no, the mythtv box has no hardware serial ports so I need usb2serial on both ends of the nul modem cable.<br><br><br><br><div><span class="gmail_quote">On 7/23/07, <b class="gmail_sendername">John Pierce</b> <<a href="mailto:john.j35@gmail.com">
john.j35@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">On 7/21/07, Tim Litwiller <<a href="mailto:timlitw@gmail.com">
timlitw@gmail.com</a>> wrote:<br>> I need help from someone who has done this before.<br>><br>> This might be more a linux question than mythtv question but it relates to<br>> my mythtv setup<br>><br>> I am running fedora core 6
<br>> with 2 directv D12-300 STB's<br>><br>> I followed the wiki and got usb to serial adapter cord and nul modem cables<br>> that are the same chip as the recommended and I don't get the /dev/ttyUSB*<br>
> device when I plug them in.<br>><br>> So I enabled the 1 serial port on the mother board - and tried that, but I<br>> am guessing that I need to specify somewhere the speed to communicate thru<br>> the port.
<br>><br>> Is anyone here willing to step me thru diagnosing why the usb-><br>> serial(rs232) ports to initialize correctly? and the see if we can get the<br>> directv.pl script to make the STB respond?<br>
><br>><br>Ok, you have the serial null modem cable plugged into the computer and<br>then the usb->serial adapter plugged into the null modem cable and<br>then the other end of the usb->serial adapter plugged into the stb,
<br>correct?<br><br>Ok, on a suse 10.2 with directv.pl I send the command to /dev/ttyS0<br>not the usb device.<br><br>After a recent upgrade I had to modify the directv.pl script to set<br>the baud rate to 9600 from 115200 that it originally worked with.
<br><br>#$baudrate = "115200";<br>$baudrate = "9600";<br>$serport = "/dev/ttyS0";<br><br>#<br># Box type, set with box_type command<br>#<br>$box_type = "D11";<br><br>Notice that the baud rate is set to 9600 and the serial port is /dev/ttyS0
<br><br>When I set mine up it just worked.<br><br>Hope this helps!<br><br>--<br>John<br>Registered Linux User 263680, get counted at<br><a href="http://counter.li.org">http://counter.li.org</a><br>_______________________________________________
<br>mythtv-users mailing list<br><a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br><a href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users">http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
</a><br></blockquote></div><br>