Johannes Stezenbach wrote: > Hi, > > On Sun, May 27, 2007, Christian Prähauser wrote: >> Johannes Stezenbach wrote: >>> On Wed, May 16, 2007, Christian Praehauser wrote: >>> >>>> The branch is available at >>>> http://www.cosy.sbg.ac.at/~cpraehaus/hg.cgi/v4l-dvb. > > What you did to include/linux/dvb/net.h is not allowed. > You must not break backwards compatibility of userspace > APIs. You can only add new ioctls or make backwards compatible > changes to existing ioctls, but not delete or change them. > Or add old cruft to Documentation/feature-removal-schedule.txt. > > (Well, I have no practical experience with dvb-net, and the > API design is from Nokia, so maybe it's totally broken and > no one uses it. AFAIK, there are quite some people using dvb-net alongwith the B2C2 cards and the VP-1025/32 cards, currently. > But unless you are absolutely sure that > there are no users you are not allowed to break it.) > > Have you looked at the ioctls which ifconfig uses? > (man 2 ioctl_list) > E.g. would it be possible to use SIOCGIFCONF to > find the dvb-net interfaces? > Could one use ifconfig e.g. to set the MAC? > > In general, I'm not convinced that it was a good idea > to put dvb-net in the kernel at all, because I think > usually MPE/ULE traffic would be encrypted (probably > with your ISP's proprietary scheme), so you'd have a daemon > in userspace which sets the section filters to receive > the data, decrypt it, and feed packets into the network > stack via a tun device. IMHO the overhead of doing it > in userspace would be minor. It also makes it easy to > use multiple PIDs which didn't work well with dvb-net > (one PID per dvb net device). > > But again, I have no practical experience with dvb-net, > you're the dvb-net expert now ;-), so I trust you to > make the right decision. > > > HTH, > Johannes > > _______________________________________________ > linux-dvb mailing list > linux-dvb@xxxxxxxxxxx > http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb > _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
