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irblaster - can't set up changing channels, HELP! -- resolve
http://forum.linhes.org/viewtopic.php?f=6&t=11423		 Page 1 of 1
Author:  tmb [ Sat Sep 02, 2006 7:31 am ]
Post subject:  irblaster - can't set up changing channels, HELP! -- resolve
OK, I have been struggling here for a few days trying to get Knoppmyth up and running with a Dish Network 311 receiver. I have an irblaster which I purchased from http://irblaster.info, and I currently have an installed working version of R5D1.

Here are the general symptoms. If anyone can help me with this I would greatly appreciate it.

    I can point the dish network provided remote control at the irblaster (not hooked to the box) and the channels will change while watching live tv.
    I can run the channel_change.sh script from the command line and it appears that something is happening (e.g., there is a brief pause as if it is going to change) but the channel does not change. The script runs with no errors
    I can use the Hauppauge grey remote while watching tv to shuffle through the channel information, but if I select a new channel the actual channel does not change.


I suspect something is wrong that's fairly obvious which I can't see.

For reference, here is the channel_change.sh script I am using.

Code:
#!/bin/bash

echo "changing to $1"

REMOTE_NAME=$(grep ^[[:space:]]*name[[:space:]] /etc/irblaster/irblasterd.conf |
  awk '{ print $2 }')

/usr/bin/irsend --device=/dev/irblasterd SEND_ONCE $REMOTE_NAME select

for digit in $(echo $1 | sed -e 's/./& /g'); do
sleep 0.2
/usr/bin/irsend --device=/dev/irblasterd SEND_ONCE $REMOTE_NAME $digit
sleep 0.2
done
/usr/bin/irsend --device=/dev/irblasterd SEND_ONCE $REMOTE_NAME select


Here is my hardware.conf:
Code:
# /etc/irblaster/hardware.conf
#
#  Author: Greg Frost

# The COM Port used by the IRBlaster. Set it to COM1 COM2 or "".
IRBLASTER_SERIAL_PORT=COM1


I am also using the 301 irblasterd.conf (which I understand is supposed to work with the 311 based on various posts I have read here and elsewhere). Again, for reference, here is the content of irblasterd.conf.
Code:
begin remote

  name  301
  bits           16
  flags SPACE_ENC
  eps            30
  aeps          100

  header        400  6100
  one           400  1700
  zero          400  2800
  ptrail        400
  gap          6200
  min_repeat      4
  toggle_bit      0

  frequency    56000

      begin codes
          info                     0x0000000000000000
          power                    0x0000000000000800
          play                     0x0000000000000C10
          1                        0x0000000000001000
          2                        0x0000000000001400
          3                        0x0000000000001800
          frwd                     0x0000000000001C10
          4                        0x0000000000002000
          5                        0x0000000000002400
          6                        0x0000000000002800
          menu                     0x0000000000002C00
          7                        0x0000000000003000
          8                        0x0000000000003400
          9                        0x0000000000003800
          ffwd                     0x0000000000003C10
          select                   0x0000000000004000
          0                        0x0000000000004400
          cancel                   0x0000000000004800
          guide                    0x0000000000005000
          mute                     0x0000000000005401
          view                     0x0000000000005800
          tv_video                 0x0000000000005C00
          right                    0x0000000000006000
          vol+                     0x0000000000006401
          up                       0x0000000000006800
          recall                   0x0000000000006C00
          left                     0x0000000000007000
          vol-                     0x0000000000007401
          down                     0x0000000000007800
          rec                      0x0000000000007C00
          pause                    0x0000000000008000
          stop                     0x0000000000008400
          sys_info                 0x0000000000009000
          */ptv_list               0x0000000000009400
          #/search                 0x0000000000009800
          sat                      0x000000000000A400
          tv                       0x000000000000A801
          rew                      0x000000000000C410
          fwd                      0x000000000000C810
          skip_back                0x000000000000D810
          skip_fwd                 0x000000000000DC10
      end codes

end remote


Any suggestions would be greatly appreciated.
Author:  tmb [ Thu Sep 07, 2006 10:48 pm ]
Post subject: 
OK, no takers. I have been continuing to investigate this. It appears that the problem may be traced back to my serial card configuration. I have a PCI card with a serial port that is correctly detected, but the ports are not configured according to the defaults for the irblaster.sh script (I think, maybe?).
Code:
lspci -v
0000:01:08.0 Serial controller: Timedia Technology Co Ltd PCI2S550 (Dual 16550 UART)
 (rev 01) (prog-if 02 [16550])
        Subsystem: Timedia Technology Co Ltd: Unknown device 4027
        Flags: stepping, medium devsel, IRQ 4
        I/O ports at d800 [size=32]

setserial -g /dev/ttyS*

/dev/ttyS0, UART: 16550A, Port: 0xd800, IRQ: 4
/dev/ttyS1, UART: unknown, Port: 0x02f8, IRQ: 3
/dev/ttyS2, UART: unknown, Port: 0x03e8, IRQ: 4
/dev/ttyS3, UART: unknown, Port: 0x02e8, IRQ: 3



I have played around in the bios, but I can't seem to get these set up correctly. Can anyone tell me how to reconfigure the settings?

Also, I have seen the following messages in dmesg:
Code:
BUG: using smp_processor_id() in preemptible [00000001] code: irblasterd/19454
caller is lirc_ioctl+0xa4/0x370 [lirc_serial]
 <c02fa777> debug_smp_processor_id+0x87/0xa0  <f8ed8174> lirc_ioctl+0xa4/0x370 [lirc_serial]
 <f947201a> irctl_ioctl+0x17a/0x1e0 [lirc_dev]  <c0182fa6> do_ioctl+0x46/0x70
 <c0183143> vfs_ioctl+0x53/0x1c0  <c018330d> sys_ioctl+0x5d/0x70
 <c0103177> syscall_call+0x7/0xb


I found some similar problems in the forums, but I think these are possibly related to the COM port configuration. Any suggestions would be helpful.

Thanks.
Author:  bburtin [ Fri Sep 08, 2006 2:14 pm ]
Post subject: 
Try hooking up a regular LED to your IR blaster cable instead of the IR one. Then run channel_change.sh and see if the light blinks. That way you know that the cable is working and plugged into the correct serial port.
Author:  tmb [ Thu Sep 14, 2006 8:25 pm ]
Post subject:  Resolved!
I found the original serial port cable that I hooked up to COM1 and it worked. Apparently the serial PCI card I had installed would not work with MythTV. If anyone else has a similar setup, it seems that getting it to work on an alternate IRQ is difficult (at least I gave up one I found the other part).

Thanks for the help.
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