On Sat, 4 Dec 2010 10:09:42 -0800 VDR User <user....@gmail.com> wrote:
> On Sat, Dec 4, 2010 at 4:24 AM, Steffen Barszus > <steffenbpu...@googlemail.com> wrote: > > a) save some energy - if DVB devices are not opened all the time, > > the driver has the chance to put it into standby saving some heat, > > energy and lifetime of the cards > > There are a couple cards that consume a lot of power iirc so this > could actually be useful for users of those cards. But what about > performance/lag? And also how healthy is it to constantly put a > device in and out of standby? Actually how likely it would be that this is constantly happening ? Having 2 or 3 tuner watching 1 single channel, then every now an then a couple of recordings i think it's likely 80% in standby - similar to harddisks which i have in standby except i watch recordings etc. > > b) have a beginning of dvb device hotplug - if dvb devices are > > discovered on demand, its a good chance at a later stage to also add > > and remove cards on the fly. There is sure some notification > > required from udev to vdr so it can keep internal reference of the > > how many devices are there. > > I wonder if this is actually useful. Is there anyone that would > need/want this in the real world? I think yes, beside what gerald mentioned allready, one could also think of driver reload on a single device without interrupting running recordings. Also there might be devices which ar not THAT standard like netceiver or Sundtek network shared devices, which dont work like you would expect from internal pci devices. So question is more what are the arguments against this except the required changes ? I think this would be what you would expect how it works in todays world. One could say it's the reason why you can not have TV picture 2s after S3 keeping the vdr running during S3. To make it short I see use cases for it - i just can not manage to do it myself - so i thought i share my thoughts, by chance someone interested is reading it. Kind Regards Steffen _______________________________________________ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
