[mythtv-users] HDPVR Kernel module reload as power cycle

[Rob Davis]

On 2012-12-06 15:40, Myth TV wrote:
> On Wed, Dec 5, 2012 at 7:59 AM, Rob Davis <rob at davis-family.info> 
> wrote:
>
>> On 2012-12-04 11:26, Michael wrote:
>>
>>> On 11/30/2012 09:33 AM, Steven Adeff wrote:
>>>
>>>> from the wiki,
>>>> "If you still experience problems with stability, a small kernel
>>>> module re-load script is included below in the Bitrate and Picture
>>>> Controls sub section that re-loads the kernel modules and acts 
>>>> like a
>>>> power cycle on the HD-PVR." -
>>>>
>>>> 
>>>> http://www.mythtv.org/wiki/Hauppauge_HD-PVR#Firmware_Version_Stability 
>>>> [1]
>>>>
>>>> Is this correct, that reloading the kernel module for the hdpvr 
>>>> acts
>>>> as a power cycle negating the need for the user to physically 
>>>> power
>>>> cycle the device?
>>>>
>>>> If so, has anyone figured out a way to initiate a module reload at 
>>>> a
>>>> time where MythTV won't be using any attached HDPVR devices?
>>>
>>> Here is what I use to see if my hdpvrs are in use and if not, power
>>> down my satellite receiver.  You could probably modify it to do 
>>> what
>>> you want.
>>>
>>> !/bin/bash
>>> export PATH=/usr/bin
>>> MYTHWEBURL=http://<url>/mythweb/status
>>>
>>> wget -O - --quiet $MYTHWEBURL | grep HDPVR |
>>> while read line; do
>>>         dish=`echo $line | sed -e 's/.*hdpvr([0-9]).*/1/'`
>>>         if `echo $line | grep --quiet 'and is not recording'`; then
>>>                 echo "Powering off directv-${dish}"
>>>                 /usr/local/bin/directv-${dish} off
>>>         else
>>>                 echo "directv-${dish} is busy"
>>>         fi
>>> done
>>
>> How often do you run this?
>
> Since I want the satellite off any time it isn't in use, I run this
> every 30 minutes.
>
> In the case of reloading the module, may you run want to reload  once
> or twice a day.
>
> The script would probably need to be modified to:
>
> 2) Check to see if the PVR is in use
> 3) If it is, sleep 10 minutes and loop until it isn't
> 4) Reload the module
> 5) exit
>
> Michael
>
>
I just went back to cable after 2 years with OTA only.  I have modified 
your script to work with a Comcast box to turn it off when not in use.  
I had a watch script to check if the backend had exited every 20 mins, 
so I added it to that.  I have a line in it to check if the box is being 
used and is on or off, if not being used and on it will turn it off, 
then another in my channel change script to check it's status and turn 
it on before changing channel.  Not sure how much electricity it will 
save, but better than nothing.

Thanks for the idea.