LinHES Forums
http://forums.linhes.org/

Cablevision SA4200HD FW channel changing stopped working
http://forums.linhes.org/viewtopic.php?f=11&t=19167		 Page 1 of 1
Author:  mlbuser [ Sat Nov 01, 2008 1:33 pm ]
Post subject:  Cablevision SA4200HD FW channel changing stopped working
Looks like Cablevision has been pulling tricks on STB users on Halloween in my neighborhood. The channel changing exe sa3250 stopped working due to a box firmware update (?).

Anyway I always had to use 'sa3250 -s channel' in the past, but that stopped working. After only a little googling I found the answer was to stop using -s and also change how the multi-cmd was formatted.

If you have access to sa3250.c the changes are highlighted below.

Code:
       /* Default method sending three seperate digits */
       dig[2] = 0x30 | (chn % 10);
       dig[1] = 0x30 | ((chn % 100)  / 10);
       dig[0] = 0x30 | ((chn % 1000) / 100);

       cmd[0] = CTL_CMD0 | AVC1394_SA3250_OPERAND_KEY_PRESS;
       cmd[1] = CTL_CMD1 | ((chn<<8)&0xffff00) | (chn & 0xff);
       cmd[2] = CTL_CMD2;

       if (verbose)
          printf("AV/C Command: %d%d%d = cmd0=0x%08x cmd2=0x%08x cmd3=0x%08x\n",
                dig[0] & 0xf, dig[1] & 0xf, dig[2] & 0xf, cmd[0], cmd[1], cmd[2]);

       avc1394_transaction_block(handle, 0, cmd, 3, 1);
       cmd[0] = CTL_CMD0 | AVC1394_SA3250_OPERAND_KEY_RELEASE;
       cmd[1] = CTL_CMD1 | ((chn<<8)&0xffff00) | (chn & 0xff);
       cmd[2] = CTL_CMD2;


cmd[1] used to be based on dig[], but now needs to be as shown.

Anyway http://www.gossamer-threads.com/lists/mythtv/users/355395 is where I hit on the answer.

Mark
Page 1 of 1 All times are UTC - 6 hours
Powered by phpBB® Forum Software © phpBB Group
http://www.phpbb.com/