to open with minicom, it would not connect and i got this message into dmesg log:<br>
<br><b>pl2303_open - failed submitting interrupt urb, error -28</b><br><br>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.<br>
What can cause this? What can i try?<br><br>Any help would be appreciated. Many Thanks in Advance.<br><br>Marco<br>
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